Synergistic insecticidal composition containing clothianidin and imidaclothiz and applications thereof
The technology of an insecticidal composition and chlorothiline, which is applied to the field of pesticides containing heterocyclic compounds, can solve the problems of no wide-scale use, inability to protect crops, easy generation of drug resistance, and the like, so as to reduce the amount of pesticides used in the field and reduce environmental pollution. and pesticide residues, and the effect of reducing labor costs for prevention and control
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Embodiment 1
[0023] Weigh 30 g of clothianidin and chlorothialine, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and vegetable oil to 100 g. Put the above raw materials into a mixing tank according to the conventional method for preparing emulsifiable concentrate, and mix them to prepare clothianidin·chlorthialine emulsifiable concentrate with a main active ingredient of 30% by weight. The specific ratio of clothianidin and chlorothialine is shown in Table 1.
[0024] The rice dipping method was used to determine the toxicity of clothianidin, chlorothialine and their compound samples to rice planthoppers. Each treatment was repeated 3 times, and each concentration was treated with 30 heads. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:
[0025] Table 1 Toxicity determination and co-toxicity coefficient of clothianidin, chlorothialine and their compound samples to rice planthoppers
[0026]
[0027] The data in the ta...
Embodiment 2
[0029] Clothianidin and clothialine were weighed and prepared in different proportions by conventional preparation methods to prepare clothianidin chlorothialine emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Table 2 for specific proportions.
[0030] The toxicity of clothianidin, chlorothialine and their compound samples to rice stem borer was determined by dipping method, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:
[0031] Table 2 Toxicity determination and co-toxicity coefficient of clothianidin, chlorothialine and their compound samples to rice stem borer
[0032]
[0033] The data in the table shows that clothianidin and chlorothialine have a synergistic effect on rice stem borer after mixing, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Therefore, clothianidin and chlorothialine Mixing has a signif...
Embodiment 3
[0035] Weigh 5g of clothianidin, 20g of chlorothialine, 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 make clothianidin · chlorothialine emulsifiable concentrate whose main active ingredient weight percent content is 25%.
[0036] Adopt the sample of embodiment 3 to carry out the field test of rice planthopper prevention and control in field, contrast agent is 15% clothianidin EC and 10% chlorothialine WDG, 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:
[0037] Table 3 example 3 sample is to the field test result of paddy rice planthopper
[0038]
[0039] It can be seen from Table 3 that Example 3 has an excellent quick-acti...
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