WO2017121881A1 - Methodes et compositions pour le controle des fourmis champignonnistes - Google Patents
Methodes et compositions pour le controle des fourmis champignonnistes Download PDFInfo
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- WO2017121881A1 WO2017121881A1 PCT/EP2017/050726 EP2017050726W WO2017121881A1 WO 2017121881 A1 WO2017121881 A1 WO 2017121881A1 EP 2017050726 W EP2017050726 W EP 2017050726W WO 2017121881 A1 WO2017121881 A1 WO 2017121881A1
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- ants
- laccase
- cysteine
- thymol
- eugenol
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/002—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing a foodstuff as carrier or diluent, i.e. baits
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
- A01N31/16—Oxygen or sulfur directly attached to an aromatic ring system with two or more oxygen or sulfur atoms directly attached to the same aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
- A01N37/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/08—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings with oxygen as the ring hetero atom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/02—Sulfur; Selenium; Tellurium; Compounds thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/22—Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/24—Lauraceae [Laurel family], e.g. laurel, avocado, sassafras, cinnamon or camphor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/28—Myrtaceae [Myrtle family], e.g. teatree or clove
Definitions
- the invention relates to the field of pest control. It proposes a new method of fight against the ants champignonnists as well as a new formicidal composition able to destroy specifically the colonies of mushroom ants.
- the present invention also provides a method for preparing such a composition or kit for use in said method.
- Ants of the "leaf cutter” ants type are mainly found in Central and South America.
- the main characteristic of the Attini tribe, including Atta or Acromyrmex genera, is the fact that it cultivates, within the anthill, a basidiomycete saprophytic fungus of the species Leucoagaricus gongylophorus. Ants grow while the fungus provides nutrients for the colony by breaking down complex, non-ants-like molecules (Richard et al, 2005).
- the fungus fed with raw material by the ants, can also be a source of nutrition since some authors have observed that the fungus was consumed by certain ants (Qinlan et al., 1978, Fisher et al., 1994) and the fungus is a source of enzymes ensuring the degradation of the plant material.
- Leaf-cutting mushroom ants are a pest for agricultural and forestry crops. Indeed, they are found without predators when they invade monocultures developed by humans (phenomenon accentuated with deforestation) which leads to a strong unregulated presence. They collect leaves, flowers, fruits and seeds and ravage most agricultural crops: food crops (cassava, sweet potato, corn, breadfruit ...), fruit trees (lemon, orange, mango, avocado ...
- the damage caused by the mushroom ants represents 30% of the management costs of eucalyptus crops in Brazil.
- a mature colony can destroy 3 tonnes of sugar cane a year, an estimated loss of $ 60 million.
- the annual damage is estimated at several million dollars while they are several hundred million dollars in the state of Sao Paulo (Brazil).
- aldrin 1, 2,3,4,10,10-hexachloro-1,4,4a, 5,8,8a-hexahydro-1,4-endo, exo-5,8-dimetha-nonaphthalene
- Mirex® (1, 1 a, 2,2,3,3a, 4,5, 5, 5a, 5b, 6-dodecachlorooctahydro-1 H-1, 3, 4-methanetriyl) cyclobuta [cc] pentalene
- Local means also include the use of repellent plants to keep away the nests of mushroom ants. Such use, however, has reduced effectiveness and have no impact on the nest or colony.
- the present invention provides a novel method and associated composition for targeting the colony and its environment rather than the ant itself.
- laccase is an enzyme widely expressed in mushroom ants and in the grinding wheel and that a composition comprising a laccase inhibitor or having a laccase inhibitory activity causes, in a few days, the abandonment of the nests located around the location of the bait.
- a composition comprising a laccase inhibitor supplemented with an antibacterial compound having bactericidal or bacteriostatic activity against actinomycetes (or comprising a compound exhibiting laccase inhibitory activity and antibacterial activity against actinomycetes) destroys colonies around the location of baits without re-occurring colonies.
- muscle ants ants belonging to the tribe of Attini and in particular to the genera Atta or Acromyrmex. These ants have the particularity of cultivating within the anthill, a basidiomycete saprophytic fungus of the species Leucophorus gongylophorus. The ants ensure its growth while the fungus ensures the supply of nutrients for the colony by degrading complex molecules. Within this family, ants belonging to the genus Atta or Acromyrmex form a subcategory called leafcutter ants.
