Device for the controlled release and/or controlled supply of control agents to combat arthropods, a

专利摘要:
Device for the controlled release and/or controlled supply of control agents to combat arthropods, and uses thereof. The present invention relates to a device for the controlled release and/or controlled delivery of at least two control agents simultaneously to combat arthropods, of which at least one is a semiochemical and at least one is a toxic compound. Said device comprises at least one container containing said control agents, at least one passage regulating means of these control agents, and means for activating said at least one passage regulating means. Additionally, the present invention also provides the use of said device for the control of arthropods, based on controlled release and/or controlled delivery of at least two arthropod control agents simultaneously, of which at least one is a compound semiochemical and at least one is a toxic compound. (Machine-translation by Google Translate, not legally binding)
公开号:ES2701604A1
申请号:ES201731048
申请日:2017-08-25
公开日:2019-02-25
发明作者:Fuertes Ismael Navarro；González Sandra Vacas；Llopis Vicente Navarro；Bargués Javier Marzo；Millo Jaime Primo；Garcia Alejandro Carbonell
申请人:Ecologia Y Proteccion Agricola S L；
IPC主号:

专利说明:

[0001] Device for the controlled release and / or controlled supply of control agents to combat arthropods, and uses thereof
[0002]
[0003]
[0004]
[0005] The present invention is based on a device for controlled release and / or controlled delivery of at least two control agents contained in at least one container simultaneously to combat arthropods, preferably by means of a regulating passage means equipped with an activation means , which allow a release of said control agents at a substantially constant speed.
[0006]
[0007] Additionally, this invention also relates to the use of said device for the controlled release and / or controlled delivery of at least two arthropod control agents simultaneously.
[0008]
[0009] BACKGROUND OF THE INVENTION
[0010]
[0011] Living organisms use the information they perceive from the environment in the form of chemical compounds to increase their welfare or ensure both their survival and that of their species, for example, to locate food sources, locate individuals of the same species or evade predators. This form of communication acquires a special relevance in the case of insects, being in some cases essential for mating. The chemical compounds responsible for these interactions, either between individuals of the same species ( ie intraspecific interactions) or between individuals of different species ( ie interspecific interactions), are known as semiochemicals (Agelopoulos et al Pesticide Science 1999 , 55, 225-235). ).
[0012]
[0013] The semiochemicals that mediate the intraspecific interactions are known as pheromones, where the beneficiary may be the emitting organism of said chemical compounds, the receptor or both. On the other hand, the semiochemicals that mediate the interspecific interactions are known as allelochemical compounds. Three types of allelochemical compounds are known:
[0014] - Allomonas: benefit the issuer.
[0015] - Kairomonas: benefit the receiver but not the issuer.
[0016] - Synomonas: receptor and emitter benefit, eg synomonas mediating pollination.
[0017]
[0018] The semiochemicals are usually volatile organic compounds, which allows their capture by the smell of the insect, where later an electrical signal is generated that is translated as a perception of the central nervous system. As a result, a change in the physiological behavior of the insect can be triggered, an aspect of special interest in the field of pest controls, and in ecology in general, since these semiochemicals are capable of generating a highly complex communication system between plants and associations of pollinators, herbivorous insects, and their parasites and predators (Unsicker et al Curr, Opin. Plant, Biol. 2009 , 12, 479-485).
[0019]
[0020] Said semiochemical compounds, in particular, sexual or aggregation pheromones, are widely used in the insect pest control sector, in particular, in the monitoring of insect populations, to determine their presence or absence in an area, as well as its density. Such monitoring can be essential in the integrated management of insect pests.
[0021]
[0022] These sex pheromones can also be used in the control of pests by different techniques, one of them causing a disruption in communication ( ie sexual confusion or in English, "mating disruption") between male and female insects, which allows to avoid or postpone the mating As a result, fertile eggs are not laid, so damage to crops is avoided because hatching does not occur. As a result, the populations of these insects are progressively reduced considerably, minimizing the damage they produce significantly. This technique has been particularly successful in the case of the Lepidoptera family, and is carried out by releasing a significant amount of pheromone over a wide area. In general, the pheromone overexcitates or saturates for a time the antenna receptors of the male insects, which will no longer be able to find the females for mating, thus slowing the reproduction of the species. In general, the amount of sexual pheromone used per hectare is high, for example, for the moth of the grape cluster ( Lobesia botrana) is around 100 g. Commonly, the pheromone is distributed in a number of emission points equal to or greater than 100 per hectare.
[0023] Additionally, it is known in the state of the art that for the disruption method in the communication is effective, the release of the semiochemical ( eg sexual pheromone) in a certain amount and for a certain period of time ( ie that is persistent and with a constant emission rate) is necessary. Therefore the emission device of this pheromone, must meet this requirement for two reasons: to ensure proper operation of the technique and to avoid unnecessary expenditure of sex pheromone, since its associated manufacturing cost is usually higher in comparison with traditional pesticides, which limits the use of these substances in some cases.
[0024]
[0025] There are different methods of dispensing semiochemicals, which can be grouped into two types. The first of them can be classified as matrix, where the pheromone is adsorbed in a solid matrix, being its form of passive dispensation. In the second one, the pheromone is contained in a deposit, its dispensation being carried out passively or actively. In general, for an average treatment period of 120 days, these devices require releasing an amount of pheromone comprised between 4 and 10 mg / day and emitter according to the species of insect. However, although some of these systems regulate in an acceptable manner the emission of the sexual pheromone at the doses required for the sexual confusion technique, most of the currently available methods of dispensing semiochemicals fail to meet these requirements, because to which they generally conform to an exponential and non-linear release kinetics, so that the semiochemical is released too quickly, and as a consequence, said semiochemical available in the dispenser or device is depleted in a relatively short period of time .
[0026]
[0027] On the other hand, in other dispensing methods, the problem lies in a fluctuating release of the semiochemical ( eg by variation of the emission with temperature) so that at times the amount dispensed to the atmosphere is too high, wasting active ingredient, while in others it can be so low that it stops interacting with insects and the desired effect is lost.
