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Synergistic insecticidal composition containing pymetrozine and flonicamid and application thereof

A technology of flonicamid and an insecticidal composition, which is applied in the field of synergistic insecticidal compositions, can solve the problems of undiscovered resistant homopteran pests, etc., and achieve the reduction of labor costs for prevention and control, reduction of production and use costs, and good The effect of the control effect

Inactive Publication Date: 2013-04-24
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventor found through research that the compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no compound insecticidal composition of pymetrozine and flonicamid has been found to control resistant Homoptera. pest

Method used

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  • Synergistic insecticidal composition containing pymetrozine and flonicamid and application thereof
  • Synergistic insecticidal composition containing pymetrozine and flonicamid and application thereof
  • Synergistic insecticidal composition containing pymetrozine and flonicamid and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Pymetrozine and flonicamid were weighed, and conventional preparation methods were used to prepare pymetrozine·fluonicamid EC with a mass percentage of the main active ingredient of 30% in different proportions. See Tables 1 and 2 for specific ratios.

[0020] The rice stem dipping method was used to determine the toxicity of pymetrozine, flonicamid and their compound samples to rice brown planthopper. Each treatment was repeated 3 times, and each concentration treated 30 heads. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0021] Table 1 Toxicity determination and co-toxicity coefficient of the compound synergistic insecticidal composition of pymetrozine and flonicamid against rice brown planthopper

[0022]

[0023] The data in the table shows that the mixture of pymetrozine and flonicamid has a synergistic effect on rice brown planthopper, and the co-toxicity coefficients of the three ratios listed in the table are all far greater t...

Embodiment 2

[0030] Weigh 12g of pymetrozine, 13g of flonicamid, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and solvent oil to 100g, and put the above raw materials into the mixing tank according to the conventional method of preparing emulsifiable concentrate Mixed in medium to prepare 25% pymetrozine flonicamid EC.

[0031] Adopt the sample of embodiment 2 to carry out the field test of rice brown planthopper prevention and control in field, contrast agent is 25% pymetrozine WP and 25% flonicamid EW, and specific consumption is shown in Table 3, and the water consumption per mu is 30kg, check after medicine. 3 days, 7 days, 14 days, 28 days results, the test results are shown in Table 3:

[0032] Table 3 example 2 sample is to the field test result of rice brown planthopper

[0033]

[0034] It can be seen from Table 3 that Example 2 has excellent quick-acting effect on rice brown planthopper, and has a long persistence period, and performs we...

Embodiment 3

[0041] Weigh 1g of pymetrozine, 10g of flonicamid, 8g of phenylethylphenol polyoxyethylene ether, 10g of calcium dodecylbenzenesulfonate, and solvent oil to 100g, and put the above raw materials into the mixing tank according to the conventional method of preparing emulsifiable concentrate Mix in medium to form pymetrozine flonicamid EC.

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Abstract

The invention discloses a synergistic insecticidal composition containing pymetrozine and flonicamid and application thereof. The synergistic insecticidal composition comprises main effective components of pymetrozine and flonicamid in a weight ratio of 0.1-70:0.1-80. The synergistic insecticidal composition provided by the invention has high synergistic effect, overcomes and delays the insect resistance, expands the spectrum of control, and has high insecticidal speed, long duration, reduced use cost and reduced toxicity. The synergistic insecticidal composition provided by the invention can be used in control of Homoptera pests, especially rice planthopper, bemisia tabaci and aphid, and has effect significantly better than that of a single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a synergistic insecticidal composition with pymetrozine and flonicamid as main active ingredients and an application thereof. Background technique [0002] Pymetrozine, chemical name: 4,5-dihydro-6-methyl-4-(3-pyridinemethyleneamino)-1,2,4-3(2H)-one. Pymetrozine is a pyridinium imine heterocyclic insecticide developed by Swiss Novartis in 1988 to control aphids and whiteflies. It has the characteristics of high efficiency, low toxicity, high selectivity and environmental friendliness. Its mode of action is Unique: It mainly affects the feeding behavior of insects, making them refuse to eat and die. The drug is effective on both larvae and adults, and has a long duration of action, without any cross-resistance, and is highly safe to natural enemies. High-efficiency broad-spectrum insecticide. It is particularly effective against Homoptera, and is mainly used to control pests resistant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/707A01N43/40A01P7/04
Inventor 杨寿海刘奎涛陈文明郭崇友唐旺权
Owner NANJING HUAZHOU PHARMA
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