不同诱捕方法对苦瓜连作区内3种果实蝇的诱捕效果

Trap effectiveness of different trapping methods for three fruit flies in monocropping bitter gourd fields

探究不同诱捕方法对瓜实蝇Bactrocera cucurbitae(Coquillett)、南亚果实蝇Bactrocera tau(Walker)及橘小实蝇Bactrocera dorsalis(Hendel)的诱捕效果,以便为苦瓜连作区域内的果实蝇监测及绿色防控筛选有效的诱捕器及诱剂。本试验选择3种果实蝇黄色诱捕器、5种食诱剂及2种性诱瓶对3种果实蝇进行田间诱捕。在3种黄色诱捕器中,矩形黄板对瓜实蝇雌虫诱捕率达46.20%,显著高于折叠黄板和速诱瓶(57.00±6.03)头;0.1%呋虫胺与水互溶后,能显著提高其对果实蝇的吸引力;自制酒醋液对果实蝇雌成虫的诱捕率为52.67%,诱雌效果好于其他食诱剂及黄色诱捕器;棒状性诱瓶诱捕效果较好,是夹式诱捕瓶的4.8倍。矩形黄色粘虫板、狂丰杀蝇饵剂及自制糖醋酒液对瓜实蝇雌成虫表现出较好的诱捕效果。综上,同一性诱剂在不同诱捕装置下诱捕力差异较大。因此,国内性诱捕器的标准化对果实蝇的监测及防治有着重要意义。

This research was conducted to investigate the trapping effectiveness of different trapping methods on the melon fly Bactrocera cucurbitae(Coquillett), the South Asian fruit fly Bactrocera tau(Walker)and the oriental fruit fly Bactrocera dorsalis(Hendel), and to screen for traps and lures with better trapping for the monitoring and green control of fruit flies in the bitter gourd monocropping fields. Three common yellow-colored fruit fly traps, five types of food lures and two types of sex trap bottles were used to trap three fruit flies in the field. The trapping rate of rectangular yellow board for female melon fruit flies was 46.20%, significantly higher than that of folded yellow board and speed trap bottle(57.00 ± 6.03 heads);0.1% dinotefuran fly killer bait was significantly more attractive to fruit flies after it was miscible with water. The trapping rate of homemade vinegar alcoholic solution for female adult fruit flies was 52.67%, and the female trapping effectiveness was better than that of other food lures and yellow-colored traps. The trapping effectiveness of rod-shaped sex trap bottles was better and 4.8 times higher than that of clip-on trap bottles. Rectangular yellow sticky boards, Kuangfeng fly bait and homemade sugar and vinegar alcoholic solution showed better trapping effectiveness on female adult melon flies. The trapping ability of the same sex lure varied greatly when used on different trapping devices.Therefore, the standardization of domestic made sex traps is of great significance to the monitoring and prevention of fruit flies.