Approach on the overwintering of Spodoptera exigua in southwest of Shandong.
Author of the article:REN Lan-Hua1,HAO Wei1,WANG Ji-Cang2
Author's Workplace:(1.Plant Protection Station of Heze City, Shangdong Province,Heze 274025,China;2.Plant Protection Station of Mudan District,Heze 274000,China)
Key Words:Spodoptera exigua; southwest district of Shandong Province; overwinter super cooling point; development threshold temperature; effective temperature
Abstract: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