中国生物防治学报2018，Vol.34Issue(1)：86-91,6.DOI:10.16409/j.cnki.2095-039x.2018.01.010
玫烟色棒束孢对多种刺吸式口器害虫防治潜力的室内评测
Laboratory Assessment on Virulence of Isaria fumosorosea against Multiple Species of Sucking Insects
摘要
Abstract
Laboratory assessment was conducted to determine the virulence of Isariafumosorosea Ifu13a against multiple sucking insect species that are serious pest of crops and ornamental plants.Pathogenicity ofI.fumosorosea against the insect species,Stephanitis nashi (Hemiptera:Tingidae),Jacobiasca forrnosana (Hemiptera:Cicadellidae),Trialeurodes vaporariorum (Hemiptera:_Aleyrodidae) were determined by exposing them to conidia suspension of I.fumosorosea at 1.0 × 108,1.0 × 107,1.0 × 106,and 1.0 × 105 conidia/mL.The strain Ifu13a showed high pathogenicity to J.formosana and T.vaporariorum adults and 100％ corrected mortality was observed in the treatments with conidia concentrations over 1.0 × 106 conidia/mL.Half lethal time (LT50) to J.formosana and T.vaporariorurn increased from 4.12 d to 5.43 d and 4.77 d to 5.32 d,respectively,with inoculated concentration decreased from 1.0 × 108 to 1.0 × 106 conidia/mL.Half lethal concentration (LC50) to J.formosana and T.vaporariorum was 3.90 × 103 and 3.03 × 104 conidia/mL,respectively.Relatively weak pathogenicity was observed to S.nashi,in which the highest corrected mortality of 81.25％ occurred in the 1.0× 108 conidia/mL treatment.Accordingly,the LC50 for S.nashi was determined at 6.88 × 105 conidia/mL.The strain Ifu13a showed great potential on simultaneous control of multiple sucking insects.关键词
玫烟色棒束孢/梨冠网蝽/小绿叶蝉/温室白粉虱/致病性Key words
Isaria fumosorosea/Stephanitis nashi/Jacobiasca formosana/Trialeurodes vaporariorum/pathogenicity分类
农业科技引用本文复制引用
王滨,曹娜,GHULAM Ali Bugti..玫烟色棒束孢对多种刺吸式口器害虫防治潜力的室内评测[J].中国生物防治学报,2018,34(1):86-91,6.基金项目
国家自然科学基金(31471822) （31471822）
