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Working to control whitefly menace

机译:努力控制粉虱危害

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摘要

Glasshouses may protect ornamentals from the weather, but they are also a breeding ground for whitefly. There are as many as 1,600 species of whitefly in the world, but there are only two of economic importance to the UK. The most familiar example togrowers of protected ornamentals is the glasshouse whitefly, Trialeurodes vaporariorum. Although originating from countries with warmer climates than here, this species is well suited to the environment found in glasshouses and polytunnels, which is whyit can be a severe pest in those conditions if it is left unchecked. Biological control of whitefly centres on Encarsia formosa. Other natural enemies mciudethe beetle Delphastus pusillus, best used to reduce hot spots where Encarsia is losing the upperhand, and Eretmocerus eremicus.
机译:玻璃温室可以保护观赏植物免受天气影响,但它们也是粉虱的温床。世界上有多达1600种粉虱,但对英国而言只有两种具有经济重要性。受保护的观赏植物种植者最熟悉的例子是温室白粉虱Trialeurodes vaporariorum。尽管该物种起源于气候比这里温暖的国家,但该物种非常适合温室和聚落隧道中发现的环境,这就是为什么如果不加以控制,在某些情况下可能是严重的害虫。粉虱的生物防治以福建form虫为中心。其他天敌则是甲虫Delphastus pusillus,最适合用来减少Encarsia和Eretmocerus eremicus失去热点的地方。

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