- the most represented species are Acromyrmex heyeri, Acromyrmex echinatior, Acromyrmex lobicornis, Acromyrmex crassispinus, Acromyrmex laticeps, Acromyrmex striatus, Acromyrmex monday, Acromyrmex octospinosus, Acromyrmex rugosus, Acromyrmex subterraneus brunneus, Acromyrmex subterraneus molestans, Acromyrmex subterraneus subterraneus, Acromyrmex volcanoes, Acromyrmex Balzani , Atta capiguara, Atta cephalotes, Atta colombica, Atta sexdens, Atta sexdens srubropilosa, Atta laevigata, Atta bisphaerica, Atta texana and Atta nnenider
- anthill and “nest” can be used interchangeably here. They correspond to the structure housing the colony of mushroom ants.
- Colony is meant a group of ants, other than a single pair, including at least one queen, building nests to raise offspring in a cooperative manner.
- grinding wheel also called “mushroom garden” (ie fungus garden) in the literature, it is necessary to understand here the fungal structure cultivated by the mushroom ants and composed mainly of the saprophytic basidiomycete fungus of the species Leucophorus gongylophorus growing on the plant material harvested by the ants.
- formicidal composition is meant a composition formulated to specifically target ants.
- the formicidal composition according to the invention will not cause the death of bees or other arthropods.
- the formicidal composition according to the invention may cause abandonment of the nest by the colony of mushroom ants or the destruction of said colony.
- the expression “antibacterial compound” corresponds here to a compound having a bactericidal or bacteriostatic activity.
- bactericidal activity is used in the case where the compound is capable of killing the bacterium while the term “bacteriostatic activity” corresponds to an inhibition of the growth of the bacterium.
- the same antibacterial compound may have a bactericidal or bacteriostatic effect on the same bacterial strain depending on its concentration.
- Actinomycetes means any bacteria belonging to the group of actinomycetes. Actinomycetes are generally aerobic Gram positive bacteria. The most common actinomycetes found in relation to field ants are Pseudonocardia and Streptomyces. Bacteria belonging to the genera Gordonia, Tsukamurella, Amycolatopsis, Kribbella, and Nocardioides can also be found.
- Laccase enzymes of the polyphenol oxidase type. They degrade lignin and provide protection against toxicity some polyphenols. In the nomenclature for enzymes, laccases are grouped under code EC 1 .10.3.2.
- laccase inhibitor or “compound exhibiting laccase inhibitory activity” is meant a compound inhibiting laccase activity as measured, for example, by ABTS (2,2'-azino-bis (3-ethylbenzene) -thiazoline-6-sulfonic acid) according to the method published by Bourbonnais et al (1990).
- antioxidant molecule By “antioxidant molecule”, it is necessary to understand the common sense given to this term, namely a molecule capable of reducing or preventing the oxidation of other chemical substances.
- the antioxidant potential of a molecule can be verified for example via the use of ABTS radicals (Bourbonnais et al., 1990).
- laccase is an enzyme widely expressed in mushroom ants as well as in the grinding wheel and that a composition comprising a laccase inhibitor causes, in a few days, the abandonment of the nests. located around the location of the compositions or the destruction of these nests
- the invention relates to a method of controlling ants mushroom including the use of at least one laccase inhibitor.
- laccase inhibitors There is a wide variety of laccase inhibitors. The skilled person can select a laccase inhibitor through routine tests such as that presented in the examples and based on the method published by Bourbonnais et al (1990).
- a laccase inhibitor any molecule which, in the context of the method mentioned above, causes a decrease of the activity of the laccase more than 50%, preferably more than 75%, more preferably more than 90%.
- these inhibitions of laccase activity are obtained at concentrations below 5 mM. Even more preferably, these inhibitions of laccase activity are obtained at concentrations below 1 mM.
- All antioxidant molecules have the ability to inhibit the activity of a laccase. Nevertheless, there are laccase inhibitors that do not exhibit antioxidant activity.
- chelants, detergents, non-oxidizing organic acids and cationic metals it is possible to mention chelants, detergents, non-oxidizing organic acids and cationic metals.
- the following molecules are also molecules exhibiting anti-laccase activity without being antioxidant molecules: ethylene diamine tetraacetic acid (EDTA), calcium chloride (CaC), rhodotorulic acid, enterobactin, thioglycolic acid, diethyldithiocarbamic acid, azide sodium, cetyltrimethylammonium bromide, Fe 2+ , Cu 2+ , Ag + , Li + , Sn + , Hg + , Mn 2+ , Zn 2+ , Al 3+ , sodium lauryl sulphate, sodium cyanide (NaCN), thiosulphate sodium, oxalic acid, beta-mercaptoethanol.
