西南林业大学学报2012，Vol.32Issue(6)：64-67,4.DOI:10.3969/j.issn.2095-1914.2012.06.013
象甲虫生真菌对剪枝栎实象幼虫的毒力作用
Evaluation on Virulence of Entomogenous Fungi of Oak Nut Weevil to Larvae of Mechoris ursulus
摘要
Abstract
14 strains of entomogenous fungi were isolated from the Mechoris ursulus nymphae with pathological symptom, and these 14 strains of entomogenous fungi were employed in the virulence test against the M. ursulus nymphae. 2 of the strains, i. e. , NO. 6 and NO. 7 with stronger infestation effect were screened out to conduct the concentration gradient test. The results showed that the median lethal time ( LT50 ) of these two strains was 22. 04 d and 29. 42 d, and the median lethal concentration ( LC50 ) of these two strains was 3. 03 × 105 and 2. 84 × 105 respectively.关键词
剪枝栎实象/虫生真菌/致病性/生物防治/毒力Key words
Mechoris ursulus/ entomogenous fungi/ pathogenicity/ biological control/ virulence分类
农业科技引用本文复制引用
白雪,艾景阳,李冬冬,张智英,苏文华,王旭..象甲虫生真菌对剪枝栎实象幼虫的毒力作用[J].西南林业大学学报,2012,32(6):64-67,4.基金项目
国家自然科学基金(30960061)项目资助. （30960061）
