Zhang Qing-He, Sheng Maoling, Chen Guofa, Aldrich Jeffrey R, Chauhan Kamlesh R
Sterling International, Inc., 3808 N. Sullivan Rd, Bldg 16BV, Spokane, WA, 99216-1616, USA.
Naturwissenschaften. 2006 Sep;93(9):461-5. doi: 10.1007/s00114-006-0132-z. Epub 2006 Jun 24.
The lacewing Chrysopa septempunctata Wesmael is an important, common predator of several insects in China, Japan, Russia, and many parts of Europe. Our field trapping experiments in northeast China showed that males of this green lacewing are strongly attracted to the lacewing pheromone of Chrysopa oculata Say, (1R,2S,5R,8R)-iridodial. The induced plant volatile, methyl salicylate, was unattractive to C. septempunctata by itself at the concentration tested, but synergistic when combined with iridodial where the lacewing population was high. (1R,4aS,7S,7aR)-Nepetalactol and (4aS,7S,7aR)-nepetalactone (aphid sex pheromone components) caught significantly more males of C. septempunctata than did blank control traps, but were inferior to iridodial dispensers, which remained strongly attractive to C. septempunctata males for at least 2.5 months. These results indicate that (1R,2S,5R,8R)-iridodial is a powerful attractant for C. septempunctata, and may have great potential for enhanced biological control of garden, agricultural, and forest insect pests.
中华草蛉是中国、日本、俄罗斯以及欧洲许多地区多种昆虫的重要常见捕食者。我们在中国东北进行的田间诱捕实验表明，这种草蛉的雄性对眼斑草蛉的草蛉信息素（1R,2S,5R,8R）-虹彩圆柚酮有强烈吸引力。在测试浓度下，诱导植物挥发物水杨酸甲酯本身对中华草蛉没有吸引力，但在草蛉数量较多时与虹彩圆柚酮结合具有协同作用。（1R,4aS,7S,7aR）-荆芥醇和（4aS,7S,7aR）-荆芥内酯（蚜虫性信息素成分）捕获的中华草蛉雄性明显多于空白对照诱捕器，但不如虹彩圆柚酮诱捕器，虹彩圆柚酮诱捕器对中华草蛉雄性的吸引力至少持续2.5个月。这些结果表明，（1R,2S,5R,8R）-虹彩圆柚酮是中华草蛉的一种强力引诱剂，在增强对园林、农业和森林害虫的生物防治方面可能具有巨大潜力。
