Suckling David Maxwell, Stanbury Mailee E, Lennon Ox, Colhoun Kate M, Chinellato Fabio, El-Sayed Ashraf M
The New Zealand Institute for Plant & Food Research Limited, Private Bag 4704, Christchurch 8140, New Zealand.
School of Biological Sciences, University of Auckland, Auckland 1010, New Zealand.
Insects. 2020 Sep 11;11(9):622. doi: 10.3390/insects11090622.
This project investigated how kairomone lures, camera traps, and counting software could together contribute to pest management. Images of cumulative daily catch of New Zealand Flower Thrips (NZFT) attracted to a ripe peach lactone (6-pentyl-2H-pyran-2-one; 6-PAP) were automatically loaded to the internet and compared with scanned bases checked weekly using in-house software and manual counting. Camera traps were able to provide thrips counts equivalent to delta traps, but daily and remotely. An 11-fold greater NZFT count occurred within 24 h in passive traps after polyethylene sachets loaded with 250 mg of 6-PAP were placed in trees. Intensive trapping, by placing 1, 2, 4, and 8 traps per tree (500 mg/trap), resulted in a maximum 32-fold increase in thrips per tree. While 6-PAP has proved to be a useful tool for monitoring NZFT numbers, our results suggest that it is not likely to be suitable for mass trapping. Future research should investigate NZFT behavior to better understand population movement on an area-wide basis. Camera traps can be a valuable tool for recording insect flight activity remotely, but the number of traps required for statistically reliable estimates may be prohibitive.
本项目研究了利它素诱捕器、相机陷阱和计数软件如何共同助力害虫管理。被成熟桃内酯（6-戊基-2H-吡喃-2-酮；6-PAP）吸引的新西兰花蓟马（NZFT）每日累计捕获量的图像会自动上传至互联网，并与使用内部软件和人工计数每周检查的扫描基数进行比较。相机陷阱能够提供与三角陷阱相当的蓟马数量统计，但可以每日进行且能远程操作。在树上放置装有250毫克6-PAP的聚乙烯香囊后，被动陷阱在24小时内捕获的NZFT数量增加了11倍。通过在每棵树上放置1、2、4和8个陷阱（每个陷阱500毫克）进行密集诱捕，每棵树的蓟马数量最多增加了32倍。虽然6-PAP已被证明是监测NZFT数量的有用工具，但我们的结果表明它不太可能适用于大规模诱捕。未来的研究应调查NZFT的行为，以便在区域范围内更好地了解种群动态。相机陷阱可以成为远程记录昆虫飞行活动的宝贵工具，但要获得具有统计可靠性估计所需的陷阱数量可能过高。
