Synergistic insecticidal composition containing clothianidin and nitenpyram and applications thereof
An insecticidal composition, nitenpyram technology, applied in the field of pesticides containing heterocyclic compounds, can solve the problems of high drug cost, narrow insecticidal spectrum, easy to produce drug resistance, etc., to achieve production and use cost reduction, inhibition The effect of increasing resistance and reducing the amount of pesticides used in the field
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Embodiment 1
[0021] Weigh 30 g of clothianidin and nitenpyram, 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·nitenpyram emulsifiable concentrate with a main active ingredient of 30% by weight. The specific ratio of clothianidin and nitenpyram is shown in Table 1.
[0022] The rice dipping method was used to determine the toxicity of clothianidin, nitenpyram and their compound samples to rice planthoppers. Each treatment was repeated 3 times, and 30 heads were treated at each concentration. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:
[0023] Table 1 Toxicity determination and co-toxicity coefficient of clothianidin, nitenpyram and their compound samples to rice planthoppers
[0024]
[0025] The data in the table shows that cloth...
Embodiment 2
[0027] Weigh clothianidin and nitenpyram and prepare clothianidin-nitenpyram emulsifiable concentrate with a main active ingredient weight percentage of 30% by conventional preparation methods in different proportions. See Table 2 for specific proportions.
[0028] The toxicity of clothianidin, nitenpyram and their compound samples to vegetable aphids was determined by feed poisoning method, each treatment was repeated 3 times, and the LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:
[0029] Table 2 Toxicity determination and co-toxicity coefficient of clothianidin, nitenpyram and their compound samples to vegetable aphids
[0030]
[0031] The data in the table shows that clothianidin and nitenpyram have a synergistic effect on vegetable aphids after being mixed, and the co-toxicity coefficients of the four ratios listed in the table are all far greater than 120. Mixing has a significant synergistic effect. Among them, when the ratio of clo...
Embodiment 3
[0033] Weigh 4g clothianidin, 20g nitenpyram, 4g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether, xylene 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 make clothianidin nitenpyram emulsifiable concentrate whose main active ingredient is 24% by weight.
[0034] The sample prepared in Example 3 was used to carry out the field test of rice planthopper prevention and control in the field. The contrast agent was 15% clothianidin EC and 10% nitenpyram WDG. The specific consumption is shown in Table 3. The water consumption per mu is 30kg. Check the results after 3 days, 7 days, 14 days, and 28 days. The test results are shown in Table 3:
[0035] Table 3 embodiment 3 sample is to the field test result of paddy rice planthopper
[0036]
[0037] It can be seen from Table 3 that Example 3 has an excellent quick-acting effect on rice planthoppers, an...
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