Synergistic insecticidal composition containing nitenpyram and acetamiprid, and application thereof
An insecticidal composition and technology containing nitenpyram, applied in the field of pesticides, can solve the problems of poor control effect of rice planthopper and no insecticidal drug composition has been found, so as to reduce the amount of pesticides used in the field, reduce environmental pollution and Pesticide residues and the effect of reducing the labor cost of prevention and control
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[0021] Example 1:
[0022] Nitenpyram and acetamiprid were weighed and formulated into nitenpyram·acetamiprid EC with a main active ingredient mass percentage of 30% by conventional preparation methods in different proportions. The specific ratios are shown in Tables 1 and 2.
[0023] The rice stem dipping method was used for indoor synergistic bioassay, and the resistant rice planthopper was selected as the target pest. Each treatment was repeated 3 times, and each concentration treated 60 heads. 50 The value is calculated by Sun Yunpei's method of co-toxicity coefficient:
[0024] Table 1 The virulence determination of nitenpyram and acetamiprid compound and single dose of resistant rice planthopper.
[0025]
[0026] It can be seen from Table 1 that the compound of nitenpyram and acetamiprid has a co-toxicity coefficient greater than 120, showing a good synergistic effect.
[0027] Select the resistant wheat aphids as the target pests. Use the method of soaking insects and soaking le...
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[0039] Example 2:
[0040] Weigh 0.5g nitenpyram, 10g acetamiprid, 4g calcium dodecylbenzene sulfonate, 3g phenethylphenol polyoxyethylene ether, and xylene to 100g, put the above raw materials into the mixture according to the usual method of preparing emulsifiable concentrates Mix in the kettle to form a 10.5% nitenpyram·acetamiprid EC.
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[0041] Example 3:
[0042] Weigh 2g nitenpyram, 8g acetamiprid, emulsifier 1602 # 4g, emulsifier 500 # 2g, N-methylpyrrolidone 4g, isopropanol 6g, xylene 3g, the balance is water, put the above raw materials into the mixing kettle according to the conventional method of preparing microemulsion, and mix to form 10% nitenpyram·acetamiprid Microemulsion.
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