Porapak Q-captured volatiles from both sexes of Trypodendron betulae Swaine (Coleoptera: Curculionidae: Scolytinae) excised from newly attacked logs of paper birch, Betula papyrifera Marshall (Betulaceae), as well as volatiles from unattacked birch logs, were analysed by coupled gas chromatographic electroantennographic detection analysis. Active compounds were identified by gas chromatographic mass spectroscopy. The enantiomeric ratio of 6-ethenyl-2,2,6-trimethyloxan-3-ol (linalool oxide pyranoid) was determined using a Cyclodex B column. Field-trapping experiments disclosed that the female-produced aggregation pheromone of T. betulae is a blend of the (3S,6R)-trans- and (3R,6R)-cis-linalool oxide pyranoid. Trap catches were synergistically increased when the pheromone was combined with both the host volatile ethanol and with conophthorin, which was found in female beetles as well as host volatiles. Use of linalool oxide pyranoid reproductively isolates T. betulae from sympatric Trypodendron Stephens species for which only (+)-lineatin has been identified as an aggregation pheromone.

分析了从新攻击的桦木，桦木（Betulaaceae）（Betulaceae）切下的锥虫（Trypodendron betulae Swaine）的两性中Porapak Q捕获的挥发物，以及未受攻击的桦木原木中的挥发物，分析了这两个物种的挥发性。心电图检测分析。活性化合物通过气相色谱质谱法鉴定。使用Cyclodex B柱测定6-乙烯基-2,2,6-三甲基恶烷-3-醇（芳樟醇氧杂吡喃酮）的对映体比率。田间诱捕实验表明，雌性甜菜t的聚集信息素是（3 S，6 R）-trans-和（3R，6 R）-顺式-芳樟醇氧杂吡喃酮。当信息素与宿主挥发性乙醇和伴生蛋白在雌性甲虫和宿主挥发性物质中混合时，陷阱捕获量协同增加。芳樟醇氧化物吡喃类化合物的使用可从同胞锥虫Trypodendron Stephens种中繁殖分离出丁香锥虫，其中仅（+）-lineatin被鉴定为聚集信息素。