不同的春小麦品种受麦秆蝇为害程度存在着明显的差别。
The degree of infestation is obviously different among different spring wheat varieties.
该病发生早迟和为害程度与极端低温出现的早迟和低温程度关系密切。
The occurrence time and severity of the disease was closely relative to the date and degree of the yearly minimum temperature.
水稻的产量损失率不仅与蚁螟的为害时间、为害程度有关，而且还与管理措施和气候条件有关。
The yield loss rate of rice plant concerns not only damage time and damage degree, but also management strategies and weather.
结果表明，稻穗瘟病的为害程度在不同品种上存在一定差异，与侵染发病时间和发病部位关系密切。
The results show that there was some difference in damage caused by rice neck blast among cultivars. The difference has close relation to the time of infection and access and the diseased parts.
本文根据分类系统要求，对每种蚧虫按其科、种分别列出中名、学名、采地、寄主、为害程度、生活史、习性等。
Chinese name, latin name collection site, host, damage degree, life circle, habit, etc of each coccoidea was listed according to species and families.
草地螟在长沙地区草坪越冬基数很小，在长沙地区为害的多为外地迁入的虫源，为害程度主要取决于异地越冬代成虫迁入量的多少。
The over-winter cardinal number of meadow moth was very small in lawn in Changsha area, and they were a number of meadow moths coming from other places, not from the Changsha area.
在检索文献资料和调查的基础上，对浙江省花木蚧壳虫分布、种类和为害程度进行了补充整理，收录浙江省花木蚧虫12科97属258种。
Based on literatures and documents, 258 species to 97 genera to 12 families of scale insects damaging to flowers and plants in Zhejiang province(Homoptera:Coccidea)were recorded.
在一定程度上来说，他们之所以反对提税是因为害怕此举导致日本经济重回萧条。
Partly this is out of fear it would push Japan back into recession.
今天，知识分子缄口不言在很大程度上并不是因为害怕。
Today it is not for the most part fear that muzzles the intellectuals.
松树和云杉球果有时会遭到松鼠为害引起轻度或中等程度的损害。
Light to moderate losses of pine and spruce cones are occasionally caused by squirrels.
结果表明，油桐尺蠖的为害对油桐的生长发育、产量和桐油的品质，均有不同程度的影响。
The results indicated that the damage of the insect had an effect on the development and yield of tung tree and the quality of tung oil in varying degrees.
由此建立的量化指标体系包括了叶片褪绿程度的分级标准和叶片为害度的计算两个部分。
The resistance index system was composed of scoring scale of chlorosis on a leaf of maize and the ACL ca.
由此建立的量化指标体系包括了叶片褪绿程度的分级标准和叶片为害度的计算两个部分。
The resistance index system was composed of scoring scale of chlorosis on a leaf of maize and the ACL ca.
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