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本文报道了小蠢虫聚集激素主要成分4-甲基-3-庚醇的四种对映异构体对大榆棘胫小蠹(Scolytus scolytus)的诱引作用。研究表明仅有(-)-苏-异构体比对照诱到显著多的小蠹虫。该虫对这种异构体的反应与对商品4-甲基-3-庚醇(包括上述四种异构体)的反应没有什么不同,所以在虫情调查和捕杀大榆棘胫小蠹时仍可使用4-甲基-3-庚醇。在过去十年中,已有100多种能改变和调节昆虫行为的天然化合物得到分离和鉴定。这些物质在调查、监察虫情方面,在用诱捕法和迷向法防治害虫方面或者在综合防治程序中的潜在作用业已被确认。对于森林害虫,引诱剂能用来发现和监察落叶松卷叶蛾(Zeirapheradiniana)和云杉卷叶蛾(Choristoneura fumi-
This paper reports the induction of four enantiomers of 4-methyl-3-heptanol, the major component of the flies bugs hormones, on Scolytus scolytus. Studies have shown that only the (-) - S-isomer induced significantly more Bark beetle than the control. The insects’ response to this isomer was no different from the reaction on the commercial 4-methyl-3-heptanol (including the above four isomers), so the investigation and killing of Beech Timber Beetles 4-methyl-3-heptanol can still be used. Over the past decade, more than 100 natural compounds that alter and regulate insect behavior have been isolated and identified. The potential role of these substances in surveying, monitoring insects, controlling pests by trapping and fan-hunting methods or in integrated control programs has been identified. For forest pests, attractants can be used to detect and monitor the presence of Zeirapheradiniana and Choristoneura fumi-