哈密瓜白粉病是为害哈密瓜的主要病害,在新疆瓜区普遍发生,以北疆为重,主要发生于哈密瓜生长的中后期,一般减产10％～20％,含糖量降低1～3度,受害严重时哈密瓜失去商品价值。由于长期单一使用粉锈宁,抗性日趋上升,1995年北疆瓜区自粉病严重发生,粉锈宁已难以控制其为害。为此,我们用石硫合剂结晶进行防治试验,取得了好的结果。 Hami melon powdery mildew is the main damage to cantaloupe. It occurs commonly in melon areas in Xinjiang and mainly in northern Xinjiang. It mainly occurs in the middle and late stages of the growth of cantaloupe. Generally, the yield is reduced by 10% to 20% and the sugar content is reduced by 1 to 3 degrees. Cantaloupe lost its value in serious cases. Due to long-term single use of triadimefon, resistance is on the rise in 1995 in northern guarut serious occurrence of powdery mildew, triadimenon has been difficult to control its damage. To this end, we use stone sulfur mixture crystallization prevention and control tests, and achieved good results.