Reidentification of Sex Pheromones of Tea Geometrid Ectropis obliqua Prout (Lepidoptera: Geometridae)
Reidentification of Sex Pheromones of Tea Geometrid Ectropis obliqua Prout (Lepidoptera: Geometridae)
复制标题
茶尺蠖性信息素的重新鉴定（鳞翅目：尺蠖科）
DOI：
10.1093/jee/tov282
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发表时间：
2016-02-01
影响因子：
2.2
通讯作者：
Wan, Xiaochun
中科院分区：
文献类型：
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作者：
Yang, Yunqiu;Zhang, Longwa;Wan, Xiaochun
摘要/ Abstract摘要：茶尺蠖（lepid翅目：尺蠖科）是中国山茶的重要食叶昆虫。斜翅蝽的性信息素尚未被鉴定，但对其生物防治具有潜在的重要性。本研究鉴定并评价了斜纹夜蛾的雌性性信息素，为斜纹夜蛾的监测和大规模诱捕提供依据。对性信息素提取物进行气相色谱-天线图检测和气相色谱-质谱分析。合成了鉴定出的化学物质，并应用于风洞试验和现场试验。结果表明（Z，Z，Z）-3,6,9-十八烯和6,7-环氧-(Z，Z)-3,9-十八烯是雌性斜叶蝉产生的主要性信息素；后者引起雄斜叶蝉触角的电图反应最强。然而，在风洞试验中，雄性对单一成分没有反应。田间诱捕实验结果表明，（Z，Z，Z）-3,6,9-十八烯与6,7-环氧-(Z，Z)-3,9-十八烯以4:6 v/v混合，可有效诱捕雄蛾。
Abstract Tea geometrid Ectropis obliqua Prout (Lepidoptera: Geometridae) is an important defoliator of the tree crop Camellia sinensis L. in China. The sex pheromones of E. obliqua have not been identified, but have potential importance relative to the biological control of this predator. In this study, the female sex pheromones of E. obliqua were identified and evaluated for use in the monitoring and mass trapping of this pest. The sex pheromone extracts were subjected to gas chromatography–electroantennographic detection and gas chromatography–mass spectrometry. The identified chemicals were synthesized and applied to wind-tunnel tests and field experiments. (Z,Z,Z)-3,6,9-octadecatriene and 6,7-epoxy-(Z,Z)-3,9-octadecadiene were determined to be the primary sex pheromones produced by the female E. obliqua; the latter elicits the strongest electroantennogram responses from male E. obliqua antennae. However, males did not respond to single components in the wind-tunnel tests. The results of a field-trapping experiment indicated that a 4:6 v/v blend of (Z,Z,Z)-3,6,9-octadeca-triene and 6,7-epoxy-(Z,Z)-3,9-octadecadiene was highly effective in attracting male moths.