不同防治措施对秋甘蓝鳞翅目害虫及天敌的影响  

Effects of different control practices on lepidopterous insect pests and beneficials in autumn cabbage:

作　　者：林文彩[1] 郭世俭[1] 章金明[1] 刘树生[2] 

机构地区：[1]浙江省农业科学院植物保护研究所,浙江杭州310021 [2]浙江大学应用昆虫学研究所,浙江杭州310029

出　　处：《浙江农业学报》2002年第3期150-154,共5页Acta Agriculturae Zhejiangensis

基　　金：浙江省科技厅重大项目 (0 0 110 6 12 4 ) ;澳大利亚国际农业研究中心资助项目 (ACIARCS2 /1998/0 89)

摘　　要：以几种鳞翅目害虫的复合防治阈值作为决策指标 ,比较了生防区、化防区和农民自控区等几种防治措施间害虫数量、天敌数量、作物产量和品质等的差异。结果表明 ,应用生物农药和对天敌较安全的化学农药能有效控制害虫 ,对天敌具有明显的保护助增作用 ,而且可降低施药成本4 0 %以上 。A composite action threshold of several lepidopterous insect pests was applied as decision criteria, to investigate the differences of number of insect pests and beneficials, crop yield and marketability among different control practices (biological control, chemical control and farmer decision). The results showed that biological or 'soft' insecticides used in an IPM strategy were effective against the insect pests, and helped to promote activities of both parasitoids and predators. As a result, the cost of pest control decreased by more than 40%, and the marketability of cabbage was improved evidently.

关 键 词：复合防治指标 鳞翅目害虫 天敌 甘蓝 

分 类 号：S436.35[农业科学—农业昆虫与害虫防治] S433.4[农业科学—植物保护]