Search

CN-121985881-A - Compositions and methods for controlling insect infestation of plants

CN121985881ACN 121985881 ACN121985881 ACN 121985881ACN-121985881-A

Abstract

The present invention relates to a method of controlling or preventing infestation of plants by lepidopteran or coleopteran insects, comprising applying to the plants, locus thereof, or propagation material thereof, in any desired sequence or simultaneously, a combination or composition comprising as component (a) a compound having formula (a-1) and as component (B) a compound having formula (B-1). Compositions suitable for use in the present invention are also disclosed. (A-1) (B-1)

Inventors

  • M. Gabtue
  • D. Ivachi

Assignees

  • 先正达农作物保护股份公司

Dates

Publication Date
20260505
Application Date
20241004
Priority Date
20231004

Claims (13)

  1. 1. A composition comprising as component (a) a compound having formula a-1: (A-1; ring Ding Fulun) And as component (B) a compound having the formula B-1: (B-1; isoxazole tebufenozide), Wherein the weight ratio of (A) to (B) is 1000:1 to 1:1000, 500:1 to 1:500, 250:1 to 1:250, 125:1 to 1:125, 100:1 to 1:100, 50:1 to 1:50, 125:4 to 4:125, 25:1 to 1:25, 16:1 to 1:16, or 20:1 to 1:20, or preferably 10:1 to 1:10, 8:1 to 1:8, 6:1 to 1:6, or 5:1 to 1:5, more preferably between 4:1 to 1:4, between 10:3 to 3:10, between 3:1 to 1:3, between 2.5:1 to 1:2, between 5:3 to 3:5, between 8:5 to 5:8, between 1.5:1 to 1:5, between 4:3 to 3:4, between 4:4 to 5, or about 1:1.
  2. 2. A method of controlling or preventing infestation of plants by lepidopteran or coleopteran insects, said method comprising applying to the plants, locus thereof, or propagation material thereof, in any desired sequence or simultaneously, a combination or composition comprising as component (a) a compound having formula a-1: (A-1) and as component (B) a compound having the formula B-1: (B-1)。
  3. 3. The method according to claim 2, wherein the insect is selected from spodoptera littoralis, spodoptera frugiperda, plutella xylostella, cnaphalocrocis medinalis, codling moth, soybean looper, chilo suppressalis, corn borer, soybean spodoptera frugiperda and tomato spotted fly, preferably spodoptera littoralis.
  4. 4. The method according to claim 2, wherein the insect is selected from cucurbit, kohlrabi, potato beetle, preferably cucurbit.
  5. 5. The method of any one of claims 2 to 4, wherein the plant is selected from the group consisting of soybean, maize, cotton, rice, vegetables, cereals, pome fruit, stone fruit, citrus and potato.
  6. 6. The method of any one of claims 1 to 4, wherein the weight ratio of (a) to (B) is 2000 by weight: 1 to 1:2000, between 1000 and 1:1000, between 750 and 1:750, between 500 and 1:500, between 400 and 1:400, between 300 and 1:300, between 250 and 1:250, between 200 and 1:200, between 150 and 1:150, between 125 and 1:125, between 100 and 1:100, between 80 and 1:80, between 75 and 1:75, between 70 and 1:70, between 125 and 2:125, between 60 and 1:1:60, between 50 and 1:50, between 40 and 1:1:40, between 30 and 1:1 and 1:30, between 25 and 1:25, between 20 and 1:20, between 16 and 1:16, between 1 and 1:15, between 1 and 1:12, between 1 and 1:75, between 70 and 1:1:70, between 2 and 2:60, between 60 and between 50 and 1:1:50, between 40 and 1:1:40, between 30 and 1:1:30, between 1 and 1:30, between 25, between 20 and 1:20:1:20, between 16 and 1:16:1:15, between 1 and 1:12 and 1:1:1:1.5, between 1 and 1:10 and 1:10.5.1.5.1 and 1:1.5.5.1 and between 1.5.1 and 1:1.5.10.10.1 and between 1:1.5.5.5 Between 4:1 and 1:4, between 10:3 and 3:10, between 3:1 and 1:3, between 2.5:1 and 1:2.5, between 2:1 and 1:2, between 5:3 and 3:5, between 8:5 and 5:8, between 1.5:1 and 1:1.5, between 4:3 and 3:4, between 5:4 and 4:5, or about 1:1.
  7. 7. The method according to any one of claims 1 to 5, wherein the application rate of component (a) is 1 to 2000 g/ha, preferably 10 to 1000 g/ha, more preferably 20 to 200 g/ha or 50 to 100 g/ha, most preferably 60 to 75 g/ha, and the application rate of component (B) is 1 to 2000 g/ha, preferably 10 to 1000 g/ha, more preferably 20 to 200 g/ha or 50 to 100 g/ha, most preferably 60 to 75 g/ha.
  8. 8. A seed treatment composition comprising as component (a) a compound having formula a-1: (A-1) and as component (B) a compound having the formula B-1: (B-1)。
  9. 9. A method of controlling or preventing infestation of plants by lepidopteran or coleopteran insects, said method comprising applying to the seed, in any desired order or simultaneously, a compound having the formula a-1 as component (a): (A-1) and as component (B) a compound having the formula B-1: (B-1)。
  10. 10. The method according to claim 9, comprising applying to the seed 0.001-50 g component (a)/kg of seed, preferably 0.01-10 g/kg of seed, more preferably 0.05-1.25 g/kg of seed, most preferably 0.25-0.6 g/kg of seed, and/or 0.001-50 component (B)/kg of seed, preferably 0.01-10 g/kg of seed, more preferably 0.05-1 g/kg of seed, most preferably 0.1-0.8 g/kg of seed.
  11. 11. The composition according to claim 1 or 8, or the method according to any one of claims 2-7 or 9-10, wherein component a comprises at least 90%, and preferably at least 95%, of the S-enantiomer having formula (a-1 a): (A-1a)。
  12. 12. A coated plant propagation material, wherein the coating comprises a composition comprising as component (a) a compound having the formula a-1: (A-1) and as component (B) a compound having the formula B-1: (B-1)。
  13. 13. Use of a composition comprising as component (a) a compound having the formula a-1 for controlling or preventing infestation of plants, more particularly cotton or maize plants, by lepidopteran or coleopteran insects: (A-1) and as component (B) a compound having the formula B-1: (B-1)。

