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CN-121985878-A - Microencapsulated pheromone preparation

CN121985878ACN 121985878 ACN121985878 ACN 121985878ACN-121985878-A

Abstract

Described herein are compositions comprising microencapsulated pheromones. Also described herein are methods of preparing compositions comprising microencapsulated pheromones. Also described herein are methods of controlling pests with the compositions.

Inventors

  • C. Manz Enshuti

Assignees

  • 富美实农业解决方案公司

Dates

Publication Date
20260505
Application Date
20240604
Priority Date
20230605

Claims (15)

  1. 1. A composition comprising: Antifreezing agent, and A microcapsule, the microcapsule comprising: A core, the core comprising: Pheromone and Solvent and A shell encapsulating the core; Wherein the microcapsules have a d90 value of at least about 30 μm.
  2. 2. The composition of claim 1, wherein the microcapsules have: d90 values of about 30 μm to about 60 μm, preferably about 35 μm to about 50 μm; D50 value of about 15 μm to about 25 μm, and/or D10 value of about 2 μm to about 7 μm.
  3. 3. The composition of any of claims 1-2, wherein the composition further comprises an adjuvant selected from the group consisting of dispersants, surfactants, emulsifiers, wetting agents, biocides, defoamers, antifreeze agents, rheology modifiers, solvents, stabilizers, UV absorbers, salts, excipients, antioxidants, and combinations thereof.
  4. 4. A composition according to any one of claims 1-3, wherein the composition is an agrochemical composition, preferably in a form selected from a premix and a tank mix (tank mix).
  5. 5. The composition of any one of claims 1-4, wherein the composition is in the form of a CS formulation or a ZC formulation.
  6. 6. The composition of any of claims 1-5, wherein the shell comprises a material selected from the group consisting of synthetic polymers, polyureas, polyurethanes, polyacrylates, polyamides, polyvinyl alcohols, polyvinylpyrrolidone, polycarbonates, polythiocarbonates, semisynthetic materials, modified celluloses, modified starch derivatives, natural materials, gum arabic, agar, dextrins, alginic acid, alginates, biodegradable natural polymers, collagen, polysaccharides, starches, dextrins, waxes, chitosan, alginates, celluloses, gelatins, derivatives thereof, and combinations thereof.
  7. 7. The composition of any one of claims 1-6, wherein the pheromone is selected from the group consisting of aldehyde pheromones, acetate pheromones, alcohol pheromones, ketone pheromones, epoxide pheromones, hydrocarbon pheromones, ester pheromones, and combinations thereof.
  8. 8. The composition of any one of claims 1-7, wherein the pheromone is selected from the group consisting of: (Z) -5-decenyl acetate, dodecyl acetate, (Z) -7-dodecenyl acetate, (E) -7-dodecenyl acetate, (Z) -8-dodecenyl acetate, (E) -8-dodecenyl acetate, (Z) -9-dodecenyl acetate, (E) -9-dodecenyl acetate, 10-dodecenyl acetate, 11-dodecenyl acetate, (Z) -9, 11-dodecenyl acetate, E) -9, 11-dodecenyl acetate (Z) -11-tridecenyl acetate, (E) -11-tridecenyl acetate, tetradecyl acetate, (E) -7-tetradecenyl acetate, (Z) -8-tetradecenyl acetate, (E) -8-tetradecenyl acetate, (Z) -9-tetradecenyl acetate, (E) -9-tetradecenyl acetate, (Z) -10-tetradecenyl acetate, (E) -10-tetradecenyl acetate, (Z) -11-tetradecenyl acetate, E) -11-tetradecenyl acetate, (Z) -12-pentadecenyl acetate, cetyl acetate, (Z) -7-hexadecenyl acetate, (Z) -11-hexadecenyl acetate, (E) -11-hexadecenyl acetate, stearyl acetate, (E, Z) -7, 9-dodecenyl acetate, (Z, E) -7, 9-dodecenyl acetate, (E, E) -7, 9-dodecenyl acetate, (Z, Z) -7, 9-dodecenyl acetate, 8, 10-dodecenyl acetate, 9, 12-dodecenyl acetate, (E, Z) -9, 12-dodecenyl acetate, 4, 7-tridecenyl acetate, 9, 11-tetradecadienyl acetate, (Z, Z) -9, 12-tetradecadienyl acetate, 7, 11-hexadecadienyl acetate, E, Z) -7, 11-hexadecadienyl acetate, Z) -8, 10-dodecenyl acetate, 9, 12-dodecenyl acetate, 4, 7-tridecenyl acetate, 9, 11-tetradecadienyl acetate, 11-hexadecadienyl acetate, E, 3, Z) -3, 11-hexadecadienyl acetate, 3-hexadecenyl acetate, E, 3-hexadecenyl acetate, (Z) -5-decenyl 3-methylbutyrate, (+) cis-7, 8-epoxy-2-methyl octadecane, (E, Z) -2, 4-decadienoic acid methyl ester, 2,6, 10-trimethyltridecanoic acid methyl ester, and combinations thereof.
  9. 9. The composition of any of claims 1-8, wherein the antifreeze is selected from the group consisting of propylene glycol, glycerin, glycol, ethylene glycol, 1, 2-butanediol, 1, 3-butanediol, 2, 3-butanediol, 1, 4-butanediol, methanol, ethanol, propanol, butanol, and combinations thereof.
  10. 10. The composition of any one of claims 1-9, wherein the solvent is selected from the group consisting of hydrophobic solvents, high flash point solvents, methylated seed oils, methyl oleate methyl ester oils (methyl oleate METHYL ESTER oil), methyl linoleate methyl ester oils (methyl linoleate METHYL ESTER oil), mineral oils, paraffinic oils, tall oil fatty acid based solvents, aromatic ester solvents, polybutenes, fatty acid methyl esters, tributyl 2-acetyl citrate (tributyl 2-ACETATE CITRATE), alkylamides, benzyl acetate, wax esters, and combinations thereof.
  11. 11. A method of preparing a composition, the method comprising: Forming a mixture comprising: Antifreezing agent, and A microcapsule, the microcapsule comprising: A core, the core comprising: Pheromone and Solvent and A shell encapsulating the core; Wherein the microcapsules have a d90 value of at least about 30 μm.
  12. 12. The method of claim 11, wherein the method further comprises encapsulating the pheromone and the solvent in the microcapsules prior to forming the mixture.
  13. 13. A method of controlling a pest, the method comprising contacting the pest or its environment with a biologically effective amount of a composition comprising: Antifreezing agent, and A microcapsule, the microcapsule comprising: A core, the core comprising: Pheromone and Solvent and A shell encapsulating the core; Wherein the microcapsules have a d90 value of at least about 30 μm.
  14. 14. The method of claim 13, wherein the pest is selected from the group consisting of invertebrate pests, insects, arthropods, and combinations thereof.
  15. 15. The method of any one of claims 13-14, wherein the environment is selected from the group consisting of a farm, an orchard, a forest, and combinations thereof.

