小地老虎发生为害的特点是:越冬代成虫出现早,产卵量大,趋食性和趋光性强,晚春早夏蔬菜及果木花蜜、发酵物质都是它的食料;成虫夜晚趋飞灯光,白天躲藏在草堆、墙缝、椽隙、土块下。越冬代成虫产下的卵抵抗寒冷、旱涝的能力强,这时卵和幼虫的天敌很少。幼虫适应在土壤表层生活,所以卵的孵化率和幼虫的成活率都大。幼虫多发生在湿度大、杂草多、苗茎肥嫩的农作物田内,因而玉米、高粱、 The occurrence of small tiger is characterized by pests: overwintering generation of adults appear early, spawning, ecotrophic and phototaxis strong, early spring and early summer vegetables and fruit nectar, fermented material is its food; adult fly night light, hide during the day In the haystacks, wall cracks, rafters, earth blocks. Overwintering generation of eggs produced by eggs against cold, drought and flood ability, then eggs and larvae few natural enemies. Larvae adapt to living on the surface of the soil, so egg hatching and larvae survival rates are large. More larvae occur in the humidity, weeds and more seedlings stems and fat crop fields, so corn, sorghum,