曾鑫年,熊忠华,郭景,黄田福,吴上新. 多杀菌素对红火蚁的毒力及传导毒杀作用[J]. 华南农业大学学报, 2006, 27(3): 26-29. DOI: 10.7671/j.issn.1001-411X.2006.03.007
    引用本文: 曾鑫年,熊忠华,郭景,黄田福,吴上新. 多杀菌素对红火蚁的毒力及传导毒杀作用[J]. 华南农业大学学报, 2006, 27(3): 26-29. DOI: 10.7671/j.issn.1001-411X.2006.03.007
    ZENG Xin-nian,XIONG Zhong-hua,GUO Jing,HUANG Tian-fu,WU Shang-xin. Toxicity and Transferring Activity of Spinosad Against Solenopsis invicta Buren[J]. Journal of South China Agricultural University, 2006, 27(3): 26-29. DOI: 10.7671/j.issn.1001-411X.2006.03.007
    Citation: ZENG Xin-nian,XIONG Zhong-hua,GUO Jing,HUANG Tian-fu,WU Shang-xin. Toxicity and Transferring Activity of Spinosad Against Solenopsis invicta Buren[J]. Journal of South China Agricultural University, 2006, 27(3): 26-29. DOI: 10.7671/j.issn.1001-411X.2006.03.007

    多杀菌素对红火蚁的毒力及传导毒杀作用

    Toxicity and Transferring Activity of Spinosad Against Solenopsis invicta Buren

    • 摘要: 室内测定了生物源杀虫剂多杀菌素对红火蚁的触杀及胃毒毒力,并根据红火蚁的取食生理学,设计出联杯法测定毒饵的传导毒杀活性.结果表明,多杀菌素对红火蚁工蚁的触杀LC50为3.44 mg/L,显著高于对照药剂氟虫腈的LC50值0.76 mg/L;而胃毒LC50为4.22 mg/kg,显著低于氟虫腈的LC50值6.19 mg/kg.联杯法测定结果表明,多杀菌素能通过工蚁的取食和交哺行为进行传导,传导毒力随供药工蚁取食毒饵的活性成分含量上升而增高;当毒饵活性成分为53.64 mg/kg时,处理后8 d受药试蚁死亡率达(64.70±2.37)%.本研究结果显示,多杀菌素对红火蚁具有高胃毒低触杀毒力,适合用于制备红火蚁毒饵的杀虫活性成分,其传导毒杀活性能用联杯法进行测定.

       

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