不同地理种群亚洲玉米螟越冬幼虫复苏后的发育历期研究

Research on the Development Period of Over-wintering Larvae of Different Geographic Populations of Asian Corn Borer

通过对廊坊、衡水、阜新、公主岭、双鸭山和哈尔滨6个地区3种化性的玉米螟越冬幼虫复苏后发育至化蛹历期的研究,得出3种不同化性种群间的玉米螟幼虫复苏后发育至化蛹的历期有明显差异,而相同化性种群间的玉米螟幼虫复苏后发育至化蛹的历期无明显差异。一、二化性的种群化蛹盛期较明显,而三化性的种群则无明显的化蛹盛期。

The development period of over-wintering larvae of three vohinisms Asian corn borer in Langfang, Hengshui, Fuxin,Gongzhuling,Shuangyashan,Haerbin from resuscitation to pupation was studied. The results showed that the development period was different among the different vohinism groups,and it was same within the same vohinism groups. The the pupation peak of the univoltine groups and the bivohine groups were obvious, but the trivohine groups were not obvious.