Experiments on Control of Myzus persicae (Sulzer)with a Biological Insecticide, Mieyaning

Field and plot experiments on control of Myzus persicae (Sulzer)with a biological insecticide, Mieyaning WP, were conducted in 2001.The results showed that the plot control effects of Mieyaning at a dilution of 500~1 500 were over 99.03% and 93.96% for 10 days and 20 days after application, respectively, and the field demonstration showed an average control effect of 96.69% by application of Mieyaning (dilution 1 000)at a rate of 750g/ha.