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首页> 外文期刊>The Australian Cottongrower >Silverleaf whitefly on the march.
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Silverleaf whitefly on the march.

机译:银叶粉虱行军。

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摘要

A report on the monitoring of silverleaf whitefly (SLW), Bemisia tabaci B-biotype, is presented. All major cotton growing areas in Queensland, Australia, were surveyed from the winter of 1996 for the distribution of whitefly, its hosts and its natural enemies. The central highlands, Dawson-Callide, St George and Goondiwindi were sampled 4 times per year (once per season) and the Darling downs were sampled once each month. At least 1 h was spent searching for B. tabaci on host plants in and around each town. The first incidence of SLW at a number of locations was noted, with SLW found at Biloela in July 1996; St Georges, Goondiwindi and Warra in January 1998; Emerald and Comet in May 1998; and St George irrigation area in April 1998. A closely related indigenous biotype was found in all areas throughout the two years. Rates of parasitism were variable with Encarsia spp. and Eretmocerus spp. common in all areas. The distribution of SLW and control measures are discussed.
机译:提出了关于监测烟叶粉虱(Beamia tabaci B-生物型)的报告。从1996年冬季开始,对澳大利亚昆士兰州的所有主要棉花种植区进行了调查,以了解粉虱,其寄主和天敌的分布。中央高原(Dawson-Callide),圣乔治(St George)和贡迪温迪(Goondiwindi)每年进行4次采样(每个季节一次),而Darling downs则每月进行一次采样。在每个城镇及其周围的寄主植物上花费至少1小时的时间来寻找烟粉虱。值得注意的是,SLW在许多地方都是首次发生,1996年7月在Biloela发现了SLW。 1998年1月,圣乔治,贡迪温迪和瓦尔拉; 1998年5月的翡翠和彗星;以及1998年4月的圣乔治灌区。在过去的两年中,所有地区都发现了密切相关的本地生物型。寄生虫的发生率随Encarsia spp的变化而变化。和Eretmocerus spp。在所有领域都很普遍。讨论了SLW的分布和控制措施。

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