建立了病害流行时间动态函数。
At the same time, temporal dynamic function of apple scab was developed.
夏季高温高湿是导致病害流行的主要因素之一，垂直刈剪和合理施用氮肥可降低该病的危害。
High relative humidity is one of main factors causing disease epidemic. Vertical mowing and rational application of nitrogen fertilizer can reduce the disease damage.
本文简要地介绍了世界主要植蔗国通过甘蔗抗病育种，成功地控制了蔗区重要病害流行的情况。
It covers in this essay a brief introduction about how to have successfully controlled the epidemics of major sugarcane disease through breeding in the major sugarcane planting countries.
跨界动物病害是传染性很大或可能跨越国家边界迅速严重蔓延的动物流行病。
Transboundary animal diseases are epizootic diseases that are highly contagious or transmissible with the potential for very serious and rapid spread, irrespective of national borders.
随着今年降雨量不断增多，黑荚病，一种由真菌引起病使可可减产的植物病害传播流行开来，上诉农户的行为就产生了较大的影响。
That matters because higher rainfall in recent years has increased the prevalence of “black pod”, a fungal disease which lowers cocoa yields.
蔬菜设施生产过程中的连作方式致使作物根区土壤微生物区系失衡，引起土传病害的流行。
The heavy soil root disease was caused by the unbalanced soil microflora after continuous vegetable cropping in green house.
毛竹枯梢病在林间流行的时间动态属于积年流行病害，遵循罗辑斯蒂模型。
The temporal dynamic of epidemic of the top blight of P. heteroc-ycla is of the polyetic epidemic disease, which follows a Logistic model.
这对于提高植原体的分类鉴定、致病机制、流行预测及病害防治等研究水平具有重要的作用和意义。
This will be of great importance in increasing the level of classification and determination of phytoplasmas, epidemiological forecasting and the control of relevant diseases.
对于枣疯病的防治，关键是能够根据当地病害发生的生态条件，从中找出致病的主导因素，并有针对性地采取相应的防病措施，完全可以控制枣疯病害的发生和流行。
The crux of prevention and control of jujube witches broom was to find out the leading factor of causing the disease in the light of local ecological environment and to take appropriate measures.
玉米灰斑病是凤庆县近年突然暴发流行的一种玉米叶部病害。
Gray leaf spot of maize occurred suddenly in Fengqing County, Yunnan Province in the recent years.
尽管我们尽了一切努力来控制这个病害的流行，可是这种大流行似乎隔一定年限就会发生一次。
Although we do our best to control the disease pandemic, it seem pandemic interval several years.
着重分析了各病害生态区白叶枯病发生流行特点及原因，提出了相应的防治对策。
In this paper, the characteristics and possible causes of prevalence of rice blight in different geographical regions were discussed with respect to countermeasures of control.
本文综述了我国鲍养殖病害的现状，流行病学、病原学、诊断和防治等方面的最新研究进展。
This paper deals with the recent progress in the study of the disease occurred in cultured abalones about epidemiology, pathogeny, diagnose, prevention and cure in China.
对其生物学特性的研究为研究该病害的发生流行规律提供了理论依据。
The study of biological characteristic offered the academic basis to investigate the disciplinarian of the pathogenic prevalence.
对其生物学特性的研究为研究该病害的发生流行规律提供了理论依据。
The study of biological characteristic offered the academic basis to investigate the disciplinarian of the pathogenic prevalence.
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