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- forest pest diseases 森林病虫害
- 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。
- 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。
- 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。
- 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。
- LUO Y Q,LU C K,XU Z C.Control strategies on a new serious forest pest insect-seabuckthorn carpenterworm,Holcocerus hippophaecolus[J].Forsest Pest and Disease,2003,22(5):25-28. [2]骆有庆;路常宽;许志春.;林木新害虫沙棘木蠹蛾的控制策略[J]
- 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。
- 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。
- Prevention and Combat of Forest Pest and Insect 小议森林病虫害的防治
- Study on Integrated Forest Pest Control 森林害虫综合治理研究
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- The study of viruses and viral diseases. 病毒学一种病毒和病毒性疾病的研究
- Application Techniques of Smoke in Forest Pest and Disease Control 烟剂在森林害虫防治中的应用技术
- Many dangerous diseases are carried by insects. 许多危险的疾病是由昆虫传播的。
- It is said that there are wolves in this forest. 据说这片森林里有狼。
- Most diseases could be wiped out. 大多数疾病是可以被消灭的。
- A large part of Africa is made up of thick forest. 非洲的大部分地区都是密林。
- Certain ear diseases can affect one's equilibrium. 某些耳疾会影响人的平衡能力。