- EDTA ethylene diamine tetraacetic acid
- CaC calcium chloride
- rhodotorulic acid enterobactin
- thioglycolic acid diethyldithiocarbamic acid
- azide sodium cetyltrimethylam
- the method of combating the field ants comprises the use of at least one laccase inhibitor selected from: an antioxidant molecule, a chelator, a detergent, a non-oxidizing organic acid and a cationic metal.
- Preferred molecules for use as a laccase inhibitor are:
- EDTA EDTA
- rhodotorulic acid enterobactin
- the laccase inhibitor is an antioxidant molecule.
- antioxidant molecules are generally known to those skilled in the art (Lu et al., 2010). It will also be possible to verify this activity via conventional tests for measuring the antioxidant potential such as that described in Bourbonnais et al. (1990).
- the molecules exhibiting anti-laccase activity and antioxidant activity may for example be selected from: ascorbic acid (E300), citric acid (E330), coumaric acid, ferulic acid, gallic acid, palmityl 6-1-ascorbic acid ( E304), syringic acid, sodium / calcium / potassium ascorbates (E301) / (E302) / (E303), butylhydroxyanisole (BHA), butylhydroxytoluol, cysteine, octyl gallstones (E31 1) or dodecyl (E312), glutathione sodium lactate (E325), potassium (E326) or calcium (E327), lecithin (E322), lipoate, carotenoids (E160) such as lutein, luteolin, carotenes such as lycopene, sodium tartrates (E335) / potassium (E336) or sodium and potassium (E337), sodium thiosulfate, vitamin E (natural tocopherol
- the laccase inhibitor is selected from one of the following compounds: ascorbic acid, citric acid (E330), coumaric acid, palmityl 6-1-ascorbic acid (E304), sodium / calcium / potassium ascorbates (E301 ) / (E302) / (E303), cysteine, octyl (E31 1) gallates or dodecyl (E312), glutathione, sodium (E325), potassium (E326) or calcium (E327) lactates, lecithins ( E322), caratenoids (E160) such as lutein, luteolin, carotenes such as lycopene, sodium tartrate (E335) / potassium (E336) or sodium and potassium tartrate (E337), sodium thiosulfate, vitamin E (natural tocopherols (E306)), synthetic ⁇ -tocopherol (E307), synthetic ⁇ -tocopherol (E308) and synthetic ⁇ -tocopherol (E309)
- the laccase inhibitor preferably has little impact on the environment and is rapidly degraded.
- the laccase inhibitor is selected from one of the following compounds: ascorbic acid, sodium ascorbates / calcium (E301) / (E302), sodium lactate (E325), potassium (E326) or calcium (E327), lutein, lycopene, sodium tartrate (E335) / potassium (E336) or sodium and potassium tartrate (E337), sodium thiosulfate, vitamin E (natural tocopherols (E306)), synthetic ⁇ -tocopherol (E307) ), synthetic ⁇ -tocopherol (E308) and synthetic ⁇ -tocopherol (E309), cysteine and glutathione.
- the laccase inhibitor is selected from one of the following compounds: L-cysteine, coumaric acid, glutathione, sodium thiosulfate, ferulic acid, syringic acid, ascorbic acid, gallic acid.
- the preferred molecules are natural or easily degradable molecules and thus respect the environment unlike the most common insecticides.
- the laccase inhibitor is selected from one of the following compounds: L-cysteine, glutathione, sodium thiosulfate, ferulic acid, syringic acid, ascorbic acid, gallic acid.
- the laccase inhibitor is selected from L-cysteine, ascorbic acid, sodium thiosulfate or glutathione. This laccase inhibitor is used at a concentration sufficient to cause inhibition of laccase activity in the grindstone and ants.
- the method of combating the field ants according to the invention comprises at least the use of a laccase inhibitor selected from glutathione, L-cysteine, sodium thiosulfate and ascorbic acid.
- the use of a composition comprising a laccase inhibitor is sufficient to destroy the ant nest by causing the disappearance of the millstone and the colony.
- the use of a composition comprising at least one laccase inhibitor causes the nest to be abandoned, but a new nest can be reconstructed near the abandoned nest.
- the inventors have also isolated many actinomycetes from the cuticle of the mushroom ants. Following these observations, they showed that a composition comprising at least one laccase inhibitor supplemented with at least one antibacterial compound having a bactericidal or bacteriostatic activity against actinomycetes can destroy colonies around the location of baits and this without recurring colonies.