[0028]
[0029] In the field of pest control, in addition to the use of pheromones for the monitoring of insect populations mentioned above, the technique of mass capture or attraction and affectation is also extended, although to a lesser extent, whether by death, infection or sterilization of insects. In both cases, the attraction exerted by a sexual pheromone towards its emission focus allows the capture and / or death of a significantly large number of insects of the species to be controlled. In this sense, the emission doses required for the use of these two techniques are of particular relevance, and in general are several orders of magnitude lower than those described for the sexual confusion technique discussed above. This emission is critical and should allow the attraction of the insect to the focus efficiently, since a lower dose would not produce the desired effect and a higher dose could cause an excessive blocking of the insect's receptors that prevents it from finding the focus of the insect accurately. issue. In addition, these techniques usually require long emission periods that cover, at least in the techniques of attraction and affectation, the crop cycle, so that a suitable device for these techniques must meet the requirements of having an emission at lower concentrations with substantially constant emission rates.
[0030]
[0031] However, the devices containing sex pheromones for attraction that can currently be found in the market are of the matrix type, in which generally a polymer ( eg rubber or silicones) is impregnated with a dose in the range between 0.5 mg and 1 mg pheromone; its duration in the field is about two weeks, although its emission kinetics is not linear, but exponential, and with relatively high residual loads, so its effectiveness falls rapidly over time. In addition, if they could be used for a technique of attraction and affectation, this would require the use of several spare parts of the same in the same crop cycle, something unaffordable from the economic point of view.
[0032]
[0033] The inclusion of a toxic composition in this type of devices is highly interesting since it allows a drastic reduction of the amount of insecticide per hectare compared to conventional chemical control, although it presents another technical challenge that in the current devices is not resolved. In general, the devices that are marketed for this purpose have an impregnated composition, absorbed or mixed in some support that is toxic for insects. This toxic composition is exposed to environmental agents ( ie light and oxygen), which usually cause the degradation of the active ingredients with insecticidal activity. For example, the sensitivity of a large number of pyrethrins and pyrethroids to ultraviolet radiation is widely known in the art. Also physical factors such as dust, abrasion or the use of powdered formulations ( eg with mineral oils) in the crop itself for the treatment of other pests in many cases cause a reduction of the toxic effect of the device, which in turn results in a reduction of the effectiveness of the technique used with semiochemicals. Additionally, a partial effect of the toxic can promote the appearance of resistance to the insecticide substance altogether undesired. In addition, all the factors mentioned above are aggravated in order to extend the useful life of the devices.
[0034] It should also be mentioned that, given the number of emission points usually high per hectare that are used in the techniques of attraction and affectation, it is an essential requirement for their applicability that these devices have a durability in the field that covers the cultivation cycle, and that both its manufacturing and final costs are economically affordable. Finally, it is important to highlight the need for these devices to guarantee the safety of the applicator at all times, due to the insecticide substances found among its components. It is therefore necessary to avoid at all times the contact of the applicator with toxic chemical compounds potentially harmful to health, minimizing the risk to the operators who are responsible for installing these systems.
[0035]
[0036] In this context, patent EP 0194896 describes a device of cylindrical shape made of low density polyethylene and covered at least partially by a membrane consisting essentially of polyethylene, polypropylene, or any of its copolymers, which is sealed at both ends one Once the sample of pheromone-like active principle in solution has been introduced. This device allows to reduce the fluctuations associated with the effect of the increase of the outside temperature, for example in summer, since the expansion of the solvent occurs, with the consequent reduction in the concentration, but at the same time the speed of release of the product is increased . However, a strong solar exposure could lead to the expansion and even breakage of the container, with the risks that this would entail.
[0037]
[0038] In EP 0496102, a device for slow and continuous release of pheromones of the class of products known as sexual baits, comprising several containers made of synthetic material with a determined thickness is described; In addition, this device allows the simultaneous release of different pheromones, in order to address the simultaneous control of several pests. However, to ensure that the release occurs at the proper rate, the pheromone containers must meet strict size specifications ( ie a surface-volume ratio of 2 to 8 cm-1) and weight ( ie weight of the synthetic material). to volume per chamber less than 1.5 g / cm3). This limitation of dimensions may mean, for example, not having enough pheromones to complete a complete treatment and efficiently combat the pests of more serious insects.
[0039]
[0040] Patent US 6109537, on the other hand, illustrates a device for releasing substances volatile to the environment, comprising a receptacle containing said substances, a selective permeable membrane, a mechanical modulator of release rate, and paper of filter located inside the receptacle on which the volatile substance is added by pipetting. This mechanical modulator is a perforated sheet comprising a plurality of holes evenly distributed over its surface, acting as channels through which the substance circulates relatively consistently. However, in this device the compatibility between the membrane and the mechanical modulator itself is critical, which will limit the possible materials suitable for its application; In addition, the use of the device presents a certain complexity, since it will be necessary to apply the substance on the filter paper, and this may also involve certain risks to the health of the person in charge of the application, due to its exposure to products chemicals that can be harmful to a human being.
[0041]
[0042] From all this, the need for new controlled release devices for semiochemical compounds that ensure a correct dosage of one or more of these substances simultaneously, as well as one or more toxic compounds, during the useful life of the device.
[0043]
[0044] Detailed description of the invention
[0045]
[0046] An object of the present invention relates to a device for controlled release and / or controlled delivery of control agents simultaneously to combat arthropods.
[0047]
[0048] In the context of the present description, "control agent" means any chemical compound selected from the group consisting of semiochemicals, toxic compounds and any of their mixtures or formulations, preferably of a pesticidal nature, which may affect the species plague through different modes of action such as attraction, repellence, sexual confusion, sterilization or death.
[0049]
[0050] On the other hand, the expressions "substantially constant velocity" or "substantially constant emission velocity" mean that the value of the velocity parameter undergoes a variation over time that is sufficiently small to be capable of being considered equivalent to constant velocity, in the context of the present invention, without necessarily becoming the same.
[0051]
[0052] By the term "passage regulating medium", in the present description, is meant any material capable of controlling the diffusion of the molecules corresponding to the agents of control, causing a release and / or controlled replacement of them according to their vapor pressure.
[0053]
[0054] The term "fluidic communication medium", in the present description, refers to any solid or fluid medium, which makes it possible to connect the control agents contained in the at least one container with the at least one flow regulator. not limiting, said fluidic communication means may consist of one or more channels or tubes of different sizes and / or shapes depending on the specific use, eg of the desired diffusion rate, or of the rate of replacement of toxic agents on the surface of the regulating medium of passage.
