沈阳地区不同化性亚洲玉米螟历期和有效积温的研究  

Studies on the Persistent Times and Thermal Constants of Asian Maize Borer Ostrinia Furnacalis (Guenee) in Different Voltinism in Shenyang Area

作　　者：王桂清[1] 忻亦芬[1] 

机构地区：[1]沈阳农业大学,辽宁沈阳110161

出　　处：《沈阳农业大学学报》2000年第5期444-447,共4页Journal of Shenyang Agricultural University

摘　　要：对沈阳地区亚洲玉米螟种群中的一化性与二化性玉米螟各生态历期和有效积温进行系统比较后发现 ,在相同的条件下一化性玉米螟各虫态的历期均比二化性的长 ,各虫态的有效积温一化性的比二化性的高 ,而自然种群的则处于两者之间且偏于后者。This article reported the bionomics of Asian maize borer Ostrinia furnacalis (Guenee) in different voltine ecotypes under constant temperature in Shenyang area. The results showed that their bionomics were different. The persistent times of the univoltine ecotype were longer than that of the bivoltine ecotype in the indices of all stages and the 1st～5th instar larvae under the same conditions. The thermal constants of the univoltine ecotype in all stages were superior to that of the bivoltine ecotype and they were near the latter in the natural world. This indicated that the bivoltine ecotype was dominant in Shenyang area.

关 键 词：亚洲玉米螟 化性 历期 有效积温 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]