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介绍了小菜蛾在四川内江市的发生为害概况及其为害特点,指出该虫在四川内江呈现发生为害面广,受害蔬菜种类多,抗药性强,蔓延速度快,繁殖力强,成活率高,世代重叠明显的特点。提出了采用种植抗虫品种,清除越冬寄主,加强栽培管理,减少虫源,重视测报和诱杀成虫,合理选用农药,运用科学有效的防治技术,将小菜蛾的发生为害控制在经济允许水平之下的综合防控措施。
This paper introduced the general situation and the damage characteristics of diamondback moth in Neijiang City, Sichuan Province. It pointed out that the insect appeared in Neijiang, Sichuan Province, had a wide range of harmful and harmful vegetables, strong resistance, strong spread, strong fertility and high survival rate. Generations overlap the obvious characteristics. Proposed the adoption of the planting of insect-resistant varieties, removal of wintering host, strengthen the cultivation and management, reduce the source of insects, emphasis on measuring and trapping adults, the rational use of pesticides, the use of scientific and effective control techniques to control the occurrence of diamondback moth economically below the allowable level Comprehensive prevention and control measures.