Kuhn Denise, Nägele Nils, Tolasch Till, Petschenka Georg, Steidle Johannes L M
Department of Chemical Ecology 190t, Institute of Biology, University of Hohenheim, 70599 Stuttgart, Germany.
Department of Applied Entomology 360c, Institute of Phytomedicine, University of Hohenheim, 70599 Stuttgart, Germany.
Insects. 2024 Sep 24;15(10):736. doi: 10.3390/insects15100736.
The negative impact of pesticides on the environment and the potential of pest species to develop pesticide resistance make it necessary to explore new methods of pest control. Pheromones and other behavior-modifying semiochemicals are already important in integrated pest management (IPM). (E)-ß-farnesene (EBF) is a semiochemical that acts as an alarm pheromone in aphids. Upon perception of EBF, aphids stop feeding, move away, and sometimes even abandon the host plant. The aphids and are significant crop pests and vectors of many harmful phytopathogens affecting sugar beet (). Field trials were conducted at different locations in Germany to test whether dispensers containing a mixture of farnesene isomers (FIMs) including EBF were able to reduce the infestation of these species on sugar beet. Our results showed a reduction in aphid abundance in the FIM-treated patches in two out of three sites. Therefore, we hypothesize that FIM dispensers could prevent aphid infestation and could be used in combination with other IPM measures. However, more research is required to increase the effect and ensure the reliability of this method.
农药对环境的负面影响以及害虫产生抗药性的可能性使得探索新的害虫防治方法成为必要。信息素和其他能改变行为的化感物质在综合害虫管理（IPM）中已经很重要。（E）-β-法尼烯（EBF）是一种化感物质，在蚜虫中充当报警信息素。一旦感知到EBF，蚜虫就会停止取食、离开，有时甚至会放弃寄主植物。蚜虫是重要的作物害虫，也是许多影响甜菜的有害植物病原体的传播媒介。在德国的不同地点进行了田间试验，以测试含有包括EBF在内的法尼烯异构体混合物（FIMs）的 dispenser 是否能够减少这些物种对甜菜的侵害。我们的结果表明，在三个地点中的两个地点，FIM处理过的地块上蚜虫数量有所减少。因此，我们假设FIM dispenser可以防止蚜虫侵害，并可与其他IPM措施结合使用。然而，需要更多的研究来提高这种方法的效果并确保其可靠性。
