论文部分内容阅读
松材线虫 Bersaphelenchus xylophilu-s,在日本对本地松已造成严重危害。最近美国将线虫鉴定为一种病原体。病理学家们予测,此线虫也许会威协这里的森林。有不少的证据表明,线虫除了能导致这个国家的国外松死亡之外。如欧洲赤松(Pinus sylestris)和黑松(P、thunbergii),还可引起从未受到线虫侵染的当地松树死亡。传播线虫的媒介昆虫由于在其产卵期间可将线虫传播到伐倒木和濒死立木上,所以在并非主要由线虫致死的植株上也能出现线虫。在美国,昆虫在产卵期间传播线虫能解释线虫在植株遭到其它因子危害后才进入寄主上。
Pine wood nematode Bersaphelenchus xylophilu-s, has caused serious damage to Pinus thunbergii in Japan. The United States recently identified nematodes as a pathogen. Pathologists predict that the nematode might threaten the forest here. There is a lot of evidence that the nematodes can lead to the loose of the country in addition to loose. Such as Pinus sylestris and P, thunbergii, can also cause the death of local pine trees that have never been infected by nematodes. Media insects that spread nematodes Nematodes can also occur on plants that are not primarily lethal by nematodes due to their ability to transmit nematodes to fallen logs and moribund stands during their spawning period. In the United States, the transmission of nematodes during spawning can explain that the nematode enters the host only after the plant has been compromised by other factors.