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甜菜夜蛾（Ｓｐｏｄｏｐｔｅｒａｅｘｉｇｕａ（Ｈｕｂｎｅｒ））属鳞翅目夜蛾科。该虫在长江流域呈间发性爆发，近年来，温州地区由于特殊的地理位置及气候条件，适宜其越冬，加上常年使用单一的有机磷或菊酯类农药，致使其成为夏秋季节田间的主要害虫。为尽快解决防治问题，
Spodoptera exigua (Hubner) belongs to the family Lepidoptera. In recent years, due to the special geographic location and climatic conditions, Wenzhou is suitable for its wintering. Combined with the perennial use of single organophosphorus or pyrethroid pesticides, it has become a field in summer and autumn The main pest. In order to solve the prevention and control problem as soon as possible,