矿物油乳剂与巴氏新小绥螨对柑橘全爪螨的协同控制研究  

Study on the cooperative control effect of mineral oil and Neoseiulus barkeri on Panonychus citri

作　　者：方小端[1] 欧阳革成[1] 卢慧林[1] 刘慧[1] 张宝鑫[2] 郭明昉[1] 吴伟南[1] 

机构地区：[1]广东省昆虫研究所,广州510260 [2]广东省农科院植物保护研究所,广州510640

出　　处：《环境昆虫学报》2012年第3期322-327,共6页Journal of Environmental Entomology

基　　金：国家公益性行业(农业)科研专项(201103020);广东省科技计划项目(2009A020101001)

摘　　要：利用捕食螨防治柑橘全爪螨Panonychus citri已有大面积应用,但捕食螨田间防治效果常受到果园使用化学农药的影响,相应配套技术是捕食螨应用的瓶颈问题。2010年6～10月,在广东省四会市罗源镇柑橘园,分别采用五种处理方式(常规化学农药;化学农药加巴氏新小绥螨Neoseiulus barkeri;单独使用矿物油乳剂;单独使用巴氏新小绥螨;矿物油乳剂加巴氏新小绥螨)防治柑橘全爪螨,设不采取任何防治措施的样地为对照。试验结果显示,各处理的种群干扰控制指数分别是3.7195、1.4942、0.2439、0.2053、0.0488,校正虫口减退率分别是-271.95%、-49.42%、75.61%、79.47%、95.12%。化学农药防治对柑橘全爪螨的控制作用不理想,影响了巴氏新小绥螨的持续控制作用;巴氏新小绥螨能较好地发挥对柑橘全爪螨的控制作用,矿物油乳剂表现出较好的长期控制效果,矿物油乳剂配合巴氏新小绥螨对柑橘全爪螨有较好的协同控制作用。The field application of predatory mites for controlling Panonychus citri usually was non-ideal due to the usage of chemical pesticides. The experiments were carried out in a citrus orchard in Sihui City, Guangdong Province, during June to October 2010. Five treatments were set, including （ 1 ） chemical pesticides spraying; （2） chemical pesticides spraying and Neoseiulus barkeri releasing; （3） mineral oil spraying only; （4） N. barkeri releasing only; （5） mineral oil spraying and N. barkeri releasing. No treatment as control. The interference index of population control was 3.7195, 1. 4942, 0. 2439, 0. 2053, 0. 0488, and the corrected-population-falling-rate was - 271.95%, - 49.42%, 75.61%, 79. 47%, 95.12% respectively. The results demonstrate that mineral oil and N. barkeri alone provide better control effect than the traditional chemical control on P. cirri. And the control effect of mineral oil combining with predatory mites on P. citri is optimal.

关 键 词：巴氏新小绥螨 矿物油乳剂 柑橘全爪螨 害虫种群干扰控制指数 

分 类 号：Q968[生物学—昆虫学]