利用松褐天牛早期监测松材线虫病技术研究

Studies on Techniques of Monitoring Bursaphelenchus xylophilus in Early Stage by Monochamus alternatus Hope

在室内对因松材线虫病死亡马尾松树干羽化出的松褐天牛测定结果表明 ,86%的天牛携带松材线虫 ,平均 1头天牛携带 3 590条。林间引诱松褐天牛 ,在没有松材线虫病的健康林地 ,分离不到松材线虫 ,而松材线虫病发生区引诱到的天牛 65%携带松材线虫 ,携带量在 1 0 1～ 50 0 0条之间。在 5月下旬～ 6月中旬 ,应用黑光灯 ,新鲜马尾松木段 ,引诱松褐天牛 1 0头以上 ,采用松材线虫常规分离方法 。

Results of indoor determination on Monochamus alternatus Hope eclosing on the trunk of Pinus massoniana died of Bursaphelenchus xylophilus indicated that 86% of longhorn beetles carried Bursaphelenchus xylophilus and a longhorn beetle carried 3590 on average Bursaphelenchus xylophilus can not be separated from the Monochamus alternaius Hope lured in healthy forest without Bursaphelenchus xylophilus, but 65% of longhorn beetles lured in occurrence area of Bursaphelenchus xylophilus carried 101～5 000 From the last ten-day of May to the middle ten-day of June ,on the fresh trunk of Pinus massoniana, the number of Monochamus alternatus Hope lured with black light lamp was more than 10 The occurrence of Bursaphelenchus xylophilus can be monitored in early stage by normal separating method