[0055]
[0056] In a first embodiment, a device is provided for the controlled release and / or controlled delivery of at least two control agents simultaneously to combat arthropods, of which at least one is a semiochemical and at least one is a toxic compound , characterized in that it comprises at least one container that contains the control agents, at least one means for regulating the passage of said two or more control agents, and means for activating said at least one passage regulating means, wherein:
[0057]
[0058] - said at least one container comprises one or more fluid communication means configured to allow the transfer of fluids between said at least one container and said at least one passage regulating means,
[0059] - said at least one passage regulating means defines a controlled release and / or supply surface of said at least two control agents, and
[0060] - said means for activating said at least one passage regulating means are configured for controlled action.
[0061]
[0062] Said at least one container is impermeable to the control agents to avoid undesired and uncontrolled losses of said agents. In a preferred embodiment, said at least one container is made of a material impervious to the control agents; more preferably, said at least one container is made of a waterproof material which is a metallic material; still more preferably, said at least one container is made of a waterproof material which is a metallic material containing aluminum; even more preferably, said at least one container is made of a waterproof material which is a metallic material consisting of aluminum.
[0063]
[0064] In an alternative embodiment, said at least one container is made of a material waterproof that contains a metallic polymer.
[0065]
[0066] In another alternative embodiment, said at least one container is made of a first material at least partially permeable to the control agents, said container being covered by a second material impervious to the control agents. In particular, said at least one container can be made of a first material totally permeable to the control agents, said container being covered by a second material impermeable to the control agents.
[0067]
[0068] Preferably, any of the above embodiments described in reference to the characteristics of the container impermeable or partially permeable to the control agents, provides opacity to said container; this feature allows to avoid, in an advantageous manner, the photodegradation of the control agents contained in said containers.
[0069]
[0070] In addition, this at least one container comprises one or more fluid communication means with at least one passage regulating means, whose function is to ensure communication between the container and the passage regulating means, thus allowing the transfer of the control agents used for controlled release and / or controlled delivery, from said container to said passage regulating means.
[0071]
[0072] The present invention provides a device in which two or more control agents can be simultaneously supplied for the control of arthropods, of which at least one is a semiochemical and at least one is a toxic compound. Thus, in different embodiments of this aspect of the invention, it is possible to simultaneously deliver at least one semiochemical and several toxic compounds, or vice versa, i.e., at least one toxic compound and several semiochemicals simultaneously. These aspects show the versatility of the device, which will be especially advantageous for use in the treatment of different arthropods, with different requirements in terms of time of emission of compounds, diffusion speed, diffusion range, combination of semiochemicals to cause synergism , etc.
[0073] Also, it will be apparent from the present description, that the device may contain only one container in which all the control agents selected for controlled release and / or controlled delivery are kept, or may contain several containers, which it allows, for example, to store said one or more semiochemical compounds and said one or more toxic compounds independently. This latter aspect is particularly advantageous in those combinations of control agents in where the compounds are chemically incompatible with each other, thus avoiding unwanted reactions.
[0074]
[0075] This device of the present invention can also contain one or more containers, which contain the control agents, with different thicknesses, sizes and shapes, allowing different embodiments of the invention to be used for the treatment of attraction and death, or monitoring of arthropods, specially adapted for each species and target space.
[0076]
[0077] Illustratively, but not limitingly, said one or more semiochemical compounds used in the context of the present invention can be selected from the group consisting of:
[0078]
[0079] a) Carboxylic acids with a carbon atom number comprised between 2 and 40 ( ie chemical compound containing at least one terminal carboxyl functional group), which may be linear or cyclic, and may be optionally substituted by one or more substituents, or any of its salts.
[0080] b) Carboxylic esters with a carbon atom number comprised between 2 and 40 ( ie chemical compound containing at least one carboxyl functional group), which may be linear or cyclic, and may be optionally substituted by one or more substituents,
[0081] c) Hydrocarbons, which can be saturated or unsaturated ( ie alkenes or alkynes with different degrees of saturation) with a number of carbon atoms comprised between 2 and 40, linear or cyclic, and can also be optionally substituted by one or more substituents,
[0082] d) Ketones ( ie chemical compound containing at least one carbonyl functional group) with a number of carbon atoms comprised between 3 and 40, lines or cyclics, which may also be optionally substituted by one or more substituents, and optionally, may include in its skeleton one or more heteroatoms, preferably nitrogen,
[0083] e) Quinones of general formula
[0084]
[0085]
[0086]
[0087]
[0088] optionally substituted by one or more substituents,
[0089] f) Alcohols ( ie chemical compound containing at least one hydroxyl group) with a number of carbon atoms between 3 and 40, which may be primary ( ie ROH), secondary (ie RR'OH) or tertiary (ie RR'R''OH), linear or cyclic, and may also be optionally substituted by one or more substituents, g) Amines with a carbon atom number comprised between 0 ( ie ammonia) and 40, which may be primary ( ie RNH ² ), secondary ( ie RR'NH) or tertiary ( ie RR'R ''NH), linear or cyclic, and in addition they may be optionally substituted by one or more substituents, or any of their salts,
[0090] h) Aldehydes ( ie chemical compound containing at least one aldehyde functional group) with a carbon atom number comprised between 1 and 40, optionally substituted by one or more substituents,
[0091] i) Epoxides with a number of carbon atoms between 8 and 40, linear or cyclic, which may also be optionally substituted by one or more substituents,
[0092] j) Spiroacetals and dioxide compounds, of general formulas
[0093]
[0094]
[0095]
[0096] Y
[0097]
[0098] with a number of carbon atoms between 7 and 40,
[0099] k) Sulfur compounds, which contain at least one sulfur atom in its skeleton, or any of its salts.
[0100] l) Ethers, linear or branched, containing at least one oxygen atom, and optionally having a cyclic or heterocyclic structure, eg ethyl furfuryl ether, or
[0101]
[0102] any of its mixtures.
[0103]
[0104] Said one or more substituents, particularly, the R, R 'and R "radicals described above, are independently selected from the group consisting of optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, heteroaryl optionally substituted, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl or optionally substituted silyl, wherein said one or more optional substituents in turn are independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, acyl, carboxyl, halide, hydroxyl, ether, nitro, cyano, amido, amino, acylamido, acyloxide, thiol, thioether, sulfoxide, sulfonyl, thioamido, sulfonamido or silyl.
