Composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof
An insecticidal composition and technology for thiacloprid, which are applied in the field of pesticides containing heterocyclic compounds, can solve the problems that the effect of pest control is decreased, the insecticidal composition of thiamethoxam and thiacloprid has not been found, and the like, and can reduce the prevention and control of thiacloprid. Labor, improve control effect, reduce production and use costs
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[0022] Example 1:
[0023] Weigh 30 g of thiamethoxam and thiacloprid, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and vegetable oil to 100 g. The above raw materials were put into a mixing kettle according to the conventional method for preparing emulsifiable concentrates, and mixed to prepare thiamethoxam·thiacloprid emulsifiable concentrates with a main active ingredient weight percentage of 30%. The specific ratios of thiamethoxam and thiacloprid are shown in Tables 1 and 2.
[0024] The indoor synergistic biological assay was carried out by the rice stem dipping method, and the resistant N. lugens was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Concentration LC 50 , with LC 50 The co-toxicity coefficient is calculated according to the Sun Yunpei method, and the results are shown in Table 1:
[0025] Table 1 Toxicity determination of thiamethoxam and thiaclo...
Example Embodiment
[0032] Embodiment 2: Weigh 50g of thiamethoxam, 5g of thiacloprid, 3g of phenethylphenol polyoxyethylene ether phosphate, 33g of agricultural milk # 2g, emulsifier 600 # 1g, solvent oil 13g, add water to 100g. The above raw materials were put into a mixing kettle and mixed at a high speed according to the conventional method for preparing an aqueous emulsion to prepare a thiamethoxam-thiacloprid aqueous emulsion with a main active ingredient weight percentage of 55%.
Example Embodiment
[0033] Embodiment 3: Weigh 18g thiamethoxam, 2g thiacloprid, 6g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether phosphate, and agricultural milk 33 # 2g, emulsifier 600 # 1g, cyclohexanone 10g, add water to 100g. The above raw materials are put into the mixing kettle according to the conventional method for preparing microemulsion, and the thiamethoxam·thiacloprid microemulsion with the main active ingredient weight percentage of 20% is prepared.
[0034] Example 3 is carried out to control rice brown planthopper efficacy test, and the control agent is 20% thiacloprid WP (wettable powder) and 20% thiamethoxam WP (wettable powder), diluted according to the dilution ratio in table 3, the medicine After checking the results for 3 days and 7 days, the processing results are shown in Table 3:
[0035] Table 3: Field test results of thiamethoxam-thiacloprid combination on rice brown planthopper
[0036]
[0037] The field efficacy results showed that ...
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