论文部分内容阅读
栗实象鼻虫是危害板栗的主要害虫,综合防治粟实象鼻虫,是提高板栗干果产量和品质的重要措施。 一、药剂防治 可于栗实象鼻虫的成虫羽化出土盛期(8月份)施药,即8月5日前后喷药1次,间隔10～14天再喷1次,共喷2～3次。据几年来的试验、示范结果显示,“生物Bt”杀虫剂防效最好,667平方米栗园每次用
The chestnut weevil is the main pest that endangers the chestnut, and the comprehensive prevention and cure of the weevil is an important measure to improve the yield and quality of the chestnut dried fruit. First, the chemical control in the chestnut weevil Adult emergence peak emergence (August) application, that is, before and after August 5 spraying 1, interval 10 to 14 days and then spray 1, a total of 2 to 3 spray Times. According to several years of experiments, the demonstration results show that “biological Bt” insecticides control the best, 667 square meters Chestnut each use