[0105]
[0106] By "alkyl group" is meant, in the context of the present invention, any straight or branched chain monovalent saturated hydrocarbon, which may optionally be cyclic or include cyclic groups, which may optionally include in its backbone one or more heteroatoms selected from nitrogen, oxygen or sulfur, and which may be optionally substituted by one or more substituents selected from halogen, hydroxyl, alkoxy, carboxyl, carbonyl, cyano, acyl, alkoxycarbonyl, amino, nitro, mercapto and alkylthio Examples of alkyl groups include, but are not limited to methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, fe / f-butyl, n-pentyl, cyclopentyl, cyclohexyl or cycloheptyl.
[0107]
[0108] In the present invention, "aryl group" is understood to mean an aromatic hydrocarbon preferably containing a number of carbon atoms comprised between 3 and 12 carbon atoms, more preferably between 6 and 12 carbon atoms, such as, for example, cyclopropenyl, phenyl, tropyl, indenyl, naphthyl, azulenyl, biphenyl, fluorenyl or anthracenyl This aryl group may be optionally substituted by one or more substituents selected from alkyl, haloalkyl, aminoalkyl, dialkylamino, hydroxyl, alkoxide, phenyl, mercapto, halogen, nitro, cyano or alkoxycarbonyl Optionally, said aryl group can include in its backbone one or more heteroatoms selected from nitrogen, oxygen or sulfur.
[0109]
[0110] Preferably, said at least one semiochemical agent is selected from the group consisting of 3-methyl-6-isopropenyl-9-decenyl acetate, (Z) -3-methyl-6-isopropenyl-3,9-decadienyl acetate, (E, Z) -7,9-dodecadienyl acetate, (Z) -9-dodecenyl acetate, (3E, 8Z, 11Z) -tetradecatrienyl acetate ( ie commonly known as TDTA), (Z) -9-hexadecenal , (Z) -11-hexadecenal, (Z) -13-octadecenal, (E, Z) -7,9-dodecadien-1-ol, (3S, 6ES) -3-methyl-6-isopropenyl-9-decen -1-yl, trimethylamine hydrochloride, 1,4-butanediamine ( ie commonly known as putrescine), 3-methyl-2-butenoate (S) -5-methyl-2- (prop-1-en-2-yl) ) -4-hexenyl, [(1E, 3E) -3-isopropenyl-2,2-dimethylcyclobutyl] methyl-3-methyl-3-butanoate, (1E, 3E) - (+) - cis-2,2-dimethyl -3-isopropenylcyclobutanemethanol, (S) -2-methylbutanoate of [(E) -2,2-dimethyl-3- (1-methylethylidene) cyclobutyl] methyl, 2 - [(1E, 2S) -c / 's acetate -2-isopropenyl-1- (4'-methyl-4'-pentenyl) -cyclobutane] ethyl, 3,3,7-trimethyl-2,9-dioxatricyclo [3.3.1.04,7] nonane or ammonium acetate io
[0111]
[0112] Said semi-chemical compounds can be dispensed in the pure state ( ie undiluted, in the case of liquid semiochemical compound), or be dissolved in a solvent, which it contributes to carry out the dragging of the semiochemical itself, notwithstanding that the solvent can be a semiochemical in turn. In this second case, the dilution is considered as an additional factor that must be taken into account, in addition to the speed of passage through the regulation means of passage, or for example, the thickness of said medium, at the time of determining the emission speed. All these aspects are particularly relevant in a particular embodiment, in which the diffusing semiochemicals are gases such as ammonia and its derivatives, or for example, gases that are generated by decomposition or hydrolysis of salts.
[0113]
[0114] The toxic compound can be selected from the group consisting of insecticides that act on the growth and development of insects ( eg juvenile hormone mimetic insecticides or inhibitors of chitin biosynthesis), insecticides that act on the nervous or muscular system of insects ( eg acetylcholinesterase inhibitors), insecticides that act on insect respiration ( eg inhibitors of mitochondrial ATP-synthase), insecticides that act on the digestive system of insects ( eg, microbial disruptors of insect digestive membranes), insecticides with mode of unknown or uncertain action as non-specific inhibitors ( ie multi-site inhibitors) or any of their combinations.
[0115]
[0116] Preferably, said one or more toxic compounds belong to the family of chemical compounds called pyrethroids. These pyrethroids are synthetic chemical compounds that have a chemical structure similar to that of pyrethrins, which are organic compounds found in certain flowers in a natural way, eg plants of the genus Chrysantemum, such as Chrysanthemum cinerariaefolium. Pyrethroids are more toxic than pyrethrins, and have a relatively short persistence. In the insect act by contact and ingestion, on the central nervous system, exciting the insect at the muscular level and finally producing death by muscle contraction.
[0117]
[0118] Illustrative examples of known pyrethroids that can be used as said one or more toxic agent include, but are not limited to:
[0119] a) N-Phenoxybenzyl 3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate, known as permethrin,
[0120] b) (1RS) -cis, trans-3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropane carboxylate of (RS) -cyano-3-phenoxybenzyl, known as cypermethrin,
[0121] c) Cypermethrin isomers, such as:
[0122] i. deltamethrin,
[0123] ii. alphacypermethrin,
[0124] iii. betacypermethrin, or
[0125] iv. zetacypermethrin,
[0126] d) (1 RS, 3RS) -3 - [(Z) -2-chloro-3,3,3-trifluoropropenyl] -2,2-dimethylcyclopropanecarboxylate of (RS) -a-cyano-3-phenoxybenzyl, known as cyhalothrin ,
[0127] e) Cyhalothrin isomers such as lambda-cyhalothrin,
[0128] f) 2-methyl-3-phenylbenzyl (1RS) -cis-3- (2-chloro-3,3,3-trifluoro-1-propenyl) -2,2-dimethylcyclopropanecarboxylate, known as bifenthrin,
[0129] g) (S) -2- (4-chlorophenyl) -3-methylbutyrate of (S) -a-cyano-3-phenoxybenzyl, known as esfenvalerate,
[0130] h) W- [2-chloro-4- (trifluoromethyl) phenyl] -DL-valinate of (RS) -a-cyano- (3-phenoxyphenyl) methyl, known as fluvalinate, and
[0131] i) (1R) -cis, trans-chrysanthemate of (RS) -3-allyl-2-methyl-4-oxocyclopenten-2-yl, known as allethrin.
