利用布撒器防治松果梢斑螟试验简报

The experiment bulletin of controlling Diorctria pryeri using dispenser

以松果梢斑螟为对象,利用布撒器抛撒Bt药包和施放1.2%苦参烟碱烟剂进行生产性防治试验,结果表明:布撒器抛撒Bt药包,红松球果的受害率为5%;1.2%苦参烟碱烟剂,受害率为34%,布撒器的防治效果远远好于1.2%苦参烟碱烟剂。在林龄大、树木高的林分条件下,建议采用布撒器抛撒Bt药包的方法防治松果梢斑螟。

The productbility control experiment was carried by throwing Bt and 1.2%matrine and nicotine smoking agent to Diorctria pryeri regonot.The result showed that the damage rate of Pinus koraiensis cone were 5%and 34%by throwing Bt and 1.2%matrine and nicotine smoking agent , respectively.The control effect of dispenser was better than the 1.2%matrine and nicotine smoking agent .It had better use Bt to control the Diorctria pryeri in the forest stand condition of large age of stand and tall trees .