1.苗床选址黄瓜、南瓜的育苗床及嫁接苗床都应选在前茬未种过果菜类的地块,来减少土壤病菌对幼苗的侵害。 2.播种前种子处理播种前黄瓜种子和南瓜种子用70℃热水烫种1—2分钟或用55℃恒温热水浸种10—15分钟,可杀死种子上所带的病 1. Seedbed site cucumber, pumpkin nursery bed and grafted seedbed should be selected in the previous crop did not plant fruit and vegetable plots, to reduce the soil bacteria on the seedlings. 2. Pre-sowing seed treatment before sowing cucumber seeds and pumpkin seeds with hot water at 70 ℃ hot 1-2 minutes or soaked with 55 ℃ constant temperature hot water for 10-15 minutes to kill the seeds on the disease