- the addition of at least one antibacterial compound makes it possible to increase the effect of the laccase inhibitor and affects the grinding wheel and then results in the destruction of the colony.
- the combination of a laccase inhibitor with an antibacterial molecule having a bactericidal and / or bacteriostatic activity against actinomycetes makes it possible on the one hand to optimize the disappearance of the colony and on the other hand to avoid the appearance of new colonies. This is especially true when the treatment is applied before swarming. Indeed the destruction of the nest will not allow the flight (swarming) of winged ants at the origin of the foundation of new colonies thus limiting their spread.
- the invention relates to a method for controlling ants that includes the use of at least one laccase inhibitor and at least one antibacterial compound or comprising a laccase inhibitory activity and an antibacterial activity. .
- an antibacterial molecule having a bactericidal and / or bacteriostatic activity against actinomycetes, can allow the destruction of the nest of the mushroom ants.
- the invention relates to a method for controlling ants mushroom including the use of at least one antibacterial molecule having a bactericidal and / or bacteriostatic activity against actinomycetes.
- the invention is characterized in that the antibacterial compound is an antibiotic.
- the antibiotic can be selected from the following classes of antibiotics: ⁇ -lactams, aminoglycosides, macrolides and the like, glycopeptides, tetracyclines and quinolones.
- this antibiotic can be selected from the following list: chloramphenicol, erythromycin, josamycin, tetracycline, gentamycin, streptomycin, and penicillin.
- the inventors have identified natural compounds derived from plants having bacteriostatic or bactericidal activity against actinomycetes isolated from the ant cuticle. These natural compounds derived from plants have the advantage of being rapidly degraded and present for the most part a bactericidal or bacteriostatic activity against the target actinomycetes as strong as that of an antibiotic.
- the preferred molecules are natural or easily degradable molecules and thus respect the environment unlike the most common insecticides or antibacterials.
- the antibacterial compound used is not an antibiotic used in therapy (human or animal).
- the exclusion of such an antibiotic is intended to limit the potential emergence of resistance having a consequence on therapeutic strategies.
- the antibacterial compound used is a natural molecule extracted from the plant. This antibacterial compound is used pure or may be present in a mixture of compounds in an essential oil.
- the invention is characterized in that the antibacterial compound is selected from the following list: carvacrol, thymol, eugenol, cinnamaldehyde, ⁇ -terpineol, terpinene-4-ol.
- the antibacterial compound is selected from the following list: carvacrol, thymol, eugenol and cinnamaldehyde.
- the antibacterial compound according to the invention may also be characterized in that it consists of an essential oil selected from the following essential oils: Oregano, Marjoram, Thyme, Clove, Cinnamon, Tea Tree (Malaleuca alternifolia) , Pine, Geranium, Lemon, Lemongrass and Garlic.
- an essential oil selected from the following essential oils: Oregano, Marjoram, Thyme, Clove, Cinnamon, Tea Tree (Malaleuca alternifolia) , Pine, Geranium, Lemon, Lemongrass and Garlic.
- the antibacterial compound is selected from the following list of essential oil: Oregano, Thyme, Clove and Cinnamon.
- This antibacterial compound is used at a concentration sufficient to cause bactericidal and / or bacteriostatic activity against actinomycetes in the grindstone and ants.
- This concentration can be determined by those skilled in the art by means of conventional tests for evaluating the minimal inhibitory concentration or the minimum bactericidal concentration such as those used in the examples.
- compositions according to the invention because, having both a laccase inhibitory activity and an antibacterial activity, they make it possible to act on the two targets identified by the inventors for the fight against ants. mushroom.
- the compounds according to the invention exhibiting a laccase inhibitory activity and an antibacterial activity are selected from thymol and eugenol.
- the invention relates to a method of controlling leaf cutting mushroom ants belonging to the genera Atta or Acromyrmex comprising the use of at least one laccase inhibitor.
- the invention relates to a method for controlling leaf-cutting mushroom ants belonging to the Atta or Acromyrmex genera comprising the use of at least one antibacterial molecule having a bactericidal and / or bacteriostatic activity against actinomycetes.
- compositions or methods according to the invention can operate with one or more laccase inhibitors preferably in combination with one or more antibacterial compounds.
