滨州地区是山东省的产棉大区 ,常年的棉花种植面积在 6万公顷左右。近年来 ,随着化学药剂的大量使用 ,棉铃虫的抗性不断上升 ,棉农开始普遍种植抗虫棉品种 ,本区主要为菏棉 1号和中棉所2 9,由于受今年气候及抗虫棉自身的影响 ,本区棉花红叶茎枯病发生严重 ,据调查 ,病田率在 50 Binzhou is a cotton-producing area in Shandong Province. Perennial cotton planting area is about 60,000 hectares. In recent years, with the extensive use of chemical agents, the resistance of the cotton bollworm is on the rise. Cotton farmers begin to plant common varieties of insect-resistant cotton. The main areas in the area are Qimian 1 and Zhongmiansuo 2. Due to this year’s climate and insect resistance Cotton’s own influence, this area cotton leaves blight serious, according to the survey, the disease rate at 50