Jian Fuji
Department of Biosystems Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada.
Insects. 2019 Apr 7;10(4):100. doi: 10.3390/insects10040100.
Insect movement inside and outside grain bulks and processed products influences pest management decisions. Movement allows insects to find essential food resources, shelters (refuges), warmer and/or humid locations, mating and egg-laying sites, even when they are rare in fields, buildings, mills, warehouses, and inside grain masses. This review discussed the advantages and disadvantages of stored product insect movements, and the influence of insect mobility on some integrated pest management practices. Insect movement (1) results in clumped insect spatial distributions and thus makes large sample sizes necessary for monitoring; (2) makes trapping more efficient, but is influenced by many factors; (3) allows control methods to be effective, but requires pest management programs to be area-wide; (4) makes eradication of quarantine pests difficult and commodities are quickly re-infested; and (5) results in a diverse genetic pool and speeds the development of resistance to pesticides. Any element of an IPM approach should use the knowledge of insect movement. Reasons for the difficult interpretation of cryptic movement behaviours of insects were provided and future research areas were suggested.
粮堆内部和外部以及加工产品中的昆虫活动会影响害虫管理决策。昆虫的活动使它们能够找到必需的食物资源、庇护所（藏身之处）、温暖和/或潮湿的地方、交配和产卵场所，即使这些在田间、建筑物、磨坊、仓库以及粮堆内部很少见。本文综述了仓储害虫活动的优缺点，以及昆虫活动能力对一些综合害虫管理措施的影响。昆虫活动（1）导致昆虫空间分布呈聚集状态，因此监测时需要大样本量；（2）使诱捕更有效，但受多种因素影响；（3）使防治方法有效，但要求害虫管理计划覆盖整个区域；（4）使根除检疫性害虫变得困难，商品很快会再次受到侵染；（5）导致基因库多样化并加速对杀虫剂抗性的发展。综合害虫管理方法的任何要素都应利用昆虫活动的相关知识。文中给出了难以解读昆虫隐秘活动行为的原因，并提出了未来的研究方向。
