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Synergistic insecticidal composition containing pymetrozine and ethofenprox and application thereof

The technology of an insecticidal composition and etherethrin, which is applied in the field of pesticides, can solve problems such as the insecticidal composition that has not yet been found, and achieve the effects of overcoming the resistance of pests, reducing the cost of medication, and having high synergistic effects.

Inactive Publication Date: 2011-04-20
NANJING NO 1 PESTICIDE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No insecticidal composition compounded by pymetrozine and etofenprox has been found so far

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weighing pymetrozine and etofenprox was prepared in different proportions by conventional preparation methods to prepare pymetrozine-etoproxil emulsifiable concentrate with 30% mass percentage of active ingredients. See Tables 1 and 2 for specific ratios.

[0020] The toxicity of pymetrozine, etofenprox and their compound samples to rice striatellus was determined by rice stem dipping method, each treatment was repeated 3 times, 60 heads were treated at each concentration, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0021] Table 1 Toxicity determination and co-toxicity coefficient of the synergistic insecticidal composition of pymetrozine and etofenprox to rice striatellus

[0022]

[0023] The data in the table shows that the mixture of pymetrozine and etofenprox 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 than 120, so the mix...

Embodiment 2

[0029] Weigh 2g of pymetrozine, 10g of etofenproxil, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and xylene to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mix to form a formulation of 12% pymetrozone-etoproxil EC.

[0030] Adopt the sample that embodiment 2 is equipped to carry out the field test of preventing and treating rice brown planthopper in the field, contrast agent is 25% pymetrozine EC and 20% etofenprox EC, and concrete consumption is shown in Table 3, and the water consumption per mu is 30kg, after the medicine Check the results of 3 days, 7 days, 14 days, and 28 days. The test results are shown in Table 3:

[0031] Table 3 embodiment 2 sample is to the field test result of rice brown planthopper

[0032]

[0033] It can be seen from Table 3 that Example 2 has excellent quick-acting effect on rice SBPH, and has a relatively long du...

Embodiment 3

[0039] Weigh 2g of pymetrozine, 20g of etofenproxil, 10g of lignin, 2g of naphthalene sulfonate, add kaolin to 100g, mix the above raw materials in an ultrafine pulverizer to form 22% pymetrozine·etofenproxil Wet powder.

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Abstract

The invention discloses a synergistic insecticidal composition containing pymetrozine and ethofenprox and application of the synergistic insecticidal composition. The insecticidal composition contains the main effective components of the pymetrozine and the ethofenprox, wherein the mass ration of the pymetrozine to ethofenprox is 0.1-80:0.1-50. The synergistic insecticidal composition can be used for controlling resistant hemiptera pests, and particularly has a significant control effect on aphids, white flies and plant hoppers. The synergistic insecticidal composition can generate a higher synergistic action, overcomes and retards the pest resistance, has a high insecticidal speed and a long lasting period and reduces the drug application cost; and the control effect is obviously higher 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 etofenprox as main active ingredients and its application. 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. It is an efficient broad-spectrum insecticide. It is particularly effective against Hemiptera and is mainly used to control pests resistant to o...

Claims

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Application Information

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IPC IPC(8): A01N43/707A01N31/14A01P7/04
Inventor 杨寿海齐武陈新春袁竹青陈文明
Owner NANJING NO 1 PESTICIDE GRP
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