论文部分内容阅读
甜菜夜蛾Spodopteraexigua（Hubner）属鳞翅目、夜蛾科、灰翅夜蛾属，是一种世界性分布的多食性害虫。从总体上来说，２０世纪８０年代以前该虫在我国尚属偶发性害虫，仅被列为兼治对象；２０世纪８０年代中后期以来逐渐上升为一些农作物，特别是多种蔬菜的重要害虫。该虫幼虫?
Spodopteraexigua (Hubner) belongs to Lepidoptera, Noctuidae and Spodoptera exigua, and is a worldwide pest-eating pest. Generally speaking, the pest was a sporadic pest in our country before the 1980s, and was only classified as a pest control object. It gradually rose to some important pests of crops, especially various vegetables since the middle and late 1980s. The worm larvae?