›› 2001, Vol. 44 ›› Issue (4): 541-547.

• 研究论文 • 上一篇    下一篇

茶蚜体表漂洗物对天敌的引诱活性及组分分析

韩宝瑜   

  • 出版日期:2001-11-20 发布日期:2001-11-20

Attractive activity to natural enemies and component analysisof the rinses from tea aphid body surface

HAN Bao-yu   

  • Online:2001-11-20 Published:2001-11-20

摘要: 行为生测和触角电位反应都证明茶蚜Toxoptera aurantii体表的正己烷或乙醚漂洗物对茶蚜重要天敌中华草蛉Chysopa sinica、蚜茧蜂Aphidius sp.和七星瓢虫Coccinella septempunctata具有显著的引诱效应,正己烷漂洗物的活性稍强。GC、GC-MS分析表明正己烷漂洗物中主要组分是苯甲醛、十一烷、2, 5-己二酮、2,5-二氢噻吩、芳樟醇、萘、4-甲基-辛烷、1, 2-苯甲酸-双-(二丁基-邻苯二甲酸甲酯)、二丁基-邻苯二甲酸甲酯和二十烷,其中苯甲醛、2, 5-己二酮和芳樟醇含量稍大。乙醚漂洗物中主要组分为反-2-己烯酸、正十七烷、2,6,10,14-四甲基十五烷、二十烷、四甲基四十烷、二丁基-邻苯二甲酸酯和十九烷,前2种组分含量较大。

关键词: 茶蚜, 体表漂洗物, 引诱活性, 天敌昆虫, 组分分析, 行为生测, 触角电位

Abstract: With behaviour bioassay and electroantennogram investigation,it is found that both n-hexane and ether rinses from tea aphid body surface showed obvious attractive activity to its important natural enemies Aphidius sp., Chrysopa sinica, and Coccinella septempunctata and the attractive activity of n-hexane rinse was slight stronger. GC and GC-MS analyses showed that the main components in n-hexane rinse were undecane, benzaldehyde, 2,5-hexanedione, 2,5-dihydro-thiophene, linallol, naphthalene,-4-methyl-octane, 1,2-benzenedicarboxylic acid, bis (dibutyl phthalate), dibutyl phthalate and eicosane, in which the amounts of benzaldehyde, 2,5-hexanedione and linalool were a little more than the others. The main components from ether rinse were E-2-hexenoic acid, heptadecane, 2,6,10,14-tetramethyl-pentadecane, eicosane, tetratetracontane, dibutyl phthalate and nonadecane, among which the amounts of E-2-hexenoic acid and heptadecane were much more.

Key words: Toxoptera aurantii, body surface ringe, attractive activity, natural enemies, component analysis, behaviour bioassay, electroantennogram