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首页> 外文期刊>African Entomology >Some cultural strategies to help manage Bemisia tabaci (Hemiptera: Aleyrodidae) and whitefly-transmitted viruses in vegetable crops
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Some cultural strategies to help manage Bemisia tabaci (Hemiptera: Aleyrodidae) and whitefly-transmitted viruses in vegetable crops

机译：一些文化策略可帮助管理蔬菜作物中的烟粉虱（Hemiptera：Aleyrodidae）和粉虱传播的病毒

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摘要

The sweetpotato whitefly, Bemisia tabaci (Gennadius), is an important global pest of numerous crops as a result of its feeding and whitefly-transmitted plant viruses. To help develop a strategy to manage this pest and associated viruses in three vegetable crops in the Egyptian agricultural system, experiments on several cultural techniques were conducted. Cultural practices of mulching with white polyethylene, intercropping with maize (Zea mays L.), and crop rotation with maize resulted in reduced whitefly populations and reduced incidences of viruses in cucumber (Cucumis sativus L.), squash (Cucurbita pepo L.) and tomato (Solarium lycopersicum L.). However, no benefit in whitefly abundance and virus incidence was obtained from modifying the planting time by one month earlier than standard planting. There was a high correlation between whitefly abundance and virus incidence. Based on viral symptoms, up to 75 % infection was observed in untreated plots, while most of the treated plots had less than40 % infection. The viruses affecting the crops were Cucumber vein yellowing virus in cucumber, Squash leaf curl virus in squash, and Tomato yellow leaf curl virus in tomato; they are common problems in Egypt. The first-mentioned virus is caused by an Ipomovirus in the family Potyviridae while the other two are Begomovirus in the family Geminiviridae. The cultural management strategies utilized in this study are viable tools to help manage B. tabaci and associated viruses in vegetable crops.
机译：甘薯粉虱Bemisia tabaci（Gennadius）是由于其摄食和粉虱传播的植物病毒而成为多种作物的重要全球害虫。为了帮助制定一种策略来管理埃及农业系统中三种蔬菜作物中的这种害虫和相关病毒，进行了几种文化技术的实验。用白色聚乙烯覆盖，与玉米间作（Zea mays L.）和与玉米轮作的文化习俗导致粉虱种群减少，黄瓜（Cucumis sativus L.），南瓜（Cucurbita pepo L.）和番茄（Solarium lycopersicum L.）。但是，将种植时间比标准种植时间提前一个月，无法在粉虱丰度和病毒发生率方面带来任何好处。粉虱丰度与病毒发生率之间存在高度相关性。根据病毒症状，在未处理的地块中观察到高达75％的感染，而大多数处理过的地块的感染率不到40％。影响作物的病毒包括黄瓜中的黄瓜静脉黄变病毒，南瓜中的南瓜卷叶病毒和番茄中的番茄黄叶卷叶病毒。它们是埃及的普遍问题。提到的第一种病毒是由马铃薯痘病毒科中的一种致病病毒引起的，而其他两种病毒是双子病毒科中的乙状病毒。在这项研究中使用的文化管理策略是可行的工具，可以帮助管理蔬菜作物中的烟粉虱和相关病毒。

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