甜菜象虫为甜菜苗期主要害虫,在黑龙江省肇东县发生普遍,危害相当严重。据调查,1978年实播甜菜而积为152,000亩,象虫发生面积为124,000亩,毁种面积77,500亩;1979年实播而积170,000亩,发生面积为144,500亩,毁种面积为90,000亩。1980—81年象虫发生更为严重,由于使用“3911”闷种,基本上控制了为害。但“3911”对人畜有剧毒,使用时很不 Beetle insects are the main pests of sugar beet seedlings, which are common in Zhaodong County, Heilongjiang Province, causing serious damage. According to the survey, in 1978, there were 152,000 mu of beet planted live. The area of ​​the imago was 124,000 mu and the deforestation area was 77,500 mu. In 1979, 170,000 mu of sowing land was sown and the area was 144,500 mu. The devastating area was 90,000 mu. As the 1980-81 elephant insects occurred more serious, due to the use of “3911” boring species, basically control the damage. However, “3911” is highly toxic to humans and animals and is not used very much