Field Experiments on Control of Myzus persicae Sulzer with PesticideMixture

For selecting more effective pesticide mixture and reducing the cost of highly effective pesticides, two pesticide mixtures were selected and evaluated in field plots.The results proved the synergism of dipterex + deltamethrin increased the control effect by 10.23-21.42 percentage points, dosage and cost reduced by 0.135 kg/667 m² and 1.02 yuan/667 m² respectively, comparing with single pesticide.The variance analysis showed that the control effect difference between single and mixed pesticides was extremely significant.