Abdullah Zayed S, Greenfield Bethany Pj, Ficken Katherine J, Taylor James Wd, Wood Martyn, Butt Tariq M
College of Science, Swansea University, Singleton Park, Swansea, SA2 8PP UK.
Department of Geography, Swansea University, Singleton Park, Swansea, SA2 8PP UK.
Springerplus. 2015 Feb 24;4:89. doi: 10.1186/s40064-015-0864-3. eCollection 2015.
Monitoring of pest populations is an essential component of integrated pest management. An early warning system helps growers decide when best to take control measures, or when to alter them, should a control method prove inadequate. Studies have shown that adding chemical attractants to sticky cards can increase trap catch of western flower thrips, Frankliniella occidentalis, a global pest of agriculture and horticulture, giving more accurate accounts of population size and dynamics, thus leading to more efficient monitoring. We identify a novel semiochemical to the species, (S)-(-)-verbenone, showing that addition of this compound to sticky traps significantly increased F. occidentalis catch in two geographically distinct populations, infesting two unrelated crops of global economic importance. We validate through field trials that (S)-(-)-verbenone is highly attractive to F.occidentalis and can be used with blue sticky traps to enhance trap catch, leading to better estimations of pest population densities. The compound may be used in other control methods against F.occidentalis such as lure and kill, mass trapping and push-pull.
监测害虫种群是综合害虫管理的重要组成部分。早期预警系统可帮助种植者决定何时采取最佳控制措施，或者在某种控制方法被证明不足时决定何时改变措施。研究表明，在粘虫板上添加化学引诱剂可以增加西花蓟马（Frankliniella occidentalis）的诱捕量，西花蓟马是一种全球农业和园艺害虫，这样能更准确地了解种群数量和动态，从而实现更有效的监测。我们鉴定出一种该物种的新型信息素，即（S）-（-）-马鞭草烯酮，研究表明，在两个地理上不同的种群中，将这种化合物添加到粘虫板上可显著增加西花蓟马的诱捕量，这两个种群侵害两种具有全球经济重要性的不相关作物。我们通过田间试验验证，（S）-（-）-马鞭草烯酮对西花蓟马具有高度吸引力，可与蓝色粘虫板一起使用以提高诱捕量，从而更好地估计害虫种群密度。该化合物可用于其他针对西花蓟马的控制方法，如诱捕杀灭、大量诱捕和推拉策略。