- the subject of the invention is an anti-mushroom ant control method comprising the use of a formicidal composition comprising at least one compound or a combination of compounds selected from:
- the invention relates to a method of controlling ants mushroom including the use of at least one appetizing oligosaccharide or polysaccharide.
- the invention relates to a method of controlling ants mushroom including the use of at least one oligosaccharide appetizer or polysaccharide in combination with at least one laccase inhibitor alone or in combination with at least one antibacterial compound.
- the subject of the invention is a method for controlling leaf-cutting mushroom ants belonging to the Atta or Acromyrmex genera comprising the use of at least one oligosaccharide or polysaccharide appetizer in combination with at least one laccase inhibitor. alone or in combination with at least one antibacterial compound.
- the oligosaccharide or polysaccharide appetizer may be chosen from: starch, amylose, amylopectin, cellobiose, glycogen, glucose, sucrose, laminarin ((1-3) -beta-D-glucan), maltodextrin, cyclodextrin polymers, polymers isomaltose, icodextrins, dextran, maltoheptose, maltohexose, maltopentaose, maltotetrose, maltotriose, maltobiosis and their derivatives.
- the oligosaccharide appetizer or polysaccharide is chosen from: starch, amylose, cellobiose, laminarin, maltodextrin, maltobiosis, glucose, sucrose and glycogen.
- the oligosaccharide appetizer or polysaccharide is selected from: starch, amylose, laminarin, maltodextrin and glycogen.
- the appetizer is starch.
- the appetizer is itself in the form of a composition and constitutes the majority element.
- starch is the major component of wheat flour.
- the appetizing concentration is in particular a function of the presence and the amount of laccase inhibitor and / or antibacterial agent.
- the amount of appetizer is between 600g / kg and 999g / kg; preferably between 800 g / kg and 999 g / kg, preferably between 850 g / kg and 990 g / kg, or even between 870 g / kg and 950 g / kg of the formicidal composition of the invention.
- the invention relates to a formicidal composition comprising at least one laccase inhibitor or at least one antibacterial compound or a combination of at least one laccase inhibitor and at least one antibacterial compound as active compounds. against the mushroom ants.
- these two compounds are the only active compounds against the ants champignonisses.
- the antibacterial compounds and the laccase inhibitors are the same (including the preferred compounds) as those described above with respect to the method of the invention.
- the concentration of antibacterial compound is between 1 and 200 g / kg of the formicidal composition of the invention.
- it is between 10 g / kg and 150 g / kg and more preferably between 50 g / kg and 120 g / kg of the formicidal composition of the invention.
- the concentration of laccase inhibitor is between 1 and 200 g / kg of the formicidal composition of the invention. It is preferably between 10 g / kg and 150 g / kg and more preferably between 50 g / kg and 120 g / kg of the formicidal composition of the invention.
- composition according to the invention may be a combination product of at least one laccase inhibitor and at least one antibacterial compound for simultaneous, spread or separate use over time.
- the composition according to the invention may comprise at least one compound having both ant laccase and grinding inhibitory activity and bactericidal and / or bacteriostatic activity against actinomycetes present in the grinding wheel and on the ants.
- the skilled person will readily know, on the basis of the method published by Bourbonnais et. al (1990) mentioned above and used in the experimental part, identify the bactericidal and / or bacteriostatic compounds that can be used against the actinomycetes present in the grindstone and on the ants having ant laccase and grinding inhibitory activity.
- composition according to the invention may also comprise at least one appetizer.
- the appetizer is an appetizing carbohydrate.
- the appetizer is more preferably selected from the oligosaccharide or polysaccharide appetizers described above relative to the method of the invention (including the preferred compounds).
- the invention relates to a formicidal composition as described above comprising starch as polysaccharide appetizer.
- the invention relates to a formicidal composition
- a formicidal composition comprising starch as a polysaccharide appetizer and at least one compound or combination of compounds selected from:
- the formicidal composition according to the invention does not include compounds targeting the insect nervous system (e.g., fipronil).
- composition according to the invention is specific to mushroom ants.
- this composition does not have an immediate effect.
- the compositions according to the invention are devoid of repulsive effect. Because of this effect "delay" and the absence of repellent effect, the composition is not necessarily dispersed on the colony. It can be placed in the fields to be protected or at the level of the harvesting columns. The ants musicians will bring the composition to the nest where it will be in contact with the whole colony and the mushroom. In this embodiment, the use of an appetizer is particularly advantageous.
- composition according to the invention may be dispersed directly on or around the nest when the latter is located (for example less than 5 meters) or preferably near the harvesting columns (for example less than 2 meters).
