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河南省是我国主要产棉区之一,常年种植棉花面积1000余万亩。病虫害是影响棉花生产的主要因素之一,造成减产达10—20%,棉田农药投入量占全省农药消耗量的50%以上。80年代以来,随着中棉12等抗病高产品种的大面积推广,基本控制了棉花枯、黄萎病的发生蔓延,害虫防治则成为突出的问题。因此,制订和采取优化的害虫治理方案有极重要的意义。“六五”以来,河南省农科院植保所对我省棉区主要害虫,如棉铃虫、红铃虫、棉蚜和棉红蜘蛛的发生规律,预测
Henan Province is one of the major cotton-producing areas in our country. The annual cotton planting area is more than 1,000 mu. Pests and diseases are one of the main factors that affect cotton production, resulting in a decrease of 10-20%. The input of pesticides in cotton fields accounts for more than 50% of the total pesticide consumption in the province. Since the 1980s, with the large-scale popularization of resistant and disease-resistant high-yield varieties such as cotton 12, the occurrence of cotton wilt and verticillium wilt has been basically controlled and pest control has become a prominent issue. Therefore, the development and adoption of optimized pest management programs are of great importance. Since the Sixth Five-Year Plan, the plant protection institute of Henan Academy of Agricultural Sciences has predicted the occurrence of major pests such as cotton bollworm, pink bollworm, cotton aphid and cotton spider in the cotton area of our province