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蚜虫为多种作物的重要害虫,为了探索蚜虫生物防治的途径,我们初步对辽宁地区食蚜蝇进行了种类调查,共收集到食蚜蝇21种,初步定名的有12种,其中9种确定取食蚜虫;对其中主要种类大灰食蚜蝇、黑带食蚜蝇、斜斑鼓额食蚜蝇,短翅细腹食蚜蝇等的生物学特性及对蚜虫控制作用作了初步观察,结果表明5月初、6月初是控制麦蚜增长的重要因素。这些材料为今后蚜虫的生物防治和天敌资源保护利用提供一定依据。
Aphids are important pests for many crops. In order to explore avenues for aphid biological control, we conducted a preliminary survey of the species of hoverflies in Liaoning Province. Totally 21 species of hoverflies were collected and 12 were initially named, of which 9 were identified Aphid feeding on the main species of which large gray-eyed hides and flies, Black-eyed hoverfly, Apatheidae hoverfly, short-winged Holstein and other biological characteristics and control of aphids made a preliminary observation, The results show that early May and early June are important factors controlling the growth of wheat aphids. These materials will provide some evidences for future biological control of aphids and protection and utilization of natural enemy resources.