- composition according to the invention may be dispersed at once on or around the nest or near the harvesting columns.
- the composition according to the invention is dispersed regularly, in several times, on or around the nest or near the harvesting columns.
- Dispersions can be daily, or spaced 2, 3, 4, 5, or 6 days apart, or one, two, or three weeks apart.
- the method according to the invention may comprise the dispersion of 20 g to 500 g of formicidal composition according to the invention per day.
- the method according to the invention may comprise the dispersion of 10 g to 100 g of formicidal composition according to the invention per day, over 5 to 30 consecutive days.
- the method according to the invention may also comprise the dispersion of 100 g to 500 g, preferably 200 g to 500 g of formicidal composition according to the invention in one go.
- Figure 1 shows a measure of the anti-laccase activity of L-cysteine on a sample of grinding wheel (A) and ant (B).
- the grindings were made in mortars placed on ice, using pestles.
- the ants (2g) and the grind (2g) were milled in 10ml of distilled water chilled at 4 ° C. After obtaining a ground homogeneous texture, the whole was centrifuged. Centrifugation was performed at 4 ° C, 15,000 rpm for 20min. For protein precipitation, the supernatant was 80% saturated with ammonium sulfate ((NH) 2 SO 4 ). After total dissolution of the ammonium sulfate, the resulting solution is placed at 4 ° C for 12 hours. The solution was then centrifuged at 4 ° C at 15,000 rpm for 20 minutes.
- the pellet obtained is redissolved in a minimum of cold distilled water and dialyzed against 5 liters of distilled water at 4 ° C. for 12 hours.
- the extract thus obtained constitutes the crude enzymatic extract. These extracts were aliquoted and then stored at -20 ° C.
- the enzymatic activity was evaluated with respect to the degradation capacity of 16 substrates:
- Oligosaccharidase activity was determined by the glucose oxidase (GOD) assay method, according to Werner et al. (1970). Heterosidase activity was assessed indirectly by measuring the amount of para-nitrophenol (PNP) released, according to the method described by Nunan et al., (2015).
- GOD glucose oxidase
- PNP para-nitrophenol
- the proteins are assayed by the method using the BioRad® reagent. To achieve the standard range bovine serum albumin was used.
- the assay for laccase activity is based on a colorimetric method in which the substrate ABTS (2,2'-AZINO-bis (3-ETHYLBENZ-THIAZOLINE-6-SULFONIC ACID) in reduced form (colorless) is oxidized (green color) in the presence of the enzyme
- the method was published by Bourbonnais et al in 1990.
- the test molecule is added to the reaction mixture with amounts ranging from 0.1 mM to 100 mM
- the inhibitors chosen for the analyzes are compounds having an antioxidant power.
- the bacterial strains adhering to the ant cuticle were removed by using a dispersing solution corresponding to a 0.9% NaCl solution containing 10% Tween 80.
- the actinomycete strains were isolated by successive subcultures on agar NA media (composition: 2.5 g of K 2 HPO 4; 0.5 g of sodium nitrate, 7.5 g of agar, 2 g of N- acetyl-glucosamine, Qs 500 ml, pH 6.5) or PCA (composition: casein peptone 5.0 g, yeast extract 2.5 g, D (+) - glucose 1.0 g, agar 14.0 g; Qsp1000 ml pH 7) and verification of the morphology by optical microscopy.
- agar NA media composition: 2.5 g of K 2 HPO 4; 0.5 g of sodium nitrate, 7.5 g of agar, 2 g of N- acetyl-glucosamine, Qs 500 ml, pH 6.5
- PCA composition: casein peptone 5.0 g, yeast extract 2.5 g, D (+) - glucose 1.0 g, agar 14.0
- the culture was incubated with shaking at 27 ° C overnight. After bacterial growth, samples of 2 ml of culture were taken on each sample and placed respectively in eppendorf tubes and then centrifuged at 10,000 g for 10 min. Bacterial lysis was performed using FastPrep®-24 (MP Biomedicals) and the "Powerbead" tubes included in the kit. The conditions were as follows: Frequency 4.0 ms-1, time 45 s. The PowerSoil DNA isolation kit (Mobio Laboratories) was used to extract the total DNA from pellets obtained after centrifugation. The protocol applied is the one recommended by the supplier. The DNA was eluted in 70 ⁇ l of Tris-HCl buffer provided with the kit. The concentration of total DNA extracted was determined spectrophotometrically using Nanodrop and stored at -20 ° C before further analysis.
