多种捕食性天敌控制麦蚜当量系统研究

STUDIES ON THE EQUIVALENT SYSTEM OF WHEAT APHID CONTROLLED BY MIXED APHIDIPHAGOUS PREDATORS

通过饲养，明确了麦蚜主要天敌食蚜蝇类、瓢虫类、草蛉类、蜘蛛类之中８种幼虫和６种成虫（蛛）的取食量。经校正当量系数模式等统计，建立了上述天敌控制麦蚜的当量系统。实例表明，该系统能准确测定复合天敌的控蚜效果，为促进麦蚜综合治理进展提供了一条依据。

Among the major wheat aphidiphagous predators. syrphids. lady beetles. green lacewings and spiders. the predatory amount of 8 species of the larvae and 6 species oftheadults were determined from the laboratory rearing.Their controlling equivalent systemswere established based on the statistics of coefficients of correct equivalency and were usedhorpredictingthe effects of those mixed aphldiphagous predators. which can promote theaphid integrated control program in the wheat fields.