为防止葡萄园里的霜霉病扩散，农技人员建议在雨季前合理使用杀真菌剂。
To prevent downy mildew from spreading in the vineyard, agricultural technicians recommend using fungicide properly before the rainy season.
To prevent downy mildew from spreading in the vineyard, agricultural technicians recommend using fungicide properly before the rainy season.