【作者】 冼继东； 庞雄飞； 梁广文； 曾玲；

【Author】 Xian Jidong Pang Xinogfei Liang Guangwen Zeng Ling(Laboratory of Insect Ecology, South China Agricultural University, Guangzhou 510642)

【机构】 华南农业大学昆虫生态研究室；

【摘要】 本文应用干扰作用控制指数(IIPC)评价了29种植物异源植物次生物质对美洲斑潜蝇实验种群的干扰作用,结果表明:在供试的29种植物乙醇提取物中,含羞草Mimosapudica、马缨丹Lantana camara L、飞机草Eupatorium odoratum L.、大叶桉Eucalyptus robusta和马蔸铃Aristolochia championi的乙醇提取物对美洲斑潜蝇种群的干扰效果较明显,其IIPC值分别为0.2069、0.2301、0.2414和0.2446。同时研究了这4种非寄主植物的乙醇提取物不同浓度对美洲斑潜蝇成虫产卵量的影响,结果为:随着浓度的增加,各提取物的干扰作用控制指数值降低,即对美洲斑潜蝇成虫产卵的干扰作用越大。以非嗜食植物乙醇提取物浓度为lgDW·100ml-1作为防治使用浓度的最适浓度。更多还原

【Abstract】 In the paper, the interference indices of population control (IIPC) were used to evaluate the effects of spraying alcohol extracts of the non-preferable plants on the experimental population of vegetable leafminer Liriomyza sativae Blanchard. The results showed that the alcohol extracts of Mimosa pudica, Lantana camara L., Eupatorium odoratum L.and Eucalyptus robustaMimosa pudica L., gave noticeable effect to protect the plant against Liriomyza sativae Blanchard.The IIPC of these extracts are 0.2069, 0.2301, 0.2414 and 0.2446, respectively, it means that the effects of these extracts were over 70% .In the meanwhile, with the dosage of alcohol extracts of the non-preferable plants increasing, the repelling effects on Liriomyza sativae Blanchard were better and better.更多还原