甜菜夜蛾在鲁西南地区越冬问题的初步探讨
Approach on the overwintering of Spodoptera exigua in southwest of Shandong.
任兰花1;郝伟1;王继藏2
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DOI:
作者单位:1.山东省菏泽市植物保护站,山东荷泽274025;2.山东省牡丹区植物保护站,东荷泽274000
中文关键词:甜菜夜蛾;鲁西南地区;越冬;过冷却点;发育起点温度;有效积温
英文关键词:Spodoptera exigua; southwest district of Shandong Province; overwinter super cooling point; development threshold temperature; effective temperature
中文摘要:通过对甜菜夜蛾Spodopteraexigua越冬蛹过冷却点、各虫态发育起点温度、有效积温测定,结合10年来田间调查及越冬观察试验,表明甜菜夜蛾在鲁西南地区一般年份不能安全越冬,得出了每年初代虫源来于外地的结论,这对甜菜夜蛾预测预报和综合防治有着重要的指导作用。
英文摘要:The super cooling point,developmental threshold temperature and effective thermal summation of Spodoptera exigua were determined as well as, the field observation and the overwintering experiment nearly for 10 years. The results showed that S. e