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自从松萎蔫病于1988年首次报道以来,该病已经扩散到韩国大部分地区并引起未能预见的危害。从2000年该病危害急剧增加,到2006年危害面积已达7871hm2。2000—2008年伐除的病树已达1851225株,年经济损失达1000万美元。2006年后危害面积下降,2008年下降到6015hm2。但至2008年该病已经扩散至韩国54个地区、县和11省。调查发现松材线虫可以被云杉花墨天牛(Monochamus saltuarius)所携带。防治的策略为:(1)连续地监测;(2)病株的早期检测;(3)伐除病株;(4)焚烧和熏蒸伐除的病木。对人文和旅游景点及成熟林可以采取注射法防治,也可采取飞防的方法防治天牛。韩国已经通过了法律,禁止病木的运输。在首次发现该病后连续3a未发生重复感染的地区,建立无病区和优选系统。
Since the first report of wilt disease in 1988, the disease has spread to most parts of South Korea and caused unforeseen dangers. From 2000, the disease’s risk increased sharply. By 2006, the harmed area reached 7871hm2. There were 1,851,225 strains of harmed mosquitoes in 2000-2008, with an annual economic loss of 10 million U.S. dollars. Hazardous area dropped after 2006 and dropped to 6015hm2 in 2008. However, by 2008 the disease had spread to 54 districts, counties and 11 provinces in South Korea. The survey found that pine wood nematodes could be carried by the spruce Monochamus saltuarius. Strategies for prevention and treatment are: (1) continuous monitoring; (2) early detection of diseased plants; (3) removal of diseased plants; (4) incineration and fumigation of diseased wood. Humane and tourist attractions and mature forest can take injection prevention and control, but also can take the method of flying anti-day cattle. South Korea has passed laws prohibiting sick trees from being transported. In the area where repeat infection was not observed for 3 consecutive years after the disease was first discovered, a disease-free zone and a preferred system were established.