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Composite insecticidal composition containing methoxyfenozide and chlorfluazuron and application thereof

A technology containing methoxen hydrazide and an insecticidal composition, which is applied in the field of pesticides, and can solve the problems such as the insecticidal composition of methoxen hydrazide and haloxuron that has not been found, and the effect of pest control is reduced.

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

[0012] 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 inventors have 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 methoxyfenozide and chlorfluazuron has been found.

Method used

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  • Composite insecticidal composition containing methoxyfenozide and chlorfluazuron and application thereof
  • Composite insecticidal composition containing methoxyfenozide and chlorfluazuron and application thereof
  • Composite insecticidal composition containing methoxyfenozide and chlorfluazuron and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weighing methoxyfenozide and chlorfluazuron were prepared in different proportions by conventional preparation methods to prepare methoxyfenozide-chlorfluazuron emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Tables 1 and 2 for specific ratios.

[0026] 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:

[0027] Table 1 Toxicity determination of methoxyfenozide and chlorfluazuron compound and single dose against resistant diamondback moth

[0028]

[0029] It can b...

Embodiment 2

[0035] Weigh 5g of methoxyfenozide, 50g of chlorfluazuron, 3g of phenethylphenol polyoxyethylene ether phosphate, Nongru 33 ＃ 2g, Nongru 600# 1g, mineral spirits 13g, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing water-based emulsions and mix at high speed to form a methoxyfenozide-chlorfluazuron water-based emulsion with a main active ingredient of 55% by weight.

Embodiment 3

[0037] Weigh 2g of methoxyfenozide, 18g of chlorfluazuron, 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 methoxyfenozide·chlorfluazuron microemulsion with a main active ingredient of 20% by weight.

[0038] Example 3 is carried out to prevent and control vegetables Plutella xylostella drug efficacy test, according to the amount of medication in Table 3, 20g, 30g per mu of land, the contrast agent is 40% chlorfluazuron EC (emulsifiable oil) 30g / mu and 15% methoxyfen Hydrazide EC30g / mu, use clear water as blank control, check the results of 3 days, 7 days, 14 days and 28 days after the medicine, the treatment results are shown in Table 3:

[0039] Table 3: Field test results of the combination of methoxy...

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Abstract

The invention discloses a composite insecticidal composition containing methoxyfenozide and chlorfluazuron and an application thereof. The insecticidal composition takes methoxyfenozide and chlorfluazuron as main active ingredients, wherein the weight ratio of methoxyfenozide to chlorfluazuron is (0.1-80):(0.5-80). The insecticidal composition can generate relatively high synergistic effect, overcomes and delays the drug resistance of insects, and realizes high insecticidal speed and long duration while the application cost is reduced and the prevention effect is obviously better than that of using a single agent. The insecticidal composition disclosed by the invention can prevent lepidoptera, hemiptera, coleoptera, hymenoptera, diptera and mite insects on crops and particularly realizes a special effect on the insects such as lepidoptera plutella xylostella, cotton bollworm and beet armyworm, thysanoptera thrips and mites and the like, and the effect is obviously better than that of using 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 methoxyfenozide and chlorfluazuron and its application. Background technique [0002] Methoxyfenozide, chemical name: N-tert-butyl-N'-(3-methoxy-2-methylbenzoyl)-3,5-dimethylbenzoylhydrazide. The structural formula is: [0003] [0004] The pure product is a white powder with a melting point of 202-205°C. Water solubility at 20°C <1mg / L. Solubility in other solvents: dimethyl sulfoxide 11g / L, cyclohexanone 9.9g / L, acetone 9g / L. Stable in storage at 25°C, hydrolyzed at 25°C, PH=5, 7, 9. [0005] The methoxyfenozide preparation has low toxicity, the acute oral LD50 of rats is 5000mg / kg, and the acute percutaneous LD50>2000mg / kg. [0006] Methoxyfenozide is a kind of insect growth regulator, which mainly interferes with the normal growth and development of insects, even if the insects molt and die, and can inhibit fee...

Claims

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Application Information

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IPC IPC(8): A01N47/34A01N37/40A01P7/04A01P7/02
Inventor 齐武陈文明杨瑞成高瑞花苑志军
Owner NANJING HUAZHOU PHARMA
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