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什么是作物病害?一般人是把病虫害混合起来看的,可是在科学的分工上,病害是与虫害有区别的。我们如果单独说病害,就不包括受六足四翅的虫害在内。习惯上也不包括受猛烈的自然灾害如水淹、雹打、风吹、高等动物的为害在内。此外作物上所发生的一切不正常现象以致作物产量上成品质上受到轻微的或严重的为害就都算作病害。病害主要的是由于别种生物寄生而起,如同真菌类、细菌类、线虫、病毒或高等植物等。也有由于作物营
What is a crop disease? Most people are pest and disease mixed together to see, but in the scientific division of labor, the disease is different from pests. If we say the disease alone, we do not include pests affected by the six-legged four-winged creature. Nor does it traditionally include being victimized by violent natural disasters such as flooding, hail, wind, or higher animals. In addition, any abnormalities that occur in the crops result in minor or serious damage to the quality of the crops and they are counted as diseases. Disease is mainly due to parasites from other species, like fungi, bacteria, nematodes, viruses or higher plants. Also due to crop camp