应用聚集信息素监测与防治纵坑切梢小蠹效果初报

为了防控纵坑切梢小蠹对红松的危害,在抚松县林业局红松母树林利用人工合成信息化学物质———聚集信息素对纵坑切梢小蠹进行监测与防治,结果表明:利用聚集信息素诱捕器对纵坑切梢小蠹的诱捕数量比人工调查查获数量提高50倍以上,监测准确率可达到100%,持续防治4 a后的林间诱集量下降率为81.6%。纵坑切梢小蠹在抚松县的扬飞期从5月中旬开始,高峰期出现在6月中旬,至7月中旬扬飞量明显减少,至9月上旬扬飞期基本结束。

Application of semiochemicals on monitoring and control of Tomicus piniperda

To reduce the damage of Korean pine attacked by Tomicus piniperda,a research on monitoring and controlling the beetle by semiochemicals were investigated in the Fusong Forest Bureau of Jilin,China.The results showed that number of beetle trapped by semiochemicals was 50 times above than that caught by labors,and the accuracy rate of monitoring reached to 100 percent.After four years’ mass trapping,the beetle number trappaed decreased by 81.6 percent.Meanwhile,the flight period was monitored: the overwintering beetles started flight in middle May and the flight peak came in middle June.The catch declined sharply in middle July and the flight ended in early September.