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小地老虎的幼虫在土内将幼苗茎部咬断,并拖入洞口。造成缺苗,是苗圃的主要地下害虫之一。小地老虎的成虫是一暗灰色的蛾子,体长8分左右,前翅深灰色,有三角形小斑,后翅灰白色。幼虫身体为深绿或褐灰等色,体表极粗糙、密布黑色颗粒,蛹赤褐色有光泽。防治小地老虎以综合措施为好。主要有以下几种方法:1、清除苗圃附近的杂草,消灭产卵场所。2、出苗前或定苗后,用鲜草或菜叶200斤切成1寸左右,加90%敌百虫2斤,加
The larvae of the young tiger snap the seedling stem in the soil and drag it into the hole. Lack of seedlings, is one of the main underground pests nursery. Small tiger adult is a dark gray moth, body length of about 8 minutes, forelegs dark gray, triangular small spots, hind wings gray-white. Larvae body dark green or brown and other colors, body surface is very rough, dense black particles, pupa auburn shiny. Prevention and treatment of tigers to comprehensive measures as well. There are several ways: 1, clear weeds near nurseries, eliminate spawning sites. 2, before emergence or Dingmiao, with fresh grass or leaves 200 pounds cut into about 1 inch, add 90% trichlorfon 2 pounds, plus