3种引诱剂对松褐天牛成虫引诱效果比较

Comparison of trapping efficacy of three attractants to Monochamus alternatus adults

为了更好地对松褐天牛成虫进行监测和诱杀,在遂昌地区的马尾松林及贮木场内利用3种不同引诱剂对松褐天牛进行诱捕对比试验。结果表明,3种引诱剂对松褐天牛都有较好的引诱效果,但差异显著。其中,APF-Ⅰ型引诱剂的效果最好,F1型引诱剂次之,ST-2型最弱。试验期共诱捕到松褐天牛成虫4 979头,其中雌成虫4 134头,雄成虫845头,雌雄比为1∶0.204。所诱捕到的雌虫数量是雄虫的4.89倍,差异显著(P=0.045,t=-4.551)。引诱剂捕获松褐天牛的高峰期为6月中旬至8月中旬,6月至8月份降雨量及气温对松褐天牛成虫诱捕规律产生较大影响。本研究为遂昌地区松褐天牛成虫的防治提供了科学依据。

In order to monitor and control Monochamus alternatus adults efficiently, three attractants were used to trap M.alternatus adults in Pinus forests and timber yard in Suichang. The results showed that the trapping efficiencies of the three attractants were different significantly, and ranged as APF-I>F1>ST-2. Total of 4 979 M.alternatus adults were captured(females: 4 134, males: 845, ♀∶♂=1∶0.204), and the number of females was 4.89 times than that of males. The trapping peak appeared from Mid-June to Mid-August, and the number of adults captured was significantly influenced by rainfall and temperature. The results could provide a certain biological basis for the effective control against M.alternatus.