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一、咖啡害虫侵害咖啡的害虫达数百种。据报道,其中很多种害虫是在天敌良好控制之下。 (一)肯尼亚粉蚧据Le Pelley(1968)记述,寄生蜂Anagyrus nr.kivuensis Compere有很高的防效。另一种外来的寄生蜂A.beneficans Compere也已定居,这种寄生蜂可能对防治在本地灌木上的害虫更重要,而A.nr.kivuensis则为咖啡园的主要寄生蜂。放蜂三年,肯尼亚粉蚧数量减少,
First, coffee pests against hundreds of pests of coffee. It is reported that many of these pests are well controlled by natural enemies. (I) Kenya mealybug According to Le Pelley (1968), the parasitic wasp Anagyrus nr. Kivuensis Compere is highly effective. Another exotic parasitic wasp, A. beneficans Compere, has also been settled. Such parasitoids may be more important for the control of pests on native shrubs, whereas A.nr. kivuensis is the major parasitic wasp in the coffee plantation. Put the bee for three years, reducing the number of mealybugs in Kenya,