The emulsion in water was prepared by reverse phase method.Through experiments,the optimal formula of spinosad·pyridalyl 15%emulsion in water was determined:5%spinosad,10%pyridalyl,10%dimethyl decanamide,10%trimethylbenzene,3%D800,3%7207-F,5%propylene glycol,0.1%defoamer SAG630,and water is added to make up the balance.The emulsion in water prepared by this formula has good adaptability to different batches of active ingredients,small particle size,low surface tension,and good spreadability on cabbage leaves.Its control effect is better than that of pyridalyl 10%EC promoted on the market.It is an excellent pesticide emulsion in water product and has high market promotion value and application prospects.
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