Evaluation of mirid predatory bugs and release strategy for aphid control in sweet pepper
Evaluation of mirid predatory bugs and release strategy for aphid control in sweet pepper
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DOI：
10.1111/jen.12170
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发表时间：
2015-06-01
影响因子：
1.9
通讯作者：
Tavella, L.
中科院分区：
文献类型：
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作者：
Messelink, G. J.;Bloemhard, C. M. J.;Tavella, L.
蝼蛄科（异翅目）的食草性捕食者，以植物和猎物为食，通常与某些寄主植物保持着密切的关系。在本研究中，我们的目的是选择一种合适的昆虫捕食性昆虫来控制甜椒蚜虫。比较了四个物种：Macrolophus pygmaeus (Rambur)、Dicyphus errans (Wolff)、Dicyphus tamaninii Wagner 和 Deraeocoris pallens (Reuter)。评估了它们在有和没有补充食物（面粉蛾 Ephestia kuehniella Zeller 的卵和丰年虾 Artemia franciscana Kellogg 的脱囊包囊）的甜椒植物上的定植情况，以及在蚜虫侵染前后释放对蚜虫的影响。没有一种捕食者能够控制甜椒植物上已建立的蚜虫种群；然而，捕食者 M.pygmaeus 和 D.tamaninii 在人为引入蚜虫侵扰之前释放它们可以成功减少蚜虫数量。使用M.pygmaeus 与每周施用补充食品相结合可获得最佳效果。因此，我们的结果表明，蚜虫和蚜虫在植物上定植的顺序和水平决定了生物防治的成功程度。需要进一步的研究来评估商业温室中存在多种害虫和天敌的甜椒作物中的食肉性昆虫的表现，特别是了解食物来源变化的增加如何影响它们的摄食行为和偏好。
Zoophytophagous predators of the family Miridae (Heteroptera), which feed both on plant and prey, often maintain a close relationship with certain host plants. In this study, we aimed to select a suitable mirid predatory bug for aphid control in sweet pepper. Four species were compared: Macrolophus pygmaeus (Rambur), Dicyphus errans (Wolff), Dicyphus tamaninii Wagner and Deraeocoris pallens (Reuter). They were assessed on their establishment on sweet pepper plants with and without supplemental food (eggs of the flour moth Ephestia kuehniella Zeller and decapsulated cysts of the brine shrimp Artemia franciscana Kellogg) and on their effects on aphids with releases before and after aphid infestations. None of the predator species was able to control an established population of aphids on sweet pepper plants; however, the predators M.pygmaeus and D.tamaninii could successfully reduce aphid populations when released prior to an artificially introduced aphid infestation. The best results were achieved with M.pygmaeus in combination with a weekly application of supplemental food. Hence, our results demonstrate that the order and level of plant colonization by mirid predators and aphids determines how successful biological control is. Further studies are needed to evaluate the performance of mirid predatory bugs in sweet pepper crops in commercial greenhouses with multiple pests and natural enemies, in particular to understand how increased variation in food sources affects their feeding behaviour and preferences.