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CN-121970755-A - Synergistic acaricidal composition

CN121970755ACN 121970755 ACN121970755 ACN 121970755ACN-121970755-A

Abstract

The invention belongs to the technical field of pesticides, in particular relates to the technical field of pesticide compounding, and particularly relates to a synergistic acaricidal composition. The synergistic acaricidal composition comprises an active compound (A), a compound shown in formula Ia, (Formula Ia), and at least one active compound (B), wherein the active compound (B) is selected from the group consisting of imidacloprid, phoxim, dimethoate, pyridazine, carbofuran, monomethylamine, efficient chlorpyrifos, dithiocarbamate, sulfur, chlorpyrifos, propiconazole, efficient chlorpyrifos, and trifloxane Sulfiflumin、Spirobudifen、Mivorilaner、Modoflaner、Tigolaner、Umifoxolaner、Flupentiofenox。 The weight ratio of active compound (A) to active compound (B) is 1:100~100:1. This synergistic mite killing combination can effectively improve the control effect on harmful mites. Compared with a single agent, the synergistic effect is significant, which can effectively reduce the usage amount, lower the usage cost, and minimize the impact on the environment.

Inventors

  • FENG CONG
  • BAI WEI
  • Zhao Ruibian
  • WANG JINGWEN
  • FAN XINYU
  • KONG DAN
  • YANG YIYI
  • ZHAO YUQING

Assignees

  • 陕西上格之路生物科学有限公司

Dates

Publication Date
20260505
Application Date
20260324

Claims (9)

  1. 1. A synergistic acaricidal composition comprising an active compound (a) which is at least one compound of formula I: (formula I), In formula I above, R 1 、R 2 is each independently selected from hydrogen, halogen, cyano, C1-C4 alkyl, or C1-C4 haloalkyl; n is selected from 0 or 1; R 3 、R 4 、R 5 、R 6 is each independently selected from hydrogen, halogen, cyano, nitro, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, or C1-C4 haloalkoxy; and at least one active compound (B) selected from: Chlorfenapyr, phoxim, dimethoate, pyridaphethione, carbosulfan, formamidine, lambda-cyhalothrin, lime sulfur, chlorpyrifos, profenofos, lambda-cyhalothrin, trifloxystrobin and Sulfiflumin, spirobudifen, mivorilaner, modoflaner, tigolaner, umifoxolaner, flupentiofenox.
  2. 2. Synergistic acaricidal composition according to claim 1, characterized in that the active compound (a) is selected from the compounds of formula Ia: (formula Ia).
  3. 3. The synergistic acaricidal composition according to claim 2, wherein the weight ratio of the active compound (a) to the active compound (B) is 1:100 to 100:1.
  4. 4. A synergistic acaricidal composition according to claim 3 characterised in that the weight ratio of the active compound (a) to the active compound (B) is from 5:1 to 1:5.
  5. 5. An acaricide comprising an acaricide active ingredient and an adjuvant, wherein the acaricide active ingredient is a synergistic acaricidal composition as claimed in any one of claims 1 to 4.
  6. 6. The acaricide according to claim 5, wherein the acaricide is in the form of a suspension, microemulsion, water dispersible granule, solution, dispersible oil suspension, ultra-low volume liquid, dispersible liquid, soluble solution, emulsifiable concentrate, aqueous emulsion, microcapsule suspension-aqueous emulsion, microcapsule suspension-suspension emulsion, oil, powder, soluble granule, wettable powder.
  7. 7. The acaricide according to claim 5, wherein the total mass of the acaricide active ingredient is 1-60% of the total mass of the preparation.
  8. 8. Use of a synergistic acaricidal composition for controlling mites, which comprises a synergistic acaricidal composition as claimed in any one of claims 1 to 4.
  9. 9. The use according to claim 8, wherein the pest mites comprise spider mites, spider mites of cotton, spider mites of vegetables, spider mites of hawkthorn, spider mites of citrus, spider mites of apple, spider mites of two-spotted spider, gall mites, pink mites, spider mites of tea, alfalfa moss mites, citrus tumor mites.

