云南省畹町林区松墨天牛诱捕效果初报

Preliminary Report of Trap Efficiency of Different Attractants on Monochamus alternatus Hope from Wanding Forest in Yunnan Province

通过林间试验比较了不同引诱剂在云南省畹町林区引诱松墨天牛成虫的效果。结果显示,使用引诱剂I时每个诱捕器平均可捕获15头成虫,使用引诱剂II时每个诱捕器平均可捕获天牛成虫2头,使用引诱剂III的效果与引诱剂II相当。在林区不同方位的诱捕试验结果显示,松墨天牛成虫在不同方位的发生程度表现为西>北>东>南。在畹町林区,松墨天牛成虫的发生期为4月中旬至8月底。诱捕的松墨天牛携带松材线虫的比率为31.1%,其中雌虫携带松材线虫的比率达到34.8%。

Effect of different attractants on Monochamus alternatus Hope from Wanding forest in Yunnan province was studied with the field experiment. The results showed that each trap could catch 15 adults using attractant Ⅰ, but each trap could catch 2 adults using attractant Ⅱ and attractant Ⅲ, respectively. Number of trapped adults in the west of forest area was significantly more than that in the other directions. It was also confirmed that the adults mainly occurred from mid April to late August. About 31.1% of trapped adults carried Bursaphelenchus xylophilus, in which females were accounted for 34.8%.