Forest disease is a kind of natural phenomenon between living things in food chain.
森林“病害”是森林生态系统中生物之间食物链关系的一种自然现象。
According to analysis of the reason, condition and character of forest disease and insect pest in Pingxiang City, the author put forward effective prevention and control countermeasures.
针对萍乡森林病虫害发生情况、特点及成因分析，提出有效控制防治对策。
Forest stands of red oaks, with their tannin-rich foliage, may even provide caterpillars with safe havens from disease.
红栎树的林分枝的叶子富含鞣酸，甚至可以为毛毛虫提供远离疾病的安全避难所。
The present work establishes the identification tools to move forward and ask how forest fragmentation affects such disease dynamics.
目前的研究建立了识别工具，以进一步研究森林分化对这种疾病动态的影响。
Long called the "Forest City," Portland maintains at least 20, 000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch elm disease.
长期以来被称为“森林城市”，波特兰今天至少保留着20,000棵树，其中包括约100棵榆树，它们在20世纪60年代所爆发的荷兰榆树病中幸存了下来。
Long called the forest City,? Portland maintains at least 20, 000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch elm disease.
波特兰一直有森林城市的美称，今天它拥有的树木至少2万棵，其中包括约100榆树，它们历经20世纪60年代爆发的荷兰榆树病而幸存下来。
Conclusion Lyme disease is one of the diseases which are hazard to health of people living forest area in Jiangsu.
结论莱姆病是危害江苏林区人群健康的疾病之一。
The deer in the forest are all dying off from disease.
森林里的鹿一头接一头地病死了。
Poplar crinkle disease is a new discovered in artificial poplar forest in Heilongjiang province.
杨树皱叶病是在黑龙江省杨树人工林中新发现的病害。
Forest insect pest and disease is one of the main factors influencing forest health.
森林病虫害是影响森林健康的主要因素之一。
Forest park, for, native son, prevention disease, can rise obvious function.
森林公园，对于，当地人，预防疾病，可以起到明显作用。
It also shows low unit stock volume, unreasonable forest age structure, low forestland use ratio and severe pest, disease and rat disaster.
该流域森林资源有限且分布不均；单位蓄积量低，林龄结构不合理；林地利用率不高，病虫鼠害严重。
The masson pines of the forest area are oversized, easy to have the big area plant disease.
马尾松成片林面积过大，易产生大面积的病害。
Conclusion: To prove that Shawan forest area of Xinjiang is one of the epidemic areas of Lyme disease in China.
结论：新疆沙湾林区人群中存在较高的莱姆病感染，可能是莱姆病的流行区之一。
Forest encephalitis is a viral infectious disease, mainly causing occupational hazard to forest workers.
森林脑炎是林区的一种病毒性传染病，也是林业工人的主要职业危害。
Poplar is the important tree species for shelterbelt and timber forest in our country. However, rapidly and fiercely-spreading by disease and pest has led to tremendous economic losses.
杨树是我国重要的防护林和用材林树种，但病虫害的迅猛发展造成了巨大损失。
Poplar is the important tree species for shelterbelt and timber forest in our country. However, rapidly and fiercely-spreading by disease and pest has led to tremendous economic losses.
杨树是我国重要的防护林和用材林树种，但病虫害的迅猛发展造成了巨大损失。
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