• The quota and function of 3S technology in the forest pests are analyzed.

    对“3S”技术森林病虫害预警中的应用现状作用进行了分析。

    youdao

  • 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。

    youdao

  • Former literature about forest pests usually mixedO. olivacea with O. achatina.

    国内有关林业害虫文献往往将其混淆。

    youdao

  • 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关系。

    youdao

  • Forest insect ecology is the theoretical basis of integrated management of forest pests.

    森林昆虫生态学森林害虫综合管理理论基础

    youdao

  • The space remote sensing technology is applied to the investigate division of forest pests in the study.

    航天遥感技术运用森林病虫害调查区划中。

    youdao

  • The economic thresholds of insect pests are the most important distinguish basis in the scientific management system of forest pests.

    森林害虫科学管理决策专家系统,害虫危害的经济阈值重要判别依据

    youdao

  • The methods to manipulate insect behavior by using stimuli, especially chemical stimuli for the management of forest pests were discussed.

    回顾、讨论昆虫行为调节及其森林害虫管理中的应用

    youdao

  • About 1500 species of parasites and predators of forest pests were recorded in China, in which approximate 200 have been studied in biology.

    中国记述有关虫天敌昆虫约1500,对近200天敌生物学、生态学作了研究

    youdao

  • Dendroctonus is one group of most serious forest pests, all of which are economic species, and could directly cause great losses of forest resources.

    大小蠹林木害虫中危害严重一个类群,全部种类经济,均可以直接造成林木资源巨大损失

    youdao

  • The mechanism of diflubenzuron and its application in control of forest pests were introduced, so as to provide reference for the utilization of diflubenzuron.

    介绍了灭幼脲作用机理,总结农林业害虫防治上的应用情况,以期灭幼脲的应用提供参考

    youdao

  • Special topography of northern Guizhou were large mountainous areas without large area forest region, this went against developing control work of forest pests.

    黔北地形特殊,以山区为主,没有成片成片大面积林区不利于森林病虫害防治工作开展

    youdao

  • 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特点属于“森林昆虫学”“林木病理学”两门课程的内容全面整合;

    youdao

  • In contrast, a complex climax community, such as a temperate forest, will tolerate considerable damage from weather to pests.

    相反一个复杂顶极群落温带森林承受天气害虫所带来的大规模破坏

    youdao

  • Exotic insect pests can produce both short-and long-term effects on forest ecosystems.

    外来害虫可以森林生态系统产生短期长期影响

    youdao

  • 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平方千米森林消失大部分是因为燃烧虫害

    youdao

  • 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平方千米森林消失大部分是因为燃烧虫害

    youdao

  • 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干旱虫害火灾造成森林退化也令人担忧。

    youdao

  • 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.

    施放烟雾特定条件下防治森林病虫害一种简便行之有效方法

    youdao

  • 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.

    根据子午林区区系组成区划特征,结合主要树种害虫危害特点,提出了预防和除治子午林区森林害虫3项措施。

    youdao

  • 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.

    木质包装材料包装、木托卡板截获的有害生物为多,截获有害生物主要线虫林木害虫为主。

    youdao

  • Longicorn beetles are a group of important pests of forest, ornamental and fruit trees.

    天牛鞘翅目为害林木园林绿化树木果树一类重要钻蛀性害虫

    youdao

  • Scarabaeidae is one kind of the pests which seriously affect the agriculture, forest, and farming in almost all the countries over the world.

    金龟子目前世界上危害最大害虫种类之一,对各国农业林业畜牧业造成很大的影响

    youdao

  • 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,重要农林害虫,部分类群食性种类,是重要的昆虫天敌生物防治潜在资源

    youdao

  • 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主要防治手段――化学防治效果相当低下的。

    youdao

  • Known as "the yankees, fruit trees and trees with cayenne" and forest tree pests, thorn moth division.

    俗称辣子”,果树、行道树林木害虫科。

    youdao

  • Studies, develops and manages forest areas to maintain commercial and recreational USES, conserve flora and fauna, and protect against fire, pests and diseases.

    研究开发管理森林地区用于商业娱乐休闲,保护动植物预防火灾,病虫灾害。

    youdao

  • Studies, develops and manages forest areas to maintain commercial and recreational USES, conserve flora and fauna, and protect against fire, pests and diseases.

    研究开发管理森林地区用于商业娱乐休闲,保护动植物预防火灾,病虫灾害。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定