【摘要】 采用人工接种、林间调查等方法 ,研究纵坑切梢小蠹蛀梢危害对云南松生长和抗性的影响。结果表明 ,受害梢率在 2 0 .0 %以下时 ,蛀梢危害对云南松的生长和抗性无明显影响。但当受害梢率高于 2 0 .1%后 ,云南松的高、径生长随受害梢率的增加而降低 ,蛀干成功率则随受害梢率的增加而增高。更多还原

【Abstract】 The effect of shoot feeding by Tomicus piniperda on the growth and resistance of Yunnan pine was assessed by means of field investigation and artificial introducing adult insects to the crown. The results demonstrated that the growth and resistance of Yunnan pine were not affected by the attacks of T. piniperda when the attacked shoot ratio was lower than 20.0 percent. However, after the attacked shoot ratio was higher than 20.1 percent, the height growth and radial increment reduced, and the successful stem attacks increased following the increment of shoot attacks.更多还原