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一、地老虎地老虎俗名截虫,属鳞翅目夜蛾科。以幼虫为害大豆,将茎基部咬断,造成作物严重缺苗断垄,甚至毁种。1、形态特征白边地老虎成虫体长15~18mm,翅展42~45mm,灰褐色。前翅有明显的灰白色宽边,环形纹、肾形纹皆为灰褐色。幼虫体长43~46mm,腹部背面毛片后面2个比前面2个稍大,臀板黄褐色,体表光滑无颗粒。2、生活习性地老虎幼虫白天潜伏土中,夜晚出土危害。1年发生1
First, the tiger to the tiger common name insects, is a Lepidoptera nymphalidae. Larvae damage to soybeans, the base of the sebaceous snapped, resulting in serious lack of crop seedlings broken ridge, and even destroyed species. 1, Morphological characteristics White tiger adult body length 15 ~ 18mm, wingspan 42 ~ 45mm, taupe. Wings have obvious broad-white edge, ring pattern, kidney-shaped are all beige. Larvae body length 43 ~ 46mm, abdomen behind the back of the back 2 slightly larger than the front two, hip board brown, smooth surface without particles. 2, habits and habits of tiger larvae hidden in the soil during the day and night unearthed hazards. Happen in 1 year