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目前,我国防治松材线虫病Bursaphelenchus xylophilus(steiner and Bu-brer 1934)Nickle 1970.的主要方法是清理病死树,然后采用溴甲烷或硫酰氟等薰蒸剂薰杀媒介昆虫—松褐天牛Monochamus alternatus Hope。最近,有关生产单位提出:薰蒸处理对松材线虫的致死效果如何?如果薰蒸木中仍有松材线虫存活,则存在着松褐天牛再度侵染传播的可能性,尽管这种可能性很小,但从检疫的角度考虑,依然不能忽略。本次试验结果表明:溴甲烷的用量为46.5克/米~3,薰蒸时间为90小时,日平均气温在11.8～13.7℃之间,松材线虫与松褐天牛一样死亡率均达100％。因此,可以排除薰蒸木为松褐天牛再侵染传播的可能性。
At present, the main method for controlling Bursaphelenchus xylophilus (Steiner and Bu-brer 1934) in China is Bursaphelenchus xylophilus (Steiner and Bu-brer 1934). Nickle 1970. The main method is to clean the diseased dead tree and then kill the media insects Monochamus majus, using the fumigant such as methyl bromide or sulfuryl fluoride alternatus Hope. Recently, the relevant production unit proposed: How effective are the lethal effects of fumigation treatment on pine wood nematodes? If there is still the growth of pine wood nematode in fumigated wood, there is a possibility that the brown crab may re-spread and transmit, although this possibility Sex is small, but from the quarantine point of view, still can not be ignored. The test results showed that: the amount of methyl bromide 46.5 g / m ~ 3, fumigation time 90 hours, the average daily temperature of 11.8 ~ 13.7 ℃, pine wood nematode and Monochamus alternatus same mortality rate reached 100% . Therefore, it is possible to rule out the possibility that fumigated wood replanted and transmitted by Monochamus alternatus.