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- To improve the forest pest control efficiency and reduce or avoid its externalities the governmental intervention was necessary. 林业有害生物防治管理需要政府的干预。
- It was shown in the paper that the forest pest control had the characteristics of a public goods and economic externalities. 用经济学的理论和方法对林业有害生物防治进行了分析和探讨,指出了林业有害生物防治具有公共物品特性和外部性经济效应。
- In comparison with integrated pest management and chemical control, the authors put forward a new strategy of forest pest control, named ecological control of forest pest (ECFP). 摘要与有害生物综合管理和化学控制比较后,作者提出了森林有害生物控制新策略-森林有害生物生态控制。
- Study on Integrated Forest Pest Control 森林害虫综合治理研究
- forest pest control 果林害虫防治
- Guangzhou DaSiXi Pest Control Corporation Ltd. 广州市大四喜灭鼠除虫有限公司。
- Qin Guo-Fu; Zhao Jun; Tian Shu-Min(General Station of Forest Pest Control; Ministry of Forestry; Shenyang 110034)He Wei; Sheng Rin-Xiang(Beijing Forestry University; Beijing 100083); 国家林业局森林病虫害防治总站;110034;北京林业大学森林保护系;100083;
- It's an approach to pest control that's so crazy. 这是一种控制有害物的方法,这种方法非常的疯狂。
- Describe the physical tools used for mice and pest control. 请描述所有捕鼠、虫害的物理性工具。
- Most viruses used in pest control programs have been sprayed. 大部分用于控制害虫的病毒都是直接喷射到农作物上的。
- At present, many research works focus on forest pest fields in Japan. 摘要该文重点对近2a日本松材线虫病的研究文献进行整理分析。
- Review on Cultivation and Insect Pest Control of Rhododendron L. 杜鹃花培育及常见病虫害防治技术研究进展。
- The Main Disease and Pest Control Countermeasures of Cycas spp. 苏铁主要病虫害及其防治对策。
- Flower beds receive attention from a pest control worker. 防治虫鼠人员在花槽放置鼠药,杜绝鼠患。
- Pest control is one of the major areas of concern in intensive agriculture. 病虫害防治是集约型农业所关心的主要方面之一。
- The species, distribution, damage and control manures of the forest pest rodents in China were described. The major problems in the control at present and its study tendency were discussed. 摘要该文系统地阐述了我国森林有害啮齿动物的种类、分布及危害的研究进展,论述了鼠害的防控措施,分析了当前防治工作中的重点问题和研究热点。
- The results showed that C. deformans was a forest pest greatly devastating in Gansu, and risk management on this disease should be strengthened. 结果表明,畸形金锈菌在甘肃省是接近于高度危险的林业有害生物,应加强风险性管理力度。
- Police called in a pest controller to deal with the swarm. 最后,警方叫来一名害虫处理专家才将这群蜜蜂对付。
- ZHANG Shiyuan, CAI Daorao, LU Gao.2000. Emergence period of Monochamu salternatus and its distribute on regularity on infested pines. Forest Pest and Disease. 张世渊;蔡道尧;陆高等.;2000
- Monochamus alternatus is not only an important pine forest pest,but also one of the most key vector for transmitting Bursaphelenchus xylophilus in China. 松墨天牛不仅是一种重要的森林害虫,还是松材线虫病的主要传播者。