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通过对 15个标准地的详查和 49株样木的解析 ,对南岳景区松墨天牛 Monochamusalternatus Hope的发生规律进行了研究 .结果表明 :松墨天牛的发生与萧氏松茎象 Hylobitelus xiaoi的危害成正相关 ,且萧氏松茎象危害在先 ;同一山头阴坡受害重于阳坡 ;生长势越衰弱、林地卫生越差、风大处的林分 ,松墨天牛发生越重 ,且纯林重于混交林 ;松墨天牛可危害景区内华山松、黑松、马尾松和雪松 ,且对直径 2 cm左右的小枝也蛀食危害 ;松墨天牛在华山松、黑松上的垂直分布差异不很明显 .因此 ,要控制松墨天牛的危害 ,首先必须控制萧氏松茎象的危害 ,同时还应积极采取各种有效的控制措施 .
The investigation of the occurrence of Monochamusalternatus Hope on Montanehamus Hope in Nanyue Scenic Area was conducted by the detailed investigation of 15 standard plots and the analysis of 49 sample trees.The results showed that the occurrence of Monochamousternatus Hope was closely related to Hylobitelus xiaoi Of the damage is positively correlated, and Shaoxing pine stem like the first hazard; the same hill shady slope heavier than the sunny slope; the more weakened growth potential, the worse the woodland health, the wind forest, Monochamus alternatus occurs heavier, And the pure forest is heavier than the mixed forest; Monochamus alternatus can endanger Pinus armandii, Pinus thunbergii, Pinus massoniana and Cedar, and also harm the branchlets about 2 cm in diameter. Monochamus alternatus Therefore, to control the harm of Monochamus alternatus, we must first control the harm of Hyoscyamus sylvestris, and at the same time we should actively take various effective control measures.