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柑橘全爪螨Panonychus citri(McGregor)是柑橘上的重要有害生物,控制上目前仍以化学防治为主,捕食螨也在一些果园采用。安全性较高的农药正不断推广应用,一些生物源农药也已大面积使用。不过这些农药对柑橘全爪螨及其它柑橘害虫的田间控制效果如何,是否影响到商品捕食螨和果园自然天敌的种群维持与发展及其对柑橘害虫的持续控制,仍需较多而深入地检测和评估。2011年4—2012年1月,在广东省封开县,选择了3个不同害虫防治措施(以阿维菌素为主,巴氏新小绥螨Neoseiulus barkeri+矿物油乳剂为主,胡瓜新小绥螨N.cucumeris+苦参碱为主)的果园,调查比较了不同害虫防治措施对柑橘全爪螨的防治效果及对柑橘园中天敌类群的影响。试验结果显示,以巴氏新小绥螨+矿物油乳剂为主和以胡瓜新小绥螨+苦参碱为主的果园内自然天敌的丰富度高于以阿维菌素为主的果园,其群落结构也有所不同,它们对柑橘全爪螨和其它柑橘害虫的田间持续控制效果也比以阿维菌素为主的措施更好。
Panonychus citri (McGregor), an important citrus pest, is still dominated by chemical control and predatory mites are also used in some orchards. Pesticides with higher safety are being popularized and used, and some biogenic pesticides have also been widely used. However, the field control effects of these pesticides on Citrus dwarf mite and other citrus pests affect the population maintenance and development of commercial predators mites and orchard natural enemies and their continued control of citrus pests, and still require more and in-depth testing And evaluation. From January 2011 to January 2012, three different pest control measures were selected in Fengkai County of Guangdong Province (mainly Abamectin, Neoseiulus barkeri + mineral oil emulsion, Mites N.cucumeris + matrine-based) orchards, the survey compared the control measures of different pests on citrus red mite prevention and control of citrus orchards and natural enemies. The results showed that the natural enemies in the orchard with the main freshwater cucumbers + mineral oil emulsion and the new cucumeris + matrine were higher than the avermectin-based orchards, Their community structure is also different, and their citrus mite and other citrus pests on the field continued to control the effect of abamectin-based measures better.