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马尾松萎蔫死亡主要是由松褐天牛携带的松材线虫侵害引致。由于马尾松不是松材线虫的感病松属,对松材线虫的繁殖存在一定的抗性。松材线虫疫区马尾松所以大量快速死亡,不但与松材线虫及其主要传播媒介松褐天牛幼虫为害有关,而且与松材线虫侵入后,使大量已受松突圆蚧为害生势衰退的马尾松更趋衰弱,从而引致除松褐天牛外,还有赤梗天牛、松白星象等已查明的8种专门为害生势衰弱马尾松的害虫迅速繁殖为害有关。不及时砍伐快速死亡马尾松灭虫的疫区尤其严重。病虫综合为害是疫区马尾松大量萎蔫死亡的基本因素。
The death of Pinus massoniana is mainly caused by the pine wood nematode carried by Monochamus alternatus. Because Pinus massoniana is not a susceptible Pinus pine wood, there is some resistance to the growth of pine wood nematode. Masson pine nematodes epidemic masson pine so a large number of rapid death, not only with pine wood nematode and its main vector media, the brown day larvae damage, but also with pine wood nematode invasion, Of Pinus massoniana weakened, resulting in addition to Monochamus alternatus, as well as Red Terrier, white astrology and other eight identified specifically for the pest infestations Pinus massoniana rapid reproduction damage related. The epidemic of massively decontaminated masson pine is not particularly devastating. Integrated pests and diseases are massively wilt masson pine deaths in the affected area.