Reddy Gadi V P, Shrestha Govinda, Miller Debra A, Oehlschlager A Cameron
Western Triangle Agricultural Research Center, Montana State University-Bozeman, 9546 Old Shelby Rd, P.O. Box 656, Conrad, MT 59425, USA.
ChemTica USA, 2912 Enterprise Blvd. Durant, OK 74701, USA.
Insects. 2018 Jun 27;9(3):75. doi: 10.3390/insects9030075.
The pea leaf weevil, , is an important pest of field peas and faba beans worldwide. Present sampling techniques that rely on detection of adult feeding damage are labor intensive, time consuming and require repeated sampling. Semiochemical-based pest monitoring systems could improve pea leaf weevil management. This study, which was conducted in the Golden Triangle region of Montana, tested several factors that potentially might affect capture rates of pheromone-baited traps, including trap and lure type and trap placement. Pheromone-baited pitfall and ramp traps caught significantly more adults than ground or delta traps, in all study areas. Pitfall traps baited with gray rubber septa captured significantly more adults than traps baited with membrane formulations or controls in both pea and lentil fields. In addition, pheromone-baited pitfall traps positioned in the southern part of pea fields captured relatively higher numbers of adults than those placed in northern parts of fields, although this difference was not significant. These findings can be used to improve adult weevil monitoring and should be taken into consideration when developing an integrated pest management program.
豌豆叶象甲是全球豌豆和蚕豆的重要害虫。目前依赖于检测成虫取食危害的采样技术劳动强度大、耗时且需要重复采样。基于信息素的害虫监测系统可以改善豌豆叶象甲的管理。这项在蒙大拿州金三角地区进行的研究，测试了几个可能影响信息素诱捕器捕获率的因素，包括诱捕器和诱芯类型以及诱捕器放置位置。在所有研究区域，信息素诱捕的陷阱和斜坡诱捕器捕获的成虫明显多于地面诱捕器或三角诱捕器。在豌豆田和扁豆田中，用灰色橡胶隔片诱捕的陷阱捕获的成虫明显多于用膜制剂诱捕的陷阱或对照陷阱。此外，放置在豌豆田南部的信息素诱捕陷阱捕获的成虫数量相对高于放置在田北部的陷阱，尽管这种差异不显著。这些发现可用于改进成虫象甲的监测，在制定综合害虫管理计划时应予以考虑。
