Nano pesticides have the advantages of small particle size,good dispersibility,and high utili-zation rate,making them a hot topic in the research of development of pesticide formulations in recent years.In this work,a liquid chromatography-mass spectrometry method was established to analyze the re-tention dose of pyraclostrobin and tebuconazole on pepper leaves.The recovery rates were 83.9％～108.5％,and the relative standard deviation was 4.3％～9.9％.The retention performance of 30％pyraclostrobin·tebuconazole nanosuspension on pepper leaves studied by foliar spray,with 30％pyra-clostrobin tebuconazole suspension as control.The results showed that after 3 and 7 days of treatment,the pesticide retention on the pepper leaves treated with the control group was 0.042～2.71 mg/kg,which was lower than that of the nanosuspension treatment(0.064～4.93 mg/kg).Nanosuspension had better retention performance on pepper leaves.
维普
万方数据