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讷河县老莱公社晨光大队一九八○年种甜菜三千七百亩,由于播种质量高,甜菜出苗整齐。可是甜菜幼苗期发生地老虎为害,虫口密度很大,仅据五月十六日调查,四个生产队的六块地,五百二十八埯,抽查到各令地老虎幼虫一百五十四头,平均三点四埯一头,为害十分严重。一到二令地老虎胶食叶片;三到五令地老虎咬断子叶下轴上段,据在二队、五队、十三
Nehe Laolang commune dawn brigade in 1980 kinds of beet three thousand seven hundred acres, due to the high quality of planting, sugar beet neatly. However, in the beet seedling stage, the tiger was detrimental and its insect population density was very high. According to the survey conducted on May 16 alone, the six production sites of the four production teams were located at 528 埯. Fifty-two tiger larvae Four heads, on average, one at a time, cause serious damage. One to two orders of the tiger gum leaves; three to five tiger bite suboccipital subaxial axis, according to the second team, five teams, thirteen