Key Laboratory for Forest Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China.
Z Naturforsch C J Biosci. 2012 Jul-Aug;67(7-8):437-44. doi: 10.1515/znc-2012-7-812.
Olfactory responses of the gypsy moth Lymantria dispar (L.) (Lepidoptera: Lymantriidae), a major defoliator of deciduous trees, were examined in Inner Mongolia, China. We studied whether the gypsy moth adults are attracted by the major volatile organic compounds (VOCs) of damaged Larix gmelinii (Dahurian larch) foliage and compared the attractiveness of the plant volatiles with that of the synthetic sex pheromone. Our results indicated that the VOCs of the Dahurian larch were effective in attracting gypsy moth males especially during the peak flight period. The VOCs also attracted moths significantly better than the sex pheromone of the moth. Our study is the first trial to show the responses of adult gypsy moths to volatile compounds emitted from a host plant. Electroantennogram responses of L. gmelinii volatiles on gypsy moths supported our field observations. A synergistic effect between host plant volatiles and sex pheromone was also obvious, and both can be jointly applied as a new attractant method or population management strategy of the gypsy moth.
中国内蒙古对舞毒蛾（Lymantria dispar）（鳞翅目：毒蛾科）的嗅觉反应进行了研究，舞毒蛾是落叶树的主要食叶害虫。我们研究了成年舞毒蛾是否会被受损的兴安落叶松（Dahurian larch）树叶的主要挥发性有机化合物（VOC）吸引，并比较了植物挥发物与合成性信息素的吸引力。我们的结果表明，兴安落叶松的 VOC 对舞毒蛾雄蛾具有吸引力，尤其是在高峰期飞行期间。与舞毒蛾的性信息素相比，VOC 也能显著吸引飞蛾。本研究首次证明了成年舞毒蛾对来自寄主植物的挥发性化合物的反应。舞毒蛾触角对兴安落叶松挥发物的电生理反应也支持了我们的田间观察。寄主植物挥发物和性信息素之间也存在协同作用，两者可以共同作为舞毒蛾的一种新的引诱方法或种群管理策略。
