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Compound pesticidal composition containing tolfenpyrad and methoxyfenozide and application thereof

A technology of methoxyfenozide and insecticidal composition, which is applied in the field of pesticides, can solve the problems that the insecticidal composition of tolfenpyrad and methoxyfenozide has not yet been found, and the effect of pest control decreases, and achieves the goal of overcoming pests. Effects of drug resistance, reduction of labor for prevention and control, reduction of production and use costs

Inactive Publication Date: 2014-02-12
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the resistance of diamondback moth, cotton bollworm and thrips is gradually increasing under the current long-term application conditions, and the effect of single-dose pesticides on pest control is gradually decreasing.
The inventor found through research that the synergistic compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no insecticidal composition related to tolfenpyrad and methoxyfenozide has been found.

Method used

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  • Compound pesticidal composition containing tolfenpyrad and methoxyfenozide and application thereof
  • Compound pesticidal composition containing tolfenpyrad and methoxyfenozide and application thereof
  • Compound pesticidal composition containing tolfenpyrad and methoxyfenozide and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fenpyran and methoxyfenozide were weighed and prepared in different proportions by conventional preparation methods to prepare tonamifen-methoxyfenozide emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Tables 1 and 2 for specific ratios.

[0025] The indoor synergistic bioassay was carried out by the leaf dipping method, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. The toxicological regression equation and lethality of the resistant Plutella xylostella were calculated by the probability value method Medium concentration LC 50 , with LC 50 The co-toxicity coefficient was calculated according to Sun Yunpei method, and the results are shown in Table 1:

[0026] Table 1 Toxicity determination of Fenpyran and methoxyfenozide compound and single dose against resistant Plutella xylostella

[0027]

[0028] It can be seen from...

Embodiment 2

[0034] Weigh 5g of tonfenpyrad, 50g of methoxyfenozide, 3g of phenethylphenol polyoxyethylene ether phosphate, and Nongru 33 ＃ 2g, Nongru 600# 1g, mineral spirits 13g, add water to 100g. The above raw materials are put into a mixing tank according to the conventional method for preparing water-based emulsions and mixed at high speed to form a tonamiprole-methoxyfenozide water-based emulsion with a main active ingredient of 55% by weight.

Embodiment 3

[0036] Weigh 2g of Fenpyran, 18g of methoxyfenozide, 6g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether phosphate, and 33 grams of agricultural milk ＃ 2g, Nongru 600# 1g, cyclohexanone 10g, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing microemulsions, and mix them to form a tonamiprole-methoxyfenozide microemulsion with a main active ingredient of 20% by weight.

[0037] Carry out the efficacy test of preventing and controlling vegetable diamondback moth in Example 3, according to the dosage in Table 3, use 20g, 30g per mu of land, and the contrast agent is 40% methoxyfenozide EC (emulsifiable concentrate) 30g / mu and 15% azole Insectamide EC 30g / mu, use clean water as blank control, check the results of 3 days, 7 days, 14 days and 28 days after treatment, the treatment results are shown in Table 3:

[0038] Table 3: Field test results of Fenpyran-Methoxyfenozide compound on ...

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Abstract

The invention discloses a compound pesticidal composition containing tolfenpyrad and methoxyfenozide and application thereof. The pesticidal composition uses tolfenpyrad and methoxyfenozide as main effective components, wherein the weight ratio of the tolfenpyrad to the methoxyfenozide is (0.1-80):(0.5-80). The pesticidal composition can generate higher synergic effect, overcomes and postpones the drug resistance of pests, has the advantages of high pesticidal speed and long duration time, lowers the pesticide cost, and has obviously higher preventing and treating effects than a single agent. The pesticidal composition can be used for preventing and treating Lepidoptera, Hemiptera, Coleoptera, Hymenoptera, Diptera, Thysanoptera and acarid pests on crops, especially has specially good effect on preventing and treating cabbage moths, cotton bollworms and asparagus caterpillars in Lepidoptera, thrips in Thysanoptera, acarids and other pests, and has obviously higher effect than a single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a compound insecticidal composition containing tolfenpyrad and methoxyfenozide and its application. Background technique [0002] Fenpyrad (Tolfenpyrad), chemical name: 4-chloro-3-ethyl-1-methyl-N-{[4-(4-methylphenoxy)phenyl]-methyl}-1H pyrazole -5-carboxamide. It is off-white solid powder, solubility (25°C): water 0.037 mg / L, n-hexane 7.41 g / L, toluene 366 g / L, methanol 59.6 g / L. Partition coefficient (n-octanol / water) (25°C): log Pow 5.61. The structural formula is: [0003] [0004] The acute toxicity of the preparation of tonfenpyrad is: oral LD50 of rats 102 (male), 83 (female) mg / kg; oral LD50 of mice 104 (male), 108 (female) mg / kg. The acute percutaneous toxicity is relatively low, with LD50>2000 mg / kg for rats and mice. Moderately irritating to rabbit eyes and skin. [0005] Fenpyramid is a new type of pyrazole heterocyclic insecticide and acaricide devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N37/40A01P7/04A01P7/02
Inventor 齐武陈文明杨瑞成高瑞花苑志军
Owner NANJING HUAZHOU PHARMA
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