- a region specific for the 16S rRNA gene specific to bacteria was amplified by PCR under the following conditions:
- the primers used were: 27F and 1390R (Mao et al 2012). Verification of the amplicons was done by electrophoresis on 1% agarose gel (weight / volume of 0.5X TAE buffer) containing 0.5X Sybersafe. The presence of the bands was visualized by exposing the gel to ultraviolet (UV) light.
- UV ultraviolet
- the measurement of the antibacterial activity can be carried out in a liquid medium (in a liquid bacterial culture) or in a solid medium (on a petri-agar plate) by adding a known concentration of antibiotic.
- a liquid medium in a liquid bacterial culture
- a solid medium on a petri-agar plate
- OD Optical Density
- solid medium the inhibition of the growth is estimated by the diameter of the halo corresponding to the zone where no growth is observed.
- a sample is taken. This is suspended in 1 ml of physiological saline without measuring the OD.
- Seeding is carried out with 100 ⁇ of suspension using a rake.
- a disc soaked in the essential oil is placed in the center of the box.
- both discs are placed in the same box. Dilutions were made by diluting the essential oils in sunflower oil.
- a control box was made and consists of an inoculum in the absence of essential oil.
- a second witness this time with a disc impregnated with sunflower oil was also performed to verify the absence of an effect. All the products were sterilized and the experiments carried out under hood in sterile conditions.
- Erythromycin is a macrolide antibiotic that has a similar or slightly broader antimicrobial spectrum than penicillins. This molecule serves as a reference.
- pellets Two days after having deposited the pellets, the nests are visited for the first time then at 4, 6, 8, 9, 10, 12 and 14 days.
- pellets (10 g) placed in a small plastic bag were deposited near a dome. At each visit the bag is replaced whether or not the pellets were harvested by the ants.
- the pellets impregnated with ascorbic acid or sodium thiosulphate are alternated at each visit.
- a test of activity of the colony is carried out using a wooden rod. This is pushed into the ground at different places around the cone and when no resistance is felt it means that the rod is pressed at the cavity containing the wheel. In a few seconds dozens of ants disturbed by the introduction of the stem in the cavity of the grinding wheel back along the stem thus attesting to the vitality of the colony. 1 .3.2.2. Anti-laccase + antibacterial
- the pellets may also contain a mixture of anti-laccase and antibacterial molecule.
- compositions tested Several compositions according to the invention have been tested:
- compositions took place as mentioned in point 1 .3.1.
- Each active compound was present at 10% of the composition (by weight of the composition), the remainder consisting of a wheat flour paste.
- compositions mentioned above were tested on two or three nests. At each nest were deposited at once 5 sachets each containing 25 g of one of the compositions mentioned above.
- laccases or polyphenol oxidases catalyze the oxidation of phenolic substances (Thurston, 1994).
- laccases in addition to their oxidative action on polyphenolic compounds would also have a detoxifying role vis-à-vis the defensive substances of plants.
- L-cysteine causes, at concentrations greater than 0.5 mM, an inhibition of more than 80% of the activity ( Figure 1). Ascorbic acid and gallic acid, in turn, inhibit more than 90% of the activity at concentrations of 0.25 mM. With ferulic acid and syringic acid this percentage inhibition is obtained with a concentration of 0.5 mM (results not shown).
- This step made it possible to isolate, from ants belonging to the species Acromyrmex octospinosus, 15 strains of actinomycetes, 12 of which belong to the genus Tsukumurella, two to the genus Streptomyces and one to the genus Gordonia.
- a total of 5 strains belonging to the genera Streptomyces, Tsukumurella and Gordonia were selected for the analysis of antibacterial substances.
- composition comprising an anti-laccase molecule:
- composition comprising an anti-laccase molecule and an antibacterial molecule:
- the formicidal compositions comprising a laccase inhibitor, an antibacterial agent or bacteriostatic actinomycetes commensales mushroom ants or their combination are effective in the fight against the ants champignonnists by causing the abandonment and / or destruction of the nests.
