Fire can affect the host and life condition of forest pests directly.
火烧直接影响森林昆虫的寄主和生存条件。
The quota and function of 3S technology in the forest pests are analyzed.
对“3S”技术在森林病虫害预警中的应用现状、作用进行了分析。
Chen XX, He JH. 2006. Parasitoids and Predators of Forest Pests in China.
何俊华,陈学新, 2006。中国林木害虫天敌昆虫。
Former literature about forest pests usually mixedO. olivacea with O. achatina.
国内有关林业害虫的文献,往往将其混淆。
The influence of greenhouse effect to agricultural and forest pests was discussed.
本文论述了温室效应与农林害虫的关系。
Six relative counter - measures of the law for forest pests management were given.
有针对性地提出了六条防治法律对策。
Forest insect ecology is the theoretical basis of integrated management of forest pests.
森林昆虫生态学是森林害虫综合管理的理论基础。
The space remote sensing technology is applied to the investigate division of forest pests in the study.
将航天遥感技术运用于森林病虫害调查区划中。
The economic thresholds of insect pests are the most important distinguish basis in the scientific management system of forest pests.
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 methods to manipulate insect behavior by using stimuli, especially chemical stimuli for the management of forest pests were discussed.
回顾、讨论了昆虫行为调节及其在森林害虫管理中的应用。
About 1500 species of parasites and predators of forest pests were recorded in China, in which approximate 200 have been studied in biology.
中国已记述有关林虫天敌昆虫约1500种,对近200种天敌的生物学、生态学作了研究。
Dendroctonus is one group of most serious forest pests, all of which are economic species, and could directly cause great losses of forest resources.
大小蠹是林木害虫中危害最严重的一个类群,全部种类都是经济种,均可以直接造成林木资源的巨大损失。
The mechanism of diflubenzuron and its application in control of forest pests were introduced, so as to provide reference for the utilization of diflubenzuron.
介绍了灭幼脲的作用机理,总结了其农林业害虫防治上的应用情况,以期为灭幼脲的应用提供参考。
Special topography of northern Guizhou were large mountainous areas without large area forest region, this went against developing control work of forest pests.
黔北的地形特殊,以山区为主,没有成片成片的大面积林区,这不利于森林病虫害防治工作的开展。
Based on the course characteristics of Control to Forest Pests, a new course is developed, which combines original courses of Forest Entomology and Forest Pathology.
作者针对“森林有害生物控制”课程的特点,将原属于“森林昆虫学”和“林木病理学”两门课程的内容全面整合;
In contrast, a complex climax community, such as a temperate forest, will tolerate considerable damage from weather to pests.
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。
Exotic insect pests can produce both short-and long-term effects on forest ecosystems.
外来害虫可以对森林生态系统产生短期和长期的影响。
Between 2000 and 2005 it lost 351,000 sq km of forest, mostly to fire and pests.
2000年到2005年之间,351,000平方千米的森林消失,大部分是因为燃烧和虫害。
Between 2000 and 2005 it lost 351, 000 sq km of forest, mostly to fire and pests.
2000年到2005年之间,351,000平方千米的森林消失,大部分是因为燃烧和虫害。
It will also be offset by an increase in forest dieback elsewhere, caused by rising aridity, drought, pests and fires-all symptoms of global warming.
而且其他地区由于全球变暖导致的干旱、虫害和火灾造成的森林退化也令人担忧。
The release of the smoke generator is a handy and effectual measures that are used to control the forest diseases and insect pests under specific conditions.
施放烟雾剂是在特定条件下,防治森林病虫害的一种简便而行之有效的方法。
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.
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。
Exotic pests were found to be mainly carried by wood package materials, wood trays and boards, and nematodes and forest borers were the mainly pest species intercepted from imported SWPM.
木质包装材料中以木包装、木托及卡板中截获的有害生物为多,截获有害生物主要以线虫和林木害虫为主。
Longicorn beetles are a group of important pests of forest, ornamental and fruit trees.
天牛是鞘翅目中为害林木、园林绿化树木和果树的一类重要钻蛀性害虫。
Scarabaeidae is one kind of the pests which seriously affect the agriculture, forest, and farming in almost all the countries over the world.
金龟子是目前世界上危害最大的害虫种类之一,对各国的农业、林业、畜牧业都造成很大的影响。
Most of them are phytophagous insects and important pests in agriculture and forest; others are predatory insects and are insect enemy and potential resources for biocontrol.
大多数螽蟖为植食性种类,是重要的农林害虫,部分类群为捕食性种类,是重要的昆虫天敌和生物防治的潜在资源。
Nowadays forest diseases and insect pests are serious in our country and the pesticide application is inefficient as the main prevention and control means.
目前我国森林病虫害形势严峻,而其主要的防治手段――化学防治效果是相当低下的。
Known as "the yankees, fruit trees and trees with cayenne" and forest tree pests, thorn moth division.
俗称“洋辣子”,果树、行道树和林木害虫,刺蛾科。
Known as "the yankees, fruit trees and trees with cayenne" and forest tree pests, thorn moth division.
俗称“洋辣子”,果树、行道树和林木害虫,刺蛾科。
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