中国生物防治学报2024，Vol.40Issue(3)：524-531,8.DOI:10.16409/j.cnki.2095-039x.2023.01.055
苏云金芽胞杆菌G033A对三种赤眼蜂寄生番茄潜叶蛾能力的影响
Effect of Bacillus thuringiensis G033A on the Ability of Three Trichogramma Species to Parasitize Tuta absoluta
摘要
Abstract
Toxicity of Bacillus thuringiensis G033A(Bt G033A)to different instar larvae of Tuta absoluta and effect of Bt G033A on the ability of three Trichogramma species to parasitize T.absoluta were determined by leaf dipping method and feed mixed toxicity method,respectively.The results showed that the LC50 of Bt G033A to the 1st,2nd,3rd,and 4th instar T.absoluta larvae were 25.381,19.537,17.406,and 15.772 g/L,respectively,while Bt G033A was low toxic to the three Trichogramma species.Although the parasitic functional responses of T.ostriniae,T.chilonis and T.dendrolimi to T.absoluta eggs conformed to the Holling II model,the parasitic ability of the three Trichogramma species decreased post treatment with the recommended concentration of Bt G033A in the field.Among them,the parasitism amount(25 eggs/dish:18.600 eggs),prey treatment time(0.012 d),pest control efficiency(84.833),daily parasitism upper limit(83.333 eggs),and prey search efficiency of T.ostriniae in the control group showed that T.ostriniae was superior to T.chilonis and T.dendrolimi.Likewise,T.ostriniae showed higher post-treatment parasitic performance than t the other two Trichogramma species.Therefore,T.ostriniae can be used as one of the high-potential parasitic natural enemies of T.absoluta and can applied in combination with Bt G033A in biocontrol of T.absoluta.关键词
苏云金芽胞杆菌/番茄潜叶蛾/赤眼蜂/寄生功能/搜寻效应Key words
Bacillus thuringiensis G033A/Tuta absoluta/Trichogramma/parasitize function/foraging effect分类
农业科技引用本文复制引用
蒋正雄,陈恒,孙英,周顺文,张金龙,陈国华,朱清清,张晓明..苏云金芽胞杆菌G033A对三种赤眼蜂寄生番茄潜叶蛾能力的影响[J].中国生物防治学报,2024,40(3):524-531,8.基金项目
国家重点研发计划(2021YFD1400200) （2021YFD1400200）
云南省中青年学术技术带头人后备人才项目(202105AC160071) （202105AC160071）
"云南省高层次人才培养支持计划"青年拔尖人才专项(YNWRQNBJ2020291) （YNWRQNBJ2020291）
国家留学基金项目(留金项-2021-15号) （留金项-2021-15号）
