Effects of distance from field edge on aphidophagous insects in a wheat crop and observations on trap design and placement
Effects of distance from field edge on aphidophagous insects in a wheat crop and observations on trap design and placement
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DOI：
10.1080/096708799228076
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发表时间：
1999-01-01
影响因子：
1.5
通讯作者：
Frampton, CM
中科院分区：
文献类型：
--
作者：
Bowie, MH;Gurr, GM;Frampton, CM
观察了小麦作物，以确定对谷物蚜虫及其天敌的影响，相邻作物的开花油菜（甘蓝型油菜L。）。在油菜田附近捕获的食蚜蝇（双翅目：食蚜蝇科）比在小麦田内捕获的食蚜蝇多，无翅禾谷缢管蚜Rhopalosiphum padi（L.）（半翅目：蚜虫科）的数量较少的边缘比在距离64米或更多的小麦。大量的油菜花粉存在于食蚜蝇的肠道，特别是对昆虫接近，或内，油菜。早期的测试确定了陷阱的最佳颜色、设计和位置。黄色陷阱抓住了大多数食蚜蝇在两个六色比较水盘陷阱进行草地。在小麦中，黄色水盘陷阱在地面上捕获了尽可能多的食蚜蝇，黄色粘性陷阱水平放置在土壤表面或垂直定向的黄色粘性陷阱放置在穗高或土壤水平。只有水盘陷阱捕捉到大量的食蚜蝇幼虫。蚜虫的数量明显减少。（Hytera：茧蜂科）成人被抓获的粘性陷阱放置在穗高度内的作物比其他陷阱。
Observations were made in a wheat crop to determine the effects on cereal aphids and their natural enemies of an adjacent crop of flowering canola (Brassica napus L.). More hoverflies (Diptera: Syrphidae) were caught adjacent to the canola than within the wheat crop, and apterous Rhopalosiphum padi (L.) (Hemiptera: Aphididae) were less numerous in the margin than at distances of 64 m or more into the wheat. Large amounts of canola pollen were present in hoverfly guts, especially for insects caught close to, or within, the canola. Earlier tests determined optimal colour, design and position of traps. Yellow traps caught most hoverflies in two six-colour comparisons of water pan traps conducted on grassed areas. In wheat, yellow water pan traps at ground level caught as many hoverflies as did yellow sticky traps laid horizontally on the soil surface or vertically oriented yellow sticky traps placed at either ear height or at soil level. Only water pan traps caught large numbers of hoverfly larvae. Significantly lower numbers of Aphidius sop. (Hymenoptera: Braconidae) adults were caught on sticky traps placed at ear height within the crop than by other traps.