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Nanoparticles compositions containing polymers and anthranilic acid diamide insecticides for propagule coating

An anthranilic acid diamide and a composition technology are applied in the directions of insecticides, biocides, animal repellents, etc., and can solve problems such as obstruction, difficulty in effective concentration of insecticides, etc.

Active Publication Date: 2014-08-20
CORTEVA AGRISCIENCE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although anthranilic diamides have properties that make them suitable for use in the protection of propagules and developing growth, achieving sufficient uptake of anthranilic diamide in propagules and developing roots will allow the developing plant in need of protection to It is difficult to obtain insecticidally effective concentrations within the fraction
Although the anthranilic diamide coating on propagules is exposed to moisture from the propagule and surrounding plant growth medium (such as soil), the low water solubility of anthranilic diamide insecticides hinders their movement through moisture

Method used

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  • Nanoparticles compositions containing polymers and anthranilic acid diamide insecticides for propagule coating
  • Nanoparticles compositions containing polymers and anthranilic acid diamide insecticides for propagule coating
  • Nanoparticles compositions containing polymers and anthranilic acid diamide insecticides for propagule coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0191] Example 1: A pesticide composition described in the Summary of the Invention comprising, by weight, based on the total weight of the composition:

[0192] (a) from about 0.25% to about 25% of one or more anthranilic diamide insecticides; and

[0193] (b) from about 2.5 to about 25% of a poly(lactic acid) polymer component having a water dispersibility of at least about 5% by weight at 20°C and an average molecular weight in the range of from about 700 to about 4,000 Daltons ;

[0194] wherein the ratio of component (b) to component (a) is from about 1:1 to about 1:10 by weight.

[0195] (c) about 20 to about 50% poly(lactate) having a solubility in water at 20°C of at least about 5% by weight, a hydrophilic-lipophilic balance of at least about 7, and an average molecular weight in the range of 12,000 to 65,000 ester-co-glycolide) (or acrylate / methacrylate-based polymer) / methyl poly(ethylene glycol) copolymer, wherein the ratio is poly(lactide-co-glycolide ) or acryla...

Embodiment 2

[0196] Embodiment 2: The composition of embodiment 1, wherein component (a) (i.e., one or more anthranilic diamide insecticides) comprises at least one compound selected from the group consisting of: Anthranilic acid diamide, its N-oxide and its salts,

[0197]

[0198] in

[0199] X is N, CF, CCl, CBr or CI;

[0200] R 1 for CH 3 , Cl, Br or F;

[0201] R 2 is H, F, Cl, Br or -CN;

[0202] R 3 For F, Cl, Br, C 1 -C 4 Haloalkyl or C 1 -C 4 Haloalkoxy;

[0203] R 4a for H, C 1 -C 4 Alkyl, cyclopropylmethyl or 1-cyclopropylethyl;

[0204] R 4b for H or CH 3 ;

[0205] R 5 is H, F, Cl or Br; and

[0206] R 6 is H, F, Cl or Br.

[0207] Notably, Yang and Sun (CN101607940, 2009) disclosed formulations of benzamide derivatives useful as insecticides for killing arthropods, wherein X is C. Accordingly, in addition to species wherein X=N, species of pesticides based on X=C, substituted or unsubstituted, are also contemplated within the embodiments of the inve...

Embodiment 3

[0208] Embodiment 3: The composition according to embodiment 2, wherein component (a) is selected from the group consisting of anthranilic diamides of formula 1, N-oxides thereof and salts thereof.

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Abstract

Disclosed is an insecticidal composition comprising by weight based on the total weight of the composition: (a) from about 0.25 to about 25% of one or more anthranilic diamide insecticides; (b) from about 2.5 to about 25% of a poly(lactic acid) polymer component having a water dispersabilitiy of at least about 5% by weight at 20 DEG C and an average molecular weight ranging from about 700 to about 4,000 daltons; wherein the ratio of component (b) to component (a) is about 1:1 to about 1:10 by weight; and (c) from about 20 to about 50% of a composition comprising either (i) a poly(lactide-co-glycolide) copolymer and a methyl poly(ethylene glycol) copolymer, or (ii) an acrylate / methacrylate-based polymer or copolymer and a methyl poly(ethylene glycol) copolymer; wherein the methyl poly(ethylene glycol) copolymer has a water solubility of at least about 5% by weight at 20 DEG C, a hydrophilic-lipophilic balance value of at least about 7, and an average molecular weight ranging from 12,000 to 65,000, and further wherein the ratio of the poly(lactide-co-glycolide) or the acrylate / methacrylate-based polymer or copolymer, to the methyl poly(ethylene glycol) is about 1:1 to about 4:1 by weight and the ratio of component (c) to component (b) is about 2:1 to about 9:1 by weight. Also disclosed is a geotropic propagule coated with the insecticidal composition. Further disclosed is a liquid composition comprising the insecticidal composition, and a method for protecting a geotropic propagule and plant derived therefrom from a phytophagous insect pest.

Description

technical field [0001] The present invention relates to compositions comprising anthranilic diamide insecticides and polymers in mixed form of nanoparticles. The invention also relates to the geotropic propagules coated with these compositions and to the protection of propagules and plants derived therefrom from phytophagous pests by bringing said propagules into contact with these compositions. Background technique [0002] The damage of phytotropic propagules, such as seeds, rhizomes, tubers, bulbs or corms, and plants derived therefrom by herbivorous pests causes significant economic losses. [0003] Anthranilic diamides, or anthranilamides, are a recently discovered class of insecticides that are active against many pests of economic importance. PCT Publication WO 03 / 024222 discloses the use of anthranilic diamide treatment for the protection of propagules from herbivorous invertebrate pests. Furthermore, due to the ability of anthranilic diamide to translocate within ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N25/24A01P7/04
CPCA01N43/56A01N25/10A01N25/24A01N2300/00
Inventor E.P.霍洛卡S.C.维拉卡斯
Owner CORTEVA AGRISCIENCE LLC
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