豆小灰蝶plebejus argus L.属鳞翅目、灰蝶科,是豆科作物的主要害虫之一。受害的主要作物:沙打旺、大豆、绿豆、豇豆、蔬菜等。主要以幼虫咬食叶片的下表皮及叶肉,剩下上表皮,个别啃食叶片正面,剩余下表皮,重的将整个叶片吃光,只剩主脉或叶柄,偶尔也能取食茎的表皮和幼嫩的荚角。 Bees small butterfly plebejus argus L. Lepidoptera, Lepidoptera, is one of the major pests of leguminous crops. Victims of the main crops: Astragalus, soybeans, mung beans, cowpea, vegetables and so on. The main larvae bite the lower epidermis and leaf mesophyll leaves, leaving the upper epidermis, the individual eating the front of the leaves, leaving the lower epidermis, the heavy leaves of the entire eclipse, leaving only the main vein or petiole, and occasionally can take the stem of the epidermis And the young pod angle.