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Study on toxicity of Beaumeryia bassiana MZ041016 strain mixed with chemical pesticide On Rhopalosiphum padi

Kong Qiong, Yuan Shengyong, Guo Ya-li, Hongrui Zhang, Tian Xue-jun, He Li

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Abstract

采用PDA培养基培养球孢白僵菌(Bauveria bassiana)MZ04l0l6菌株分生孢子,测定不同浓度的分生孢子液对禾谷缢管蚜的毒力,将其最佳防效浓度的孢子液分别与常规浓度稀释10倍和100倍的阿希米、胜蚜、比其乐、赛比4种化学农药混配,测定其增效作用.结果表明,球孢白僵菌Mz041016菌株在孢子浓度为4.2×lO7个ml时对禾谷缢管蚜的毒力效果较好,其累计校正死亡率为71.30%.浓度为4.2×107个/ml的分生孢子液与稀释10倍、100倍的4种农药混配,lO倍稀释液以比其乐增效最高,达4%;比其乐100倍液增效达7%,赛比100倍液增效达6%;而与阿希米、胜蚜混用均表现为拮抗,且阿希米拮抗作用最明显,增效为-23%.

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采用PDA培养基培养球孢白僵菌(Bauveria bassiana)MZ04l0l6菌株分生孢子,测定不同浓度的分生孢子液对禾谷缢管蚜的毒力,将其最佳防效浓度的孢子液分别与常规浓度稀释10倍和100倍的阿希米、胜蚜、比其乐、赛比4种化学农药混配,测定其增效作用.结果表明,球孢白僵菌Mz041016菌株在孢子浓度为4.2×lO7个ml时对禾谷缢管蚜的毒力效果较好,其累计校正死亡率为71.30%.浓度为4.2×107个/ml的分生孢子液与稀释10倍、100倍的4种农药混配,lO倍稀释液以比其乐增效最高,达4%;比其乐100倍液增效达7%,赛比100倍液增效达6%;而与阿希米、胜蚜混用均表现为拮抗,且阿希米拮抗作用最明显,增效为-23%.

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Available abstract

采用PDA培养基培养球孢白僵菌(Bauveria bassiana)MZ04l0l6菌株分生孢子,测定不同浓度的分生孢子液对禾谷缢管蚜的毒力,将其最佳防效浓度的孢子液分别与常规浓度稀释10倍和100倍的阿希米、胜蚜、比其乐、赛比4种化学农药混配,测定其增效作用.结果表明,球孢白僵菌Mz041016菌株在孢子浓度为4.2×lO7个ml时对禾谷缢管蚜的毒力效果较好,其累计校正死亡率为71.30%.浓度为4.2×107个/ml的分生孢子液与稀释10倍、100倍的4种农药混配,lO倍稀释液以比其乐增效最高,达4%;比其乐100倍液增效达7%,赛比100倍液增效达6%;而与阿希米、胜蚜混用均表现为拮抗,且阿希米拮抗作用最明显,增效为-23%.

Key concepts: Rhopalosiphum padi, Pesticide, Strain (injury), Toxicity, Beauveria bassiana, Toxicology, Agronomy, Biology

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