共查询到20条相似文献，搜索用时 265 毫秒
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林业病虫害对我们的危害程度越来越大,防范危险性林业病虫害刻不容缓。本文对林业病虫害的防治工作现状、林业病虫害的特点、林业病虫害频发的原因、林业病虫害的防治的具体措施进行了分析,希望重视林业病虫害防治工作的重要性。 相似文献
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贵州足球场草坪主要病虫害发生及防治 总被引：4，自引：0，他引：4
1998～ 1999年对贵州省足球场草坪病虫害进行了调查研究 ,其主要病虫害有 :锈病、禾草云斑病、褐斑病、禾生腐霉病、粘虫 ,麦二叉蚜等。并阐述了病虫害发生规律及防治技术 ,旨在为足球场草坪病虫害的防治提供参考 相似文献
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分析了当前桑树病虫害防治存在的问题,系统地总结了桑树病虫害无公害防治技术,并从农业防治、物理防治、生物防治、化学防治四个方面探讨了秋冬季桑树病虫害无公害防治技术措施。 相似文献
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海安县桑树病虫害发生规律及防治 总被引：1，自引：0，他引：1
《江苏蚕业》2017,(1):15-18
介绍桑树病虫害发生特点、发生主要原因及防治措施,总结了桑树病虫害综合防治的指导思想及主要存在问题,并据此提出海安县全年桑树病虫害综合防治的措施、防治时间和药品总体思路,为桑树病虫害的防治提供参考依据。 相似文献
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根据浙江省６个重点蚕区县市１８年桑树主要病虫害发生情况及桑叶损失情况,提出了暴发性桑树病虫害损失的评价方法;明确了浙江重点蚕区已经全面或局部暴发过的病虫种类,和暴发性病虫害发生具有明显种群优势及间隙性、种类多样性的特点;分析了影响桑树病虫害暴发的主要因素。 相似文献
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从桑园病虫害的防治要求出发,阐述了农业防治在桑园病虫害防控中的作用,分析了目前农业防治桑园病虫害中存在的问题,对如何加强农业防治,切实推进桑园病虫害综合治理提出了自己的观点。 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
When early people made their appearance, zoonotic infectious diseases were already waiting, but epidemic diseases did not appear in human history until people began to live in large numbers under conditions of close contact, mainly during the last 10,000 years. Disease has decimated urban populations, conquered armies, and disrupted society. The focus here is on (1) the plague of Athens and the Black Death; (2) smallpox, influenza, and rabies; (3) avian influenza prion diseases, and foot & mouth disease; and (4) emerging and re-emerging diseases. All have veterinary public health associations. In Athens, Greece, in 430 BC, when the Spartans ravaged the countryside, hordes crowded into Athens so that orderly movements, space in which to live, and adequate supplies of food became impossible. Crowding of any population fosters disease transmission; chaos and disorder enhance it all the more. Out of northern Egypt came a terrible plague from across the Mediterranean Sea. The identity of the plague of Athens remains unsure, but the well-considered conclusion is Rift Valley Fever, a mosquito borne, viral zoonosis. The Black Death, also called the Plague, raged in Asia for centuries. In 1347, the Black Death was brought by a ship out of Asia to Sicily. The scenes of devastation were repeated throughout Europe, with 90% or more of the people dying in city after city. Influenza, too, has been a cause of periodic human epidemics, but the great pandemic of influenza occurred in the last months of World War I. In the years of highest occurrence, more than half the world's population became clinically infected. If veterinary public health had been born earlier, it could have led to elucidating the epidemiology of influenza and the plagues of Athens, Europe, and Asia. In turn, smallpox had also caused continual tragedy. In 1796, Edward Jenner began to harvest pustules of cowpox from children or infected cows and inject them into susceptible children. In 1980, the World Health Organization declared that smallpox had been eliminated from the world. Rabies, though, still strikes terror. A number of animal diseases, broadly termed emerging and re-emerging diseases, need surveillance because they have the potential to impact human health. From late in 2003 to 2007, the highly pathogenic H5N1 influenza virus in poultry infected at least 121 people and caused 62 deaths in four countries. The prion diseases, too, all have very high numbers in concentrated contacts. To control these diseases, veterinary public health is essential, with diagnosis, epidemiological surveillance, clinical manifestations, and prevention as primary measures. 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
On 26th of july 2007 a new case of bluetongue was notified in the Netherlands and on 2nd of august 2007 foot-and-mouth disease was diagnosed in Surrey, England, which raised the threat of having both infections simultaniously in one area. Bluetongue and foot-and-mouth disease have a different pathogenesis, but symptoms may resemble each other at a later stage of infection. The pathogenesis and possible clinical symptoms of both infections are discussed and illustrated with pictures. 相似文献
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在动物的异常行为中以刻板行为最为常见,而咽气癖又是马最常见的口部刻板行为之一。作者就咽气癖在生理方面和心智方面对马体产生的影响、行为基础、诱因的研究进展及常见的防治措施进行综述。 相似文献
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