[0132]
[0133] Alternatively, other compounds such as organophosphorus compounds, carbamates, neonicotinoids, diamides, benzoylureas, pyrroles, avermectins or any of their mixtures can also be used in the device of the present invention as said one or more toxic agents.
[0134]
[0135] Said toxic compounds can be dispensed in the pure state ( ie undiluted, in the case of liquid semiochemical compound), or be dissolved in a solvent, which contributes to carrying out the entrainment of the semiochemical itself. In this second case, dilution is a factor that must be taken into account in determining the emission rate.
[0136]
[0137] Since usually said toxic compounds are not of a significantly volatile nature, in a preferred embodiment these compounds are used, in the context of the present invention, dissolved in a solvent. Thus, it is favored that the impregnation of said at least one regulating medium through these toxic compounds be continuous, since the solvent exerts a drag function of these non-volatile or very little volatile compounds, thus ensuring a controlled replenishment of toxic compounds on the surface of the regulating medium of passage, to which the attracted arthropods will approach, thus causing their death.
[0138]
[0139] Optionally, the device of the present invention may comprise an amount of one or more compounds selected from the group comprising antioxidants, agents repellents, UV radiation protectants or colorants, wherein said amount of one or more compounds is in a proportion comprised between 0.1: 1 and 1000: 1 by weight with respect to the total weight of each of the control agents.
[0140]
[0141] On the other hand, the regulating means of passage defines a specific surface of controlled release and / or supply of said at least two control agents. The regulation of the emission is crucial to maximize the capture of the arthropods, both for monitoring techniques and in techniques of attraction and affectation, and consequently, to guarantee the success of the possible treatments or techniques applied to combat certain insect pests.
[0142]
[0143] Preferably, said at least one passage regulating means can be a membrane. More preferably, said at least one passage regulating means is a membrane that at least partially covers the surface of the device, and that can be linked to said one or more fluidic communication means, thus defining a release surface and / or controlled supply of said at least two control agents. Still more preferably, said at least one passage regulating means is a membrane that completely covers the surface of the device, and that can be linked to said one or more fluidic communication means, thus defining a controlled release and / or delivery surface of said at least two control agents. This membrane can be glued or glued, or alternatively, heat sealed, to the surface of the device, although only the emission of the control agents will be carried out in the membrane portion that is linked to the one or more media of fluid communication . In a preferred embodiment, said membrane is heat sealed to the surface of the device.
[0144]
[0145] The selection of said regulating means can also exert a significant effect on the emission rates, which are also defined by the very nature of said at least two control agents ( eg evaporation, compound in pure liquid state, compound in solution, mixtures) .
[0146] Said at least one regulating means of passage of said two or more control agents used in the present device of the invention is preferably made of a material selected from polymers, copolymers, cellulose derivatives, polymeric matrices, synthetic fibers or any of their mixtures .
[0147]
[0148] More preferably, said at least one passage regulating means is made of a material selected from polymers, copolymers or any of their mixtures. In a way still more preferred, said at least one passage regulating means is made of a material selected from cellulose acetate, cellulose acetate butyrate, cellulose triacetate, polyvinyl acetate, polyvinyl alcohol, butyl rubber, ethylene-propylene rubber, natural rubber, nitrile rubber ( ie acrylonitrile-butadiene rubber), cellophane, celluloid, polyvinyl chloride, cyclic olefin copolymer, ethylene-tetrafluoroethylene copolymer, ethynyl vinyl acetate copolymer, styrene-butadiene copolymer, copolymer thermoplastic polyurethane, polyamide-polyether copolymer, polyester copolymer, polyamides, polychloroprene, polyethylene terephthalate, polyacrylic acid, polyacrylonitrile, polybutadiene, polybutylene, polycaprolactone, polystyrene, polyethylene glycol, polyethylene, polypropylene, polyurethane, poloxamers, resins, silicones or any of its mixtures Even more preferably, said at least one passage regulating means is made of a material that is selected from the group consisting of cellulose acetate-butyrate, polyvinyl acetate, butyl rubber, ethylene-propylene rubber, nitrile rubber, polyvinyl chloride, polyamide-polyether copolymer, polyacid lactic acid, polybutadiene, polycaprolactone, polyethylene, polypropylene, polyethylene terephthalate, polyurethane, poloxamers, resins, silicones or any of their mixtures.
[0149]
[0150] In a preferred embodiment, said at least one passage regulating means is configured to release and / or supply in a controlled manner said at least two control agents with an average flow of each of them comprised between 1 ng / day and 10 g / day. More preferably, said at least one passage regulating means is configured to release and / or supply in a controlled manner said at least two control agents, wherein said at least one semiochemical and said at least one toxic compound are released at different speeds each. In a particular form of the invention, said at least one passage regulating means is configured to release and / or supply in a controlled manner said at least one semiochemical with an average flow comprised between 1 ng / day and 1 g / day, and said at least one toxic compound with an average flow comprised between 1 ng / day and 5 g / day. Still more preferably, said at least one passage regulating means is configured to release and / or supply in a controlled manner said at least one semiochemical compound with an average flow of between 1 ng / day and 500 mg / day, and said at less a toxic compound with an average flow between 1 ng / day and 1 g / day. Even more preferably, said at least one passage regulating means is configured to release and / or supply in a controlled manner said at least one semiochemical compound with an average flow comprised between 1 ng / day and 10 mg / day, and said at less a toxic compound with an average flow between 1 ng / day and 25 mg / day.
[0151] The selection of the material of said regulating medium is essential to obtain a given emission rate in a substantially constant manner, thus allowing a supply maintained over time that contributes to ensure the effectiveness of the treatments, ie the diffusion of the compounds throughout the period required to apply the attraction and death technique, or monitoring, until its completion.
[0152]
[0153] On the other hand, the thickness of this is also important to achieve the desired diffusion rate of the chemical and semiochemical compounds towards the outside. Thus, in particular, said at least one passage regulating means can have a thickness comprised between 1 pm and 25 mm. More preferably, said passage regulating means has a thickness comprised between 20 pm and 200 pm, and still more preferably, said passage regulating means has a thickness comprised between 20 pm and 100 pm.
