Influence of non‐crop plants on stink bug (Hemiptera: Pentatomidae) and natural enemy abundance in tomatoes
Influence of non‐crop plants on stink bug (Hemiptera: Pentatomidae) and natural enemy abundance in tomatoes
复制标题
非农作物植物对番茄中臭虫（半翅目：蝽科）和天敌丰度的影响
DOI：
10.1111/j.1439-0418.2009.01452.x
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
F. Zalom
中科院分区：
文献类型：
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作者：
C. Pease;F. Zalom
在加州的萨克拉门托山谷，我们调查了杂草寄主对蝽象密度和危害的影响（Euschistus conspersus Uhler和Thyanta pallidovirens Stal），以及一种花蜜植物对蝽象天敌的影响。臭虫密度和水果损害进行了评估，在加工番茄杂草和栽培边界附近。密度E. conspersus是显着更大的番茄杂草边界附近的7月，但不是在8月/9月。 Thyanta pallidovirens是不太丰富的整体（19%），但被发现在7月，但不是在8月/9月的种植边界附近的显着更大的密度。平均百分比果实损害的臭虫是更大的杂草边界比栽培边界附近，但这种差异并不显着。在新鲜的市场番茄邻近甜alyssum（Lobularia maritima L.）边界和三个地点的一个未种植的控制边界。9月9日至12日采样期间，在alyssum治疗卵寄生率显着更大。六月中旬，在alyssum处理中，Jalysus wickhami VanDuzee（半翅目：Berytidae）密度显著更大。没有其他显着差异的捕食者种群被检测到。这两项研究的结果表明，生境操作有可能降低密度E. conspersus在番茄，第一步，在制定一个农场景观管理计划，以控制臭虫。
We investigated the effects of weed hosts on stink bug density and damage (Euschistus conspersus Uhler and Thyanta pallidovirens Stal), and a nectar bearing plant on natural enemies of stink bugs in the Sacramento Valley of California. Stink bug density and fruit damage were evaluated in processing tomatoes adjacent to weedy and cultivated borders. The density of E. conspersus was significantly greater in tomatoes adjacent to weedy borders in July but not during August/September. Thyanta pallidovirens was less abundant overall (19%), but was found in significantly greater densities adjacent to cultivated borders in July but not in August/September. Mean percent fruit damage by stink bugs was greater adjacent to the weedy border than the cultivated border, but this difference was not significant. Stink bug egg parasitism and generalist predator density were evaluated in fresh market tomatoes adjacent to a sweet alyssum (Lobularia maritima L.) border and an unplanted control border at three sites. Egg parasitism was significantly greater in the alyssum treatment for the 9–12 September sampling period. Jalysus wickhami VanDuzee (Hemiptera: Berytidae) density was significantly greater in the alyssum treatment in mid‐June. No other significant differences in predator populations were detected. Results of these two studies show that habitat manipulations have the potential to reduce densities of E. conspersus in tomato, the first step in developing a farmscape management plan for stink bug control.