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地老虎是复播玉米苗期主要害虫,1—2龄幼虫危害作物的生长点、心叶,在叶面上危害造成孔眼;3龄以后的幼虫钻入地下危害根茎部,可切断作物幼茎,造成缺苗、断垄,对玉米产量影响很大。1地老虎的危害寄主地老虎主要为害玉米,同时也为害棉花、高粱、甜菜及蔬菜等多种农作物,是农作物苗期的一种毁灭性害虫。2地老虎的生活习性:地老虎在我县一年发生3代~4代,以老熟幼虫在土壤中越冬。翌年春季气温回暖后,越冬幼虫于3月下旬至4月中
The ground tiger is the main pest of the seeding corn seedling. The 1-2 instar larvae endanger the growing point of the crop and the leaf of the heart, which causes the perforation on the foliage. The larvae after the 3rd instar penetrate the underground rhizome and cut off the young stem , Resulting in lack of seedlings, broken ridge, a great impact on corn production. The damage of a tiger to the host The host tiger is mainly harmful to corn, but also for cotton, sorghum, sugar beet and vegetables and other crops, is a devastating pest of the crop seedling. 2 tigers living habits: to a year in my county to 3 generations to 4 generations to mature larvae overwintering in the soil. After the warmer temperatures in the following spring, the overwintering larvae will be in late March to mid April