[0154]
[0155] On the other hand, said at least one passage regulating means may be in the form of a sheet ( ie film), perforated in its entire surface or partially, or in the form of a perforated sheet ( ie perforated film ) in the entirety of its surface or partially, with any of the above mentioned materials, or any of their mixtures.
[0156]
[0157] In particular, said at least one passage regulating means may comprise a plurality of pores with a diameter comprised between 1 pm and 1 mm.
[0158]
[0159] In a preferred embodiment, said at least one passage regulating means of the invention has a thickness comprised between 20 pm and 200 pm; more preferably, said thickness is between 20 pm and 100 pm.
[0160]
[0161] It will be apparent to the person skilled in the art that it is possible to use highly volatile control agents. Alternatively, the semiochemicals can be emitted in the form of dilution with a non-volatile substance, such as paraffin, achieving an exponential emission rate. Therefore, in a preferred embodiment, a plurality of flow regulating means can be combined or superimposed, which can be made of different materials and have different thicknesses, depending on the desired emission / diffusion rate and the properties of the agents of control in use.
[0162]
[0163] Optionally, the device described herein may comprise an amount of one or more compounds selected from the group comprising antioxidants, repellents, UV protectors ( ie photoprotectors), penetrating agents or dyes, wherein said amount of one or more compounds is in a proportion comprised between 0.1: 1 and 1000: 1 by weight with respect to the total weight of each of the control agents. The use of antioxidants and UV radiation protectors is particularly advantageous when the device of the invention is used with at least one volatile semiochemical compound, since this type of products are unstable due to their structure, and tend to degrade in the presence of UV light and the Oxigen.
[0164]
[0165] Since these devices of the present invention are especially intended for use in the control of arthropods in crops, in a preferred embodiment they comprise means of attachment or suspension. This allows, for example, its placement on a branch of a tree, a fence, a wire, etc. depending on the technical needs of each treatment.
[0166]
[0167] The device of the present invention is also particularly safe, from the point of view of its manipulation by the technician or manipulating agent that transports and / or places the device at the point of use, since it comprises means for activating said device at the point of use. less a regulating means of passage configured for controlled action, thus avoiding direct contact with toxic chemical compounds, and therefore potentially harmful to health, since they are configured to confine the control agents until the moment of controlled action .
[0168]
[0169] Thus, the device of the present invention comprises means for activating said at least one step regulating means configured for controlled action, wherein said controlled actuation can be a manual or automatic action.
[0170]
[0171] Preferably, said controlled actuation can be an automatic electromechanical actuation. An example of means of activating said at least one step regulator, configured for its automatic operation can be, but not limited to, an automatic regulating valve that effects a controlled and periodic release of the control agents, from said at least one container (2, 2 ') towards said at least one passage regulating means.
[0172]
[0173] In a particularly preferred embodiment, said activation means are configured for manual controlled action, and comprise an aluminum foil or film , which at least partially covers the outer surface of the device of the present invention. In a still more preferred embodiment, said activation means configured for its operation manually controlled comprise an aluminum foil or film , which at least partially covers the outer surface of the device and in turn comprises a flange configured to extract or peel said aluminum foil or film from the device, thus allowing the initiation of controlled release and / or controlled supply of said at least two control agents.
[0174]
[0175] Optionally, in addition, the device of the present invention may comprise one or more outer surfaces of a suitable color to produce a chromatic synergistic effect on the attraction of arthropods. In this way, it is possible to attract the objective arthropod both by the attraction of the control agents, and by means of a color of the outer surface that is especially attractive for the insect, causing it to approach and thus pass under the effects of the agents issued. These colors are usually blue, red, white and yellow, the latter being especially preferred.
[0176]
[0177] The numerous advantages offered by the devices of the present invention will be evident to the expert in the field, both from the point of view of the effectiveness of the monitoring, disruption, massive capture or attraction and affectation techniques, as well as the safety of the applicator. , or of an economic aspect, due to the saving in the amount of semiochemical compounds, particularly pheromones and / or toxic compounds used, together with the undoubted environmental benefits derived from these advantages.
[0178]
[0179] A second aspect of the present invention relates to the use of the device of the present invention for the control of arthropods, which comprises a controlled release and / or controlled delivery of at least two arthropod control agents simultaneously, of which at minus one is a semiochemical compound and at least one is a toxic compound.
[0180]
[0181] In a preferred form of said use, said controlled release and / or controlled delivery of at least two arthropod control agents simultaneously occurs with an average flow of each of them comprised between 1 ng / day and 10 g / day . The average flow of each of said at least two control agents, particularly said at least one semiochemical and said at least one toxic compound may be different from each other, so in a still more preferred form, said at least one The semiochemical compound is released and / or delivered in a controlled manner with an average flow of between 1 ng / day and 1 g / day, and said at least one toxic compound is released and / or delivered in a controlled manner with an average flow of between 1 g / day and 1 g / day. ng / day and 5 g / day. Even more preferably, this use comprises a controlled release and / or controlled supply of said at least one semiochemical with an average flow of between 1 ng / day and 500 mg / day, and said at least one toxic compound with an average flow of between 1 ng / day and 1 g / day.
[0182]
[0183] Throughout the description and the claims, the word "comprises" and variations of the word such as "contains" are not intended to exclude other technical characteristics, additives, components or steps. Other additional features and advantages, derived from the controlled release device and / or controlled delivery of at least two simultaneous control agents of the invention, as well as from their use for the control of arthropods described herein, will be evident from the description of a preferred, non-limiting embodiment, which is described below and illustrated in the accompanying drawings. Additionally, the invention covers all possible combinations of the particular and preferred embodiments of the present document.
[0184]
[0185] BRIEF DESCRIPTION OF THE DRAWINGS
[0186]
[0187] Figure 1. First frontal view of a device for the controlled release and / or controlled delivery of at least two control agents simultaneously for the control of arthropods, according to the present invention (activation means not shown in the figure) .
[0188] Figure 2. Second front view of a device for the controlled release and / or controlled delivery of at least two control agents simultaneously for the control of arthropods, according to the present invention, according to an embodiment comprising a medium Activation configured for manual operation.
[0189] Figure 3. Side view of a device for the controlled release and / or controlled delivery of at least two control agents simultaneously for the control of arthropods, according to the present invention, in an inactive state.
