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众所周知,甜菜象虫(Bothynoderes punc-tiventris Germ.)是甜菜苗期毁灭性害虫,由于这一害虫的为害,使石河子地区1959年糖甜菜的生产遭到很大的损失.据不完全统计,毁灭面积在万亩以上.在甜菜象虫研究中表明,该虫生活史是严格的一化性,以成虫羽化后就原土室越冬,翌年日平均气温8.6℃即开始出土,越冬后出土成虫首先取食幼嫩野生藜科及苋科植物,逐渐迁入甜菜地为害,在大量补充营养
As we all know, Bothynoderes punc-tiventris Germ. Is a beetle seedling devastating pest, due to the pest damage, Shihezi area in 1959 sugar beet production suffered a great loss.According to incomplete statistics, destruction An area of more than mu in beetle insects research shows that the pest life is a strict one of the nature of the adult emergence of the earth room overwinter after the emergence of the next year the average temperature of 8.6 ℃ that began unearthed after the winter unearthed adults first Feeding young wild Chenopodiaceae and amaranth plants, gradually moving into the beet damage, in a large number of nutritional supplements