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Abstract
Description
Claims
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| BR112018014280-8A BR112018014280B1 (pt) | 2016-01-15 | 2017-01-13 | Método e uso de inibidor de lacase para o controle de formigas cultivadoras de fungos |
| CR20180396A CR20180396A (es) | 2016-01-15 | 2017-01-13 | Métodos y composiciones para el control de las hormigas cultivadoras de hongos |
| US16/070,148 US10888089B2 (en) | 2016-01-15 | 2017-01-13 | Methods and compositions for controlling fungus-growing ants |
| MX2018008730A MX2018008730A (es) | 2016-01-15 | 2017-01-13 | Metodos y composiciones para el control de las hormigas cultivadoras de hongos. |
| CONC2018/0008396A CO2018008396A2 (es) | 2016-01-15 | 2018-08-10 | Métodos y composiciones para el control de las hormigas cultivadoras de hongos |
| ECSENADI201861449A ECSP18061449A (es) | 2016-01-15 | 2018-08-15 | Métodos y composiciones para el control de las hormigas cultivadoras de hongos |
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| FR1650318 | 2016-01-15 | ||
| FR1650318A FR3046716B1 (fr) | 2016-01-15 | 2016-01-15 | Methodes et compositions pour le controle des fourmis champignonnistes |
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| US (1) | US10888089B2 (fr) |
| CO (1) | CO2018008396A2 (fr) |
| CR (1) | CR20180396A (fr) |
| EC (1) | ECSP18061449A (fr) |
| FR (1) | FR3046716B1 (fr) |
| MX (1) | MX2018008730A (fr) |
| WO (1) | WO2017121881A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021089967A1 (fr) | 2019-11-08 | 2021-05-14 | Soleo Eco-Solutions | Preparation combinee et procede pour la lutte contre les fourmis champignonnistes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655240A1 (fr) * | 1989-12-01 | 1991-06-07 | Erpac | Procede de lutte contre les insectes champignonnistes et composition pour la mise en óoeuvre de ce procede. |
| RO107544B1 (ro) * | 1992-03-04 | 1996-03-29 | Ioan Manzatu | Cremă cosmetică |
| WO2012050857A1 (fr) | 2010-09-29 | 2012-04-19 | Smithsonian Institution | Procédé de lutte biologique contre les fourmis coupeuses de feuilles |
| US20150368649A1 (en) * | 2012-12-28 | 2015-12-24 | Universidade Federal Do Rio Grande Do Sul | Genetic control method and compositions against insect pests in cotton plants by the silencing of genes of the laccase family |
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| US20080193387A1 (en) * | 2007-02-14 | 2008-08-14 | Ricki De Wolff | Essential oil compositions for killing or repelling ectoparasites and pests and methods for use thereof |
| MX2010010216A (es) * | 2008-03-19 | 2011-02-22 | Tyratech Inc | Control de peste utilizando combinaciones de agentes de control de pestes. |
| US9487523B2 (en) * | 2012-03-14 | 2016-11-08 | Merck Sharp & Dohme Corp. | Process for making CGRP receptor antagonists |
| AU2015218714A1 (en) * | 2014-02-21 | 2016-10-06 | Emekatech, Llc | Systems for pest elimination, suppression or control |
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| FR2655240A1 (fr) * | 1989-12-01 | 1991-06-07 | Erpac | Procede de lutte contre les insectes champignonnistes et composition pour la mise en óoeuvre de ce procede. |
| RO107544B1 (ro) * | 1992-03-04 | 1996-03-29 | Ioan Manzatu | Cremă cosmetică |
| WO2012050857A1 (fr) | 2010-09-29 | 2012-04-19 | Smithsonian Institution | Procédé de lutte biologique contre les fourmis coupeuses de feuilles |
| US20150368649A1 (en) * | 2012-12-28 | 2015-12-24 | Universidade Federal Do Rio Grande Do Sul | Genetic control method and compositions against insect pests in cotton plants by the silencing of genes of the laccase family |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021089967A1 (fr) | 2019-11-08 | 2021-05-14 | Soleo Eco-Solutions | Preparation combinee et procede pour la lutte contre les fourmis champignonnistes |
| FR3102910A1 (fr) | 2019-11-08 | 2021-05-14 | SoléO Eco-Solutions | Preparation combinee et procede pour la lutte contre les fourmis champignonnistes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3046716A1 (fr) | 2017-07-21 |
| MX2018008730A (es) | 2019-05-27 |
| US10888089B2 (en) | 2021-01-12 |
| ECSP18061449A (es) | 2022-02-25 |
| CR20180396A (es) | 2019-02-08 |
| BR112018014280A2 (pt) | 2018-12-18 |
| US20190021315A1 (en) | 2019-01-24 |
| CO2018008396A2 (es) | 2018-10-31 |
| FR3046716B1 (fr) | 2019-06-28 |
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