[0190] Figure 4. Side view of a device for the controlled release and / or controlled delivery of at least two control agents simultaneously for the control of arthropods, according to the present invention, in active state.
[0191]
[0192] Description of a preferred embodiment
[0193] In Figures 1-4, and the numbering adopted therein, a preferred embodiment of the invention can be observed, which comprises the parts and elements that are indicated and described in detail below.
[0194]
[0195] As can be seen in Figures 1-4, an embodiment of the device (1) for the controlled release and / or controlled delivery of at least two control agents (not shown in the figure) simultaneously for the control of arthropods , of which at least one is a semiochemical compound and at least one is a toxic compound, comprises two containers (2, 2 ') containing the control agents, a regulatory means of passage (3) of said two or more agents of control, and activation means (4) of said passage regulating means (3).
[0196]
[0197] Additionally, each of the containers (2, 2 ') comprises a fluidic communication means (5, 5') with said passage regulating means (3). Said fluidic communication means (5, 5 ') are configured to facilitate the transfer of fluids, particularly, of the control agents used for controlled release and / or controlled delivery, from each of the containers (2, 2') to the regulating means of passage (3). Said at least one passage regulating means (3) defines a controlled release and / or delivery surface of said at least two control agents, and has a thickness comprised between 1 pm and 25 mm. As is clear from the description, said passage regulating means (3) is preferably a membrane that at least partially covers the surface of the device, and which can be linked to the one or more fluidic communication means (5, 5 ') .
[0198]
[0199] Said device is configured to release and / or supply in a controlled manner said at least two control agents with an average flow of each of them comprised between 1 ng / day and 10 g / day.
[0200] In this preferred embodiment of the invention, furthermore, as exemplified in Figure 1, this device comprises means of hooking or suspension (6, 6 ') of the device (1), intended to facilitate its placement at the point of use, eg a branch of a tree, a post, a fence or a wire, depending on the technical solution required according to the target arthropod species, whether for attraction and death treatment or for monitoring.
[0201]
[0202] As seen in Figure 2, the device of this preferred embodiment comprises activation means (4) that allow transporting said device to the point of use with total safety, avoiding the leakage of any of the toxic chemical compounds and / or semiochemicals, and also reducing the risk of contact with such products for the personnel in charge of its handling. Said activation means (4) comprise, in this preferred embodiment, an aluminum foil or film that at least partially covers the outer surface of the device, and which in turn comprises a flange (7) configured to extract or peel said foil or aluminum film of the device manually, thus allowing the initiation of controlled release and / or controlled delivery of said at least two control agents.
[0203]
[0204] Figures 3 and 4 show two side views of the device of the present invention, wherein the first shows the device of the invention, according to this preferred embodiment, in an inactive state, that is, without having carried out the controlled actuation of the means of activation (4) of said passage regulating means (3), which in this case correspond to an aluminum foil or film that at least partially covers the outer surface of the device (1). On the other hand, Figure 4 shows another side view of the same device, in an active state, that is to say, after having carried out the controlled actuation of the activation means (4), which corresponds to extracting or stripping the sheet or film from aluminum covering at least partially the outer surface of the device (1).
[0205]
[0206] The details, shapes, dimensions and other accessory elements used in the manufacture of the device for the controlled release and / or controlled delivery of at least two control agents simultaneously for the control of arthropods of the invention may be conveniently substituted. by others that do not depart from the scope defined by the claims that are included below.
[0207] Examples
[0208]
[0209] Ex. 1 - Evaluation in the laboratory of the effect of the toxic control agent - Evaluation of the initial toxic effect
[0210]
[0211] The initial insecticidal effect provided by the control devices was evaluated ("time = 0 days"), being the deltamethrin toxic control agent and using different step regulators, as detailed in TABLE 1. The devices were loaded with a solution of limonene as solvent and with the following toxic composition and optional additives expressed in m / m: toxic agent (0.5%), antioxidant agent (0.1%), penetrating agent (0.15%), protector of UV radiation and photoprotector (0.15%). It is considered the initial insecticidal effect ("time = 0 days") that is obtained when the devices have lost 5% of their initial load in weight, so that the agent toxic control has already been in contact with the entire surface of the flow regulator.
[0212]
[0213] Methodology:
[0214]
[0215] The mortality trials were carried out in the Center of Agricultural Chemistry Ecology (CEQA) of the Polytechnic University of Valencia (UPV) and were carried out on two species of arthropods: Aonidiella aurantii (Hemiptera: Diaspididae) and Ceratitis capitata (Diptera: Tephritidae ). In the case of A. aurantii, males emerged from infested lemons from the Insectarium of the Plant Protection Section (Generalitat Valenciana), located in Almassora (Castellón). In the trials with C. capitata individuals from the colony that is kept in the same CEQA were used.
[0216]
[0217] - Aonidiella aurantii: The mortality evaluation protocol used is the following: 10 males of A. aurantii are deposited, with the help of a fine brush, on each of the devices detailed in Table 1, contained inside a Petri dish, and contact with them is allowed for 10 seconds. After that time, the males are deposited in new Petri dishes. Subsequently, the number of males that died 1, 3 and 24 h after contact with the device is counted. The experiment is carried out in triplicate with each of the devices to be evaluated.
[0218] - Ceratitis capitata: The mortality evaluation protocol used is the following: 10 individuals (5 females and 5 males) of C. capitata, previously asleep with cold, are deposited, on each of the devices detailed in Table 1, inside small methacrylate cages, and contact with them is allowed for 10 minutes. seconds. After that time, the device is removed and the individuals are kept in the cage. Subsequently, the number of flies that have died 1, 3 and 24 h after contact with the device is counted. The experiment is carried out in triplicate with each of the devices to be evaluated.
[0219]
[0220] The percentage of average mortality provided by each of the devices was compared by means of an analysis of variance (ANOVA, LSD test for comparison of means, P <0.05). Previously, the data underwent the angular transformation (asin (Vx)) to homogenize the variance.
[0221]
[0222] Results:
[0223]
[0224] The results shown in Table 1 indicate that the invention allows the toxic control agent to act on the arthropods studied and provide an effective insecticidal effect with mortality values greater than 90% with all the pass agents evaluated. There are no significant differences with respect to the control consisting of a deltamethrin formulation that impregnates a PET film, both to affect males of A. aurantii (F = 0.38, gl = 4.10, P = 0.82), as to the individuals of C. capitata (F = 0.88, gl = 4.10, P = 0.51).
