Development and Evaluation on the Pesticide Effect of 30% of Spirotetramat·Flonicamid Suspension Concentrate
- Received Date: 24/12/2021
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Key words:
- spirotetramat /
- flonicamid /
- SC /
- prescription /
- control efficacy
Abstract: In order to effectively prevent and control the croppests such as apple aphids, the formulation and efficacy test of 30% spirotetramat·flonicamid SC. suspension concentrate (SC) were studied.The suitable wetting dispersant, structural stabilizer, antifreeze, foaming agent, and additives were selected by wet grinding process.The optimized formula of 30%spirotetramat·flonicamid SC was determined as 20% of spirotetramat, 10% of flonicamid, 1% of 500LQ, 3% of FD, 2% of SC, 5% of Prime, 5% of glycol, 0.3% of sodium benzoate, 0.5% of 630, 0.15% of xanthan gum, 1% of magnesium aluminum silicate, and supplement of deionized water.The results show that the suspension rate of the formula is more than 90%, and the decomposition rate is less than 3% after 14 d of thermal storage. All the technical indexes met the requirements of the water suspension agent.According to the outdoor bioassay test, According to the outdoor bioassay test, the control effect of 1 000 time liquid spraying on apple aphids reached 98.02% 15 days after spraying, which met the original intention of the experimental design.