有种植户来信反映:设施瓜果蔬菜白粉病发病严重,常规的杀菌剂效果不太理想又会造成农药残留,影响瓜果品质,卖不上价钱。现在市场上药剂名目繁多,不知哪种药剂防效更高一点、更安全一点。白粉病在许多重要农作物上普遍发生、危害严重,在设施栽培的瓜果和草莓上尤为严重。防治上要注重发病初期的控制,以防病害的流行暴发:药剂选择要遵循见效快、效果好、安全性高、低抗药性的原则。应用生物农药绿蛇1%蛇床子素水乳剂可以满足这一生产要求。经多年试验示范推广,1%蛇床子素水乳剂400~600倍液防治黄瓜白粉病的效果显著,在病害发生初期喷施,每隔7天一次,连喷2~3次,对 There are letters from growers reflect: facilities, fruits and vegetables powdery mildew serious incidence of conventional fungicide effect is not ideal will cause pesticide residues, affecting the quality of fruits, not to sell the price. Now on the market a wide range of agents, I do not know what kind of agent control a little higher, more secure. Powdery mildew is common in many important crops and is particularly devastating. It is particularly severe on cultivated fruits and strawberries. Prevention should pay attention to the early onset of disease control in order to prevent the outbreak of epidemic disease: drug selection to follow the quick, effective, safe, low resistance principle. Application Biopesticide Green Snake 1% osthole water emulsion to meet this production requirements. After years of pilot demonstration and promotion, 1% osthole water emulsion 400 ~ 600 times the efficacy of cucumber powdery mildew prevention significantly, spraying in the early stages of disease, once every 7 days, and even spray 2 or 3 times, right