无论露地和保护地栽培黄瓜,常有死秧病发生,重者发病达45％以上,造成严重减产。过去用棚内熏蒸消毒、或隔年换土,但死秧仍难避免。经用甲基托布津、代森铵喷灌效果也不理想。近年来经多次试验,筛选出应用链霉素(人、兽均可用),每40万单位兑水0.25公斤,于发病初期在病株周围灌根,每株用量40～50毫 Regardless of the open field and the protective cultivation of cucumbers, often dead seedling disease occurred, severe cases of more than 45% of the incidence, resulting in serious cuts. In the past fumigation disinfection shed, or change the soil every year, but still difficult to avoid dead seedlings. After using thiophanate methyl, ammonium spray irrigation effect is not satisfactory. In recent years, after many trials, screening out the application of streptomycin (human and animal are available), watered 0.25 kg per 400,000 units, early in the pathogenesis of irrigation in the vicinity of the diseased plants, the amount of each plant 40 to 50 milliliters