目前已进入瓜类霜霉病容易发生的季节,防治好霜霉病对确保主要瓜类高产优质、增产增收,效益特别显著。在进入瓜类霜霉病发病期后,当田间出现了瓜类霜霉病的发病中心,首先摘去病叶,然后使用防效优异的52.5%噁酮·霜脲氰(抑快净)水分散粒剂1500倍液,或72%霜脲·锰锌(克露)可湿性粉剂,或72.2%霜霉威盐酸盐(普力克)水剂600~700倍液,或百菌清可湿性粉剂750倍液喷洒1次。保护地应在晴天上午喷药,喷后闭棚提温,使 At present, it has entered the prone season of melon and downy mildew, preventing and controlling downy mildew is particularly effective in ensuring the high yield and quality of the main melons, increasing yield and income. After entering the melon stage of downy mildew onset, when the incidence of melons downy mildew center, first remove the diseased leaves, and then use the excellent anti-52.5% Dispersible granules 1,500 times, or 72% cream urea manganese zinc (Kluyver) wettable powder, or 72.2% propamocarb hydrochloride (Pulik) agent 600 to 700 times, or chlorothalonil wettable Powder 750 times spraying 1 times. Protection should be sprayed in the sunny morning, closed shed after spraying temperature, so