棉铃虫老熟幼虫有效越冬虫量的分析
The effective overwintering numbers form the 6th instar larvae of cotton bollworm.
戈峰1;丁岩钦1;刘向辉1;王学志2;赵永发2
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DOI:10.7679/j.issn.2095-1353.2001.062
作者单位:1.中国科学院动物研究所,北京100080:2.湖南农业大学植保系,长沙410128
中文关键词:棉铃虫;滞育蛹;有效越冬虫量
英文关键词:cotton bollworm; diapaused pupa; effective overwintering numbers
中文摘要:通过从棉田和玉米田采回的第 4代老熟幼虫的化蛹率和羽化率观察 ,发现棉田和玉米田的老熟幼虫化蛹率分别为 65%~ 83.05%和 55%~ 80% ,其化蛹后的羽化率分别为10%~ 87%和13%~77% ,而且2种寄主作物间无显著差异。由此进一步分析了棉田和玉米田老熟幼虫的有效越冬虫率和有效越
英文摘要:The pupation rates and emergence rates of adults from the 4th generation cotton bollworm were studied in corn field and cotton field of Northern China.The results showed that the 65%~83.05% of pupation rates and 10%~87% of emergence rates of adults fr