山西省棉蚜、棉铃虫抗药性治理对策及应用研究

根据抗药性治理的原则，针对我省棉蚜、棉铃虫抗药性实际状况，在全省范围内，制定和实施了一套适合我省特点的抗药性治理方案。在综合防治的前提下，具体和优化了化学防治，强调科学、合理使用农药。采用抗药性治理措施和综合防治措施后，示范区防治成本降低２３％～３３％，防治效果明显优于非示范区，经济效益十分显著。示范区用药次数和用量减少，对延缓棉铃虫抗药性的增长将起重要作用。

Resistance Management to Cotton Aphids and Cotton Bollworm in Shanxi

Based on the resistance management principles developed world wide and on the real circumstance of the resistance of cotton aphids and cotton bollworm in Shanxi, PR China, a rasistance management strategy to the two pest insects in Shanxi, PR China was suggested and applied. It was an optimized chemical control in the condition of intergrated pest management. The rationalization of pesticide use and introduction of biological, cultural, and physical control would be emphasized. Through practical demonstration, the management measurements showed their benefit to reducing pesticide input and increasing cotton yields.