What is the law of cucumber onset in solar greenhouse?

The high-humidity conditions in the solar greenhouse are the main factors for the occurrence and spread of various diseases of cucumber, but when the different temperature conditions are combined with high humidity, the dominant diseases of cucumber will be different:

(1) The leading diseases occurring in the low temperature stage (from mid-December to early February) are bacterial diseases, including bacterial angular plaque, bacterial spot disease, and bacterial edge blight.

(2) In the middle temperature stage (mid-October to mid-December, the second year of the leap year to the beginning of April), the leading disease is the downy mildew of cucumber, and in some greenhouses, it will also cause cucumber blight, covering the ground. The greenhouse of the mulch will also cause cucumber powdery mildew.

(3) The leading disease in the high temperature stage is anthrax.

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