Description

Compositions and methods for controlling insect infestation of plants The present invention relates to compositions and methods for controlling or preventing infestation of plants such as maize or cotton by insects, particularly spodoptera littoralis (Spodoptera littoralis) and cucumber leaf beetles (Diabrotica balteata). Certain active ingredients and combinations of active ingredients for controlling pest infestation are described in the literature. There is a continuing need to provide combinations of pesticides that provide, for example, improved biological properties such as synergistic properties, particularly for controlling insect, acarina and nematode pests. These benefits may also be increased safety, improved physicochemical properties, or increased biodegradability. It has been found that specific combinations of active ingredients provide unexpected control or prevention of plant infestation when applied to plants, their locus, or propagation material thereof. More specifically, it has now been found that certain combinations are very effective in controlling or preventing infestation of plants by various insect pests of the orders Lepidoptera (Lepidoptera) and Coleoptera (Coleoptera), such as insects of the genus Spodoptera (Spodoptera), in particular Spodoptera littoralis, and insects of the genus phyllostachys (Diabrotica), in particular the species phyllostachys cucumeria. Accordingly, in one aspect, the present invention provides a composition comprising as component (a) a compound having formula a-1: (A-1; ring Ding Fulun) And as component (B) a compound having the formula B-1: (B-1; isoxazole tebufenozide), Wherein the weight ratio of (A) to (B) is 1000:1 to 1:1000, 500:1 to 1:500, 250:1 to 1:250, 125:1 to 1:125, 100:1 to 1:100, 50:1 to 1:50, 125:4 to 4:125, 25:1 to 1:25, 16:1 to 1:16, or 20:1 to 1:20, or preferably 10:1 to 1:10, 8:1 to 1:8, 6:1 to 1:6, or 5:1 to 1:5, more preferably between 4:1 to 1:4, between 10:3 to 3:10, between 3:1 to 1:3, between 2.5:1 to 1:2, between 5:3 to 3:5, between 8:5 to 5:8, between 1.5:1 to 1:5, between 4:3 to 3:4, between 4:4 to 5, or about 1:1. In another aspect, the present invention provides a method of controlling or preventing infestation of plants by lepidopteran or coleopteran insects, the method comprising applying to the plants, locus thereof, or propagation material thereof, in any desired sequence or simultaneously, a combination or composition comprising as component (a) a compound having formula a-1: (A-1) and as component (B) a compound having the formula B-1: B-1。 Reference to compounds having the formula a-1 (ring Ding Fulun) and formula B-1 (isoxazole tebufenozide) also includes agrochemically acceptable ionic forms, salts, solvates, isomers (including geometric and stereochemically isomeric forms), tautomers, N-oxides, esters, prodrugs, isotopes and protected forms thereof. Preferably, mention is made of compounds of formula A-1 and formula B-1 also including salts or tautomers or isomers or N-oxides or solvates thereof, and more preferably salts or tautomers or N-oxides or solvates thereof, even more preferably salts or tautomers or solvates thereof. Ring Ding Fulun comprises 80% -100% of N- [ (1 s,2 s) -2- (2, 4-dichlorophenyl) cyclobutyl ] -2- (trifluoromethyl) pyridine-3-carboxamide, shown below as compound having formula a-1a (hereinafter "(1 s,2 s) enantiomer"), and 20% -0% of the corresponding (1 r,2 r) -enantiomer, shown below as compound having formula a-1b (hereinafter "(1 r,2 r) enantiomer"). These enantiomers occur because the left-hand benzene ring and the right-hand pyridinyl-C (=o) -NH group are cis to each other on the cyclobutyl ring. According to the present application, the compound having formula a-1 may comprise at least 85%, preferably at least 90%, and more preferably at least 95% of N- [ (1 s,2 s) -2- (2, 4-dichlorophenyl) cyclobutyl ] -2- (trifluoromethyl) pyridine-3-carboxamide. (A-1a) (A-1b) In embodiments, the compositions and combinations of the present invention comprise a compound having formula A-1 in enantiomerically enriched form. In other words, the compositions and combinations of the present invention may contain an enantiomerically enriched mixture of the two enantiomers of this compound, namely (1S, 2S) enantiomer (A-1 a) and (1R, 2R) -enantiomer (A-1 b), wherein the proportion of (1S, 2S) enantiomer (A-1 a) is greater as defined herein. In embodiments, the compositions and combinations of the present invention comprise a compound having formula A-1 in enantiomerically pure form or in substantially enantiomerically pure form. For the purposes of the present invention, a "substantially enantiomerically pure compound having formula a-1" is understood to mean an enantiomeric purity of at least 85% of the enantiomer excess (ee), preferably at least 90% of the ee, more preferably at least 95% of the ee, at least 96% of the ee, even more preferably at least 97% of the ee and especially at least 98% of the