Description

Synergistic acaricidal composition Technical Field The invention belongs to the technical field of pesticides, and particularly relates to a mite-killing composition with a synergistic effect. Background Chinese patent No. 110028431A describes a trifluoroethyl thioether (sulfoxide) substituted benzene compound and its mite-killing application, in particular, it has obvious effect for preventing and curing mite, its general formula is: (formula I), In the formula I, R1 and R2 are independently selected from hydrogen, halogen, cyano, C1-C4 alkyl or C1-C4 haloalkyl; n is selected from 0 or 1; r3, R4, R5, R6 are each independently selected from hydrogen, halogen, cyano, nitro, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, or C1-C4 haloalkoxy. In specific agricultural practices, acaricides containing a single active ingredient, if used singly for many years, tend to cause different degrees of resistance to mites. Aiming at the problem, a person skilled in the art usually compounds the two active ingredients, and screens out a composition with a synergistic effect and a weight ratio through a specific test, so that the control effect can be effectively improved, the dosage of a medicament is reduced, the use cost is reduced, and the generation of drug resistance of mites can be delayed. However, three different results, namely antagonism, addition or synergy, may occur after the two active ingredients are compounded, and whether the synergy can be generated is unpredictable and needs to be known through specific experiments. The applicant finds through specific experimental study that, in the formula I, when R1 is F, R2 is Me, R3 is H, R4 is H, R5 is H, R6 is H, and n is 1, namely a compound No.2 (hereinafter referred to as compound No. 2) disclosed in patent document CN110028431A has excellent acaricidal activity, and after the compound and other existing acaricidal compounds are compounded according to a specific proportion, the synergistic effect is remarkable. The structural formula of the specific compound is shown in the following formula Ia: (formula Ia). In the prior art, the compound with the structural formula of Ia is compounded with other compounds, and the situation is not reported. Disclosure of Invention The invention aims to provide a mite-killing composition with synergistic active ingredients, which can meet the requirements of improving the control effect and delaying the generation of drug resistance in the field of controlling pests and mites in agriculture. And under the national advocated pesticide reduction and synergy policy, the pesticide can replace high-toxicity or environment-friendly pesticide. In order to achieve the above purpose, the invention adopts the following technical scheme: A synergistic acaricidal composition comprising an active compound (a) which is at least one compound of formula I: (formula I), In formula I above, R 1、R2 is each independently selected from hydrogen, halogen, cyano, C1-C4 alkyl, or C1-C4 haloalkyl; n is selected from 0 or 1; R 3、R4、R5、R6 is each independently selected from hydrogen, halogen, cyano, nitro, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, or C1-C4 haloalkoxy. And at least one active compound (B) selected from: Chlorfenapyr, phoxim, dimethoate, pyridaphethione, carbosulfan, formamidine, lambda-cyhalothrin, lime sulfur, chlorpyrifos, profenofos, lambda-cyhalothrin, trifloxystrobin and Sulfiflumin, spirobudifen, mivorilaner, modoflaner, tigolaner, umifoxolaner, flupentiofenox. Preferably, the active compound (a) in the synergistic acaricidal composition of the present invention is preferably a compound of formula Ia: (formula Ia). Further preferably, the weight ratio of the active compound (A) to the active compound (B) is 1:100-100:1. Still more preferably, the weight ratio of the active compound (a) to the active compound (B) is 5:1 to 1:5. The invention also provides an acaricide, the preparation comprises an acaricidal active ingredient and an auxiliary agent, and the acaricidal active ingredient is the synergistic acaricidal composition. Further preferably, the acaricide is in the form of suspending agent, microemulsion, water dispersible granule, soluble liquid, dispersible oil suspending agent, ultra-low volume liquid, dispersible liquid, soluble liquid, emulsifiable concentrate, aqueous emulsion, microcapsule suspending agent, microcapsule suspension-aqueous emulsion, microcapsule suspension-suspending agent, oil, powder, soluble granule and wettable powder. Further preferably, the acaricide comprises said active ingredient in a high purity form (solid active of a specific purity) admixed with at least one of adjuvants conventional in the art of pesticide processing, including surfactants, antifreeze agents, defoamers, thickeners, preservatives, acid-base modifiers, deionized water. The surfactants mentioned are, depending on the type of formulation of the active ingredient to be formulated, suitable surfactants are anionic, cationic, non