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蔬菜病害主要包括真菌、病毒与细菌病害。缺素症又称生理性病害,是蔬菜作物缺乏某种营养元素所表现出的特异症状。一般来说,二者在外观上差异较大。但有时病害与缺素症在外观表现上会很相似,特别是在发病初期,这样对病害防治带来一定困难。在这种情况下,可从以下三个方面综合考虑进行区分。1.看病症发生发展的过程。蔬菜病害
Vegetable diseases include fungi, viruses and bacterial diseases. Deficiency disease, also known as physiological diseases, is the specific symptoms of lack of certain nutrients in vegetable crops. In general, the two differ greatly in appearance. But sometimes the disease and deficiency in the appearance of performance will be very similar, especially in the early stages of disease, disease prevention and control so bring some difficulties. In this case, the following three aspects can be considered separately. 1. See the development of the disease process. Vegetable disease