Downy mildew is one of the most serious grape diseases, the usual treatment method presently is the application of chemical fungicide, but excessive spray brings many severe problems.
霜霉病是危害葡萄最严重的病害之一，目前采用的主要防治手段是喷施化学农药，但其用量过多也带来许多严重问题。
Downy mildew is one of the most serious grape diseases, the usual treatment method presently is the application of chemical fungicide, but excessive spray brings many severe problems.
霜霉病是危害葡萄最严重的病害之一，目前采用的主要防治手段是喷施化学农药，但其用量过多也带来许多严重问题。
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