[0225]
[0226] Table 1. Characteristics of the devices tested and results of the mortality tests that evaluate the initial effect of the toxic control agent
[0227]
[0228]
[0229] Ex. 2 - Evaluation in the laboratory of the effect of the toxic control agent - Evaluation of the toxic effect over time
[0230]
[0231] The insecticidal effect provided by the control devices was evaluated, with the same characteristics as those detailed in Example 1, after having been exposed to real field conditions for 100, 200 and 400 days.
[0232]
[0233] Methodology:
[0234]
[0235] The exact same methodology that was described in Example E1.1 was followed, but with devices aged in the field.
[0236]
[0237] Results:
[0238]
[0239] The results shown below indicate that the invention allows the regulation and replenishment of the toxic control agent so that it does not significantly lose the toxicity effect on the arthropods studied. In contrast, the impregnated formulation used as a reference control did significantly lose efficacy of affectation for A. aurantii after 400 days of exposure under real field conditions (F = 3.18, df = 4.10, P = 0.063). In the case of C. capitata, the reduction in efficacy is observed even after 200 days of aging (F = 3.63, df = 4.10, P = 0.045), but it is more pronounced at 400 days (F = 6.45, gl = 4.10, P = 0.008).
[0240]
[0241] Table 2. Results of the mortality trials that evaluate the effect of the toxic control agent over time on (A) the males of Aonidiella aurantii and (B) individuals of Ceratitis capitata. The toxic control agent is deltamethrin and various examples of step regulators of the invention were used (PE: polyethylene, PP: polypropylene, PEBA: block polyether amide, PO: microporous polyolefin). The results were compared with a control that consisted of a PET sheet impregnated also with deltamethrin. Bars with different letters differ significantly (ANOVA-LSD test, P <0.05).
[0242]

权利要求:
Claims (12)
[1]
A device (1) for the controlled release and / or controlled delivery of at least two control agents simultaneously to combat arthropods, of which at least one is a semiochemical and at least one is a toxic compound, characterized in that it comprises at least one container (2, 2 ') containing the control agents, at least one passage regulating means (3) of said two or more control agents, and an activation means (4) of said at least one medium Step regulator (3), where:
- said at least one container (2, 2 ') comprises one or more fluid communication means (5, 5') configured to allow the transfer of fluids between said at least one container (2,
[2]
2 ') and said at least one passage regulating means (3), - said at least one passage regulating means
[3]
(3) defines a controlled release and / or delivery surface of said at least two control agents, and
- said activation means
[4]
(4) are configured for controlled action.
Device according to claim 1, wherein said at least one passage regulating means (3) is made of a material selected from polymers, copolymers, cellulose derivatives, polymeric matrices, synthetic fibers or any of their mixtures.
Device according to claim 2, wherein said at least one passage regulating means (3) is made of a material selected from cellulose acetate, cellulose acetate butyrate, cellulose triacetate, polyvinyl acetate, polyvinyl alcohol, butyl rubber, ethylene-propylene rubber, natural rubber, nitrile rubber, cellophane, celluloid, polyvinyl chloride, cyclic olefin copolymer, ethylene tetrafluoroethylene copolymer, ethynyl vinyl acetate copolymer, styrene-butadiene copolymer, thermoplastic polyurethane copolymer, copolymer polyamide-polyether, polyester copolymer, polyamides, polychloroprene, polyethylene terephthalate, polyacrylic acid, polyacrylonitrile, polybutadiene, polybutylene, polycaprolactone, polystyrene, polyethylene glycol, polyethylene, polypropylene, polyurethane, poloxamers, resins, silicones or any of their mixtures.
Device according to any of claims 1-3, wherein said at least one Step regulating means (3) is configured to release and / or supply in a controlled manner said at least two control agents with an average flow of each of them comprised between 1 ng / day and 10 g / day.
[5]
Device according to any of claims 1-4, wherein said at least one passage regulating means (3) has a thickness comprised between 1 pm and 25 mm.
[6]
Device according to any of claims 1-5, wherein said at least one passage regulating means (3) has a thickness comprised between 20 pm and 200 pm.
[7]
Device according to any of claims 1-6, wherein said controlled activation means (4) are configured for controlled action, wherein said controlled actuation is a manual actuation or an automatic actuation.
[8]
Device according to any of claims 1-7, comprising means of hooking or suspension (6, 6 ') of the device (1).
[9]
9. Device according to any of claims 1-8, comprising one or more exterior surfaces of a suitable color to produce a chromatic synergistic effect in attracting arthropods.
[10]
10. Device according to any of claims 1-9, comprising an amount of one or more compounds selected from the group comprising antioxidants, repellents, UV radiation protectants, penetrating agents and colorants, wherein said amount of one or more compounds is in a proportion comprised between 0.1: 1 and 1000: 1 by weight with respect to the total weight of each of the control agents.
[11]
11. Use of a device as defined in claims 1-10, characterized by controlled release and / or controlled delivery of at least two arthropod control agents simultaneously, of which at least one is a semiochemical compound and at least one is a toxic compound.
[12]
12. Use according to claim 11, wherein said controlled release and / or controlled delivery of at least two arthropod control agents simultaneously occurs with an average flow of each of them comprised between 1 and 2. ng / day and 10 g / day.
Ċ

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ES2701604B2|2019-08-14|

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AU2018320427A1|2020-04-02|

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MA51706A|2020-07-01|

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ES201731048A|ES2701604B2|2017-08-25|2017-08-25|Device for the controlled release and / or controlled supply of control agents to combat arthropods, and uses thereof|ES201731048A| ES2701604B2|2017-08-25|2017-08-25|Device for the controlled release and / or controlled supply of control agents to combat arthropods, and uses thereof|

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EP18804032.3A| EP3673733A1|2017-08-25|2018-08-23|Device for the controlled release and/or controlled delivery of control agents for combating arthropods, and uses thereof|

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AU2018320427A| AU2018320427A1|2017-08-25|2018-08-23|Device for the controlled release and/or controlled delivery of control agents for combating arthropods, and uses thereof|

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PCT/ES2018/070568| WO2019038462A1|2017-08-25|2018-08-23|Device for the controlled release and/or controlled delivery of control agents for combating arthropods, and uses thereof|

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