Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position :Home->Past Journals Catalog->2013年50 No.6

The lethal effect of extreme hightemperature on Sitobion avenae
Author of the article:YANG RenFengLI KeBinYIN JiaoDU GuangQingCAO YaZhong
Author's Workplace:State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, China
Key Words:Sitobion avenae, high temperature, mortality rate, halflethal temperature, halflethal time
Abstract:Detailed experiments were conducted to explore the effects of brief exposure to extreme hightemperature(45℃,30、40、50、60、70、80、90 s;50℃,5、10、15、20、25、30、35、40 s;55℃,5、10、15、20 s;60℃,5、10、15 s;65℃,5、10 s;70℃,5 s)on wheat aphids Sitobion avenae (Fabricius) and to measure mortality rates of adults and nymphs. Mortality rates were found to increase with increasing temperature and duration of exposure. The time to complete death of all test animals was 90 s at 45℃, but just 5 s at 70℃. The halflethal temperature decreased with increased treatment time and the halflethal time decreased with increasing temperature. A logistic model indicates that, under the same conditions, the halflethal temperature and the halflethal time of adults are higher than those of nymphs.
 
CopyRight©2024 Chinese Journal of Aplied Entomology