两种不同颜色杯形诱捕器对落叶松球果花蝇诱捕效果的比较

The Trapping Effects of Two Different Color Cup Traps on Larch Cone Flies

为比较蓝杯、黄杯诱捕器对落叶松球果花蝇的诱捕效果 ,以及蜜源对诱捕效果的影响 ,2 0 0 0年在大兴安岭地区加格达奇林业技术推广站落叶松种子园内进行了诱捕试验。诱到花蝇 4种 ,共 90头。其中 ,蓝杯诱蝇6 2头 ,占诱捕总量的 6 8.9% ;黄杯诱蝇 2 8头 ,占诱捕总量的 31.1%。无蜂蜜诱捕器的诱捕量占总诱捕量的6 7.8% ,有蜜的诱捕量仅占 32 .2 %。诱捕结果表明 ,蜂蜜不能增强诱捕效果 ,无蜜蓝杯诱捕器诱捕效果最佳。 2 0 0 0年 ,大兴安岭地区稀球果花蝇数量最多 ,在种团中的相对比例为 4 1.1% 。

The influence of trap color and honey on the response of the flies ( Strobilomyia spp.) infesting Dahurian larch was investigated in 2000 in larch seed orchard in Jiagedaqi of Daxing'anling. A total of 90 flies of 4 species were caught. Among of it, blue cups caught 62, the proportion to the total is 68.9%; yellow cups caught 28, the proportion to the total is 31.1%. The cups that were not smeared with honey of 1cm ring caught more flies, the proportion to the total is 67.8%, the cups smeared with honey of 1cm ring caught less flies, the proportion to the total is merely 32.2%. The results showed that honey could not help the cup traps to catch more flies and the blue cups without honey ring caught most flies. The number of Strobilomyia infrequens was higher than that of S. melaniola , S. laricicola and S. svenssoni respectively in 2000 in Jiagedaqi, its proportion to the total was 41.1%.