Description

Microencapsulated pheromone preparation Cross Reference to Related Applications The present application claims priority from U.S. provisional patent application No. 63/471,196, filed on 5, 6, 2023, the contents of which are incorporated herein by reference. Technical Field Described herein are compositions comprising microencapsulated pheromones. Also described herein are methods of preparing compositions comprising microencapsulated pheromones. Also described herein are methods of controlling pests with the compositions. Background Pheromone compositions are difficult to formulate for a number of reasons, including reaction with other ingredients in the formulation matrix, degradation of the pheromone over time, and unfavorable release rates of the pheromone from the formulation. This is especially the case where pheromones are active agrochemical ingredients and must be delivered over time at some release rate. Thus, there is a need in the art for compositions comprising pheromones with improved release rates and degradation properties. Microencapsulation provides a means of formulating pheromones for large area applications for controlling insect populations by disrupting pheromone-mediated communications. Microencapsulation also helps control the volatility of pheromones. However, despite the prior demonstration of microencapsulation of pheromones, there remains a need for improved formulations comprising microencapsulated pheromones. The present disclosure provides formulations comprising microencapsulated pheromones. The formulation has improved properties compared to conventional formulations comprising microencapsulated pheromones. The present disclosure enables pheromone formulations that can be used in sprayable agricultural formulations. Such sprayable formulations are essential for application of row crop (row crop). Formulations comprising microencapsulated pheromones according to the present disclosure can be prepared by known interfacial polymerization methods, and they can be applied over a large area with conventional spray equipment. They have a number of variables that can be manipulated to control the release characteristics (wall composition, wall thickness, wall size and internal composition). Disclosure of Invention In one embodiment, the present disclosure relates to a composition comprising an antifreeze agent, and microcapsules comprising a core comprising a pheromone, and a solvent, and a shell encapsulating the core, wherein the microcapsules have a d90 value of at least about 30 μm. In another embodiment, the present disclosure relates to a method of preparing a composition comprising forming a mixture comprising an antifreeze agent, and microcapsules comprising a core comprising a pheromone, and a solvent, and a shell encapsulating the core, wherein the microcapsules have a d90 value of at least about 30 μm. In another embodiment, the present disclosure is directed to a method of controlling a pest comprising contacting the pest or its environment with a biologically effective amount of a composition comprising an anti-freezing agent, and microcapsules comprising a core comprising a pheromone, and a solvent, and a shell encapsulating the core, wherein the microcapsules have a d90 value of at least about 30 μm. Detailed Description This written description uses examples to disclose the disclosure, including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any compositions or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to fall within the scope of the claims if they have elements that do not differ from the literal language of the claims, or if they include equivalent elements with insubstantial differences from the literal languages of the claims. As used herein, the terms "comprise," "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," "characterized by" or any other variation thereof, are intended to cover a non-exclusive inclusion, which is subject to any limitation explicitly indicated. For example, a composition, mixture, process, or method that comprises a list of elements is not necessarily limited to only those elements, but may include other elements not expressly listed or inherent to such composition, mixture, process, or method. The transitional phrase "consisting of" excludes any element, step, or ingredient not specified. If in a claim, this would enclose the claim as excluding impurities that would normally accompany the claim, other materials than those listed in the claim. When the phrase "consisting of" appears in the clause of the subject matter of the claims, rather than immediately after the preamble, it only limits the elements set forth in that clause, and other elements are n