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首页> 外文期刊>Journal of the Brazilian Chemical Society >Synthesis and field evaluation of synthetic blends of the sex pheromone of crocidosema aporema (lepidoptera: Tortricidae) in soybean
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Synthesis and field evaluation of synthetic blends of the sex pheromone of crocidosema aporema (lepidoptera: Tortricidae) in soybean

机译:大豆中隐孢子虫性信息素(鳞翅目:Tor科)的性信息素的合成混合物的合成及田间评价

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摘要

Crocidosema (= Epinotia) aporema (Walsingham) (Lepidoptera: Tortricidae) is a bud borer that feeds on soybean and forage legumes. Its economic importance is restricted to South America, where it can alternate throughout the year between forage and grain legumes. The sex pheromone of C. aporema females is composed of a 15:1 mixture of (7Z,9Z)-dodeca-7,9-dien-1-ol and (7Z,9Z)- dodeca-7,9-dienyl acetate. Aiming at the development of a monitoring tool, it was synthesized both components of the pheromone and evaluated male captures in pheromone traps baited with different blends of synthetic pheromone, in an experimental soybean field in Uruguay. The conjugated dienes were obtained from 2-pentyn-1-ol and 1,7-heptanediol, by oxidation of the former, Wittig coupling and Zn-catalyzed reduction of the triple bond. The 1:1 mixture was the most efficient in capturing males. The pheromone traps were attractive for up to 40 days, even with small septum loads (0.1 mg) and low population levels.
机译:Crocidosema(= Epinotia)aporema(Walsingham)(鳞翅目:Tortricidae)是一种以大豆和牧草为食的feed虫。它的经济重要性仅限于南美,一年四季均可在草料和谷物中交替使用。孢子囊雌性的性信息素由(7Z,9Z)-dodeca-7,9-dien-1-ol和(7Z,9Z)-十二碳-7,9-二烯基乙酸酯的15:1混合物组成。为了开发一种监测工具,在乌拉圭的一个实验性大豆田中,它合成了信息素的两个成分,并评估了用合成信息素的不同混合物诱饵的信息素陷阱中的雄性捕获。共轭二烯是由2-戊炔-1-醇和1,7-庚二醇通过前者的氧化,Wittig偶联和Zn催化的三键还原而制得的。 1:1混合物是捕获雄性动物最有效的方法。信息素诱集装置即使在较小的隔膜负荷(0.1毫克)和较低的种群水平下也能吸引长达40天的吸引力。

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