1981年,南阳市采用飞播造林的手段营造了大面积油松、马尾松林,生态环境明显改善,但近年来,发现枝干枯死现象十分严重。2001年10月,我们在内乡、西峡、淅川等县的飞播林区内调查时发现,在直径为1-2cm的枯死枝干上,剥开皮层后,有大量成虫在坑道内潜居越冬,经有关专家鉴定为松纵坑切梢小蠹,现已成为当地中幼龄油松、马尾松林的主要灾害。 In 1981, Nanyang City, by means of aerial seeding afforestation to create a large area of ​​Pinus tabulaeformis, Pinus massoniana forest, the ecological environment improved significantly, but in recent years, found that the phenomenon of dead branches is very serious. In October 2001, we surveyed airborne forest areas in Neixiang, Xixia, Xichuan and other counties and found that a large number of adults survived in the tunnel after peel the cortex on the dead branches 1-2 cm in diameter , Identified by the relevant experts as pine pits cut moths, has now become the local young and middle-aged Pinus massoniana pine disaster.