非嗜食植物次生化合物对节瓜蓟马种群的作用  

Effects of semichemicals of non-preferable plants on the populations of Thrips palmi

作　　者：秦玉洁[1] 吴伟坚[2] 梁广文[2] 

机构地区：[1]华南理工大学环境与工程系,广州510641 [2]华南农业大学昆虫生态研究室,广州510642

出　　处：《植物保护》2004年第4期39-41,共3页Plant Protection

基　　金：国家自然科学基金(39930120)广东省自然科学基金(021031)

摘　　要：用16种非嗜食植物次生化合物对节瓜蓟马实验种群的影响试验表明:对节瓜蓟马成虫产卵驱避作用较好的是松节油和印楝乳油,其驱避率分别为94.12％和81.48％;对成虫拒食作用较大的是印楝乳油、金腰箭和松节油,其拒食率分别为81.25％、70.53％和65.25％。在非嗜食植物次生化合物防治持续效果试验中,24 h后虫口减退率最高,到第9天几乎没有效果。印楝乳油、海芋、桉油和胜红蓟对田间节瓜蓟马种群防治效果分别为82.22％、70.84％、67.94％和48.13％;除桉油对田间天敌有影响外,其余3种对田间节瓜蓟马天敌类群安全。The effects of 16 kinds of semichemicals of non-preferable plants on Thrips palmi were studied in the laboratory. The results showed that the oviposition deterrrent indices (ODI) of turpentine and azadirachtin were 94. 12% and 81.48% , respectively, the best effects compared with other extracts. Azadirachtin, eucalyptus oil and trupentine also had stronger feeding deterrent activity than other extracts to the adults of Thrips palmi. The feeding deterrent indices (FDI) to the adults were 81. 25%, 70. 53% and 65. 25%, respectively. The effects of controlling T. palmi by treating azadirachtin, Ageratum conyzoides, eucalyptus oil and the abstract of Alocasia macrorrhica were 82. 22% , 70. 84% , 67.94% and 48.13%, respectively. The natural enemies could be affected by eucalyptus oil, but the other three compounds could not kill the natural enemies.

关 键 词：植物药理学 植物次生化合物 节瓜蓟马 生物活性 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]