结果表明：这一地区影响二代玉米螟分化的主要因子是幼虫期的光照周期和温度。
It was found that the major factors determining the differentiation of the Asian corn borer in the second generation were photoperiod and temperature in the larval period in that area.
两种钩虫在皮肤和肌肉内的形态与侵入宿主前的第3期幼虫相似。
Both species during their skin and muscle stages are similar to the 3rd stage larvae before entering hosts.
卵、幼虫利蛹的历期有待进一步研究。
应用推荐