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黄瓜生长发育过程中霜霉病是最大的威胁,尤其是在温室环境条件下,它发展的非常快,对黄瓜的生长发育、产量和质量造成了很大的影响。
Downy mildew is the most serious threat to the growth and development of cucumber. Under the environmental conditions of greenhouse, it develops very fast and has a great impact on the growth, yield and quality of cucumber.