森林昆虫生态学是森林害虫综合管理的理论基础。
Forest insect ecology is the theoretical basis of integrated management of forest pests.
回顾、讨论了昆虫行为调节及其在森林害虫管理中的应用。
The methods to manipulate insect behavior by using stimuli, especially chemical stimuli for the management of forest pests were discussed.
文章系统论述了国内外近年来在森林害虫监测和治理方面的研究进展。
The recent years' advance in both monitoring and management for forest pest home and abroad are discussed.
化学农药防治森林害虫随着人们环保意识不断增强在应用中越来越慎重。
It becomes more and more carefully to control forest insects by pesticide because the people's senses of environmental protection have been constantly strengthened.
在森林害虫科学管理决策专家系统中，害虫危害的经济阈值是最重要的判别依据。
The economic thresholds of insect pests are the most important distinguish basis in the scientific management system of forest pests.
本文论述了森林害虫防治指标的划分原则，4种主要指标类型的区别及适用范围，及确定防治指标的三种基本方法。
The dividing principle of pest control index, the difference and suitable ranges of 4 important index types, and 3 basic methods in determining control index are discussed.
根据子午岭林区林虫区系组成和区划特征，结合主要树种害虫危害特点，提出了预防和除治子午岭林区森林害虫的3项措施。
Based on the fauna composition and division characteristics of forest pest insects in Ziwu Mountains and damage of pests on important tree species, 3 control countermeasures were provided.
外来害虫可以对森林生态系统产生短期和长期的影响。
Exotic insect pests can produce both short-and long-term effects on forest ecosystems.
相反，一个复杂的顶极群落，如温带森林，将承受天气和害虫所带来的大规模破坏。
In contrast, a complex climax community, such as a temperate forest, will tolerate considerable damage from weather to pests.
森林需要管理，以尽量减少不良干扰的风险和影响，包括野火、空气污染、风暴倒林、入侵品种、害虫、病害和昆虫。
Forests need to be managed so that risks and impacts of unwanted disturbances are minimized, including wildfires, airborne pollution, storm felling, invasive species, pests, diseases and insects.
美洲的森林被外来害虫毁坏---满是死树的森林容易招致惨重的大火。
American forests are being devastated by foreign pests—and forests full of dead trees are prone to catastrophic fires. A fire in Washington State, above.
害虫综合防治在森林保护学中已日益引起重视和接受，但对竹害虫以工程形式进行综合防治在我国尚属首次。
Integrated Pest Control has been understanded and accepted in the science of forestry protection and it is the first time in our country that using for bamboo.
而且，死树不是仅仅为害虫提供栖息地，鸟类和其他昆虫也会居于与此，这些鸟类和昆虫对于森林的长期健康是有利的。
And of course dead trees do not provide habitats only for harmful insects. They are also used by birds and other insects that are important contributors to the long-term health of forests.
松叶蜂是云南省森林的重要害虫。
The conifer sawflies are economically important defoliators in the forest in Yunnan Province.
小蠹是最重要的森林蛀干害虫之一，由于危害极其隐蔽，被认为是通过国际贸易传播最为普遍的一类昆虫。
Scolytidae is one of the most important insect populations of the forestry and spreaded abroad by international trade.
例如，在NB的森林里，过去的25年里，多种杀虫剂被喷洒以控制云杉蚜虫，一种经济上严重的病害虫。
In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm , an economically significant pest.
例如，在NB的森林里，过去的25年里，多种杀虫剂被喷洒以控制云杉蚜虫，一种经济上严重的病害虫。
In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm , an economically significant pest.
应用推荐