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白粉病是新疆多种瓜类的严重病害之一。瓜类在生育的中后期由于白粉病危害,叶片和茎蔓局部或全部萎缩硬化,并逐渐变为白色或褐色而干枯,致使果实产量和含糖量下降,风味大减,甚至不堪食用。 近年来,各地多用托布津防治白粉病,白粉病对其产生了抗性,因而防治效果越来越差,急需选用新的有效药剂。1981年,我们在全国大田农药试验网的组织下,用15％粉锈宁可湿性粉剂,在甜瓜(哈密瓜)和黄瓜上进行白粉病的防治试验。 供试药剂为四川化工研究所生产的15％
Powdery mildew is one of the serious diseases of many melons in Xinjiang. Melons in the late reproductive endangered powdery mildew, leaves and stems all or part of the shrinkage sclerosis, and gradually become white or brown and dried, resulting in decreased fruit yield and sugar content, greatly reduced the flavor, or even unbearable consumption. In recent years, Tuobujin is used all over the world to control powdery mildew and powdery mildew causes resistance to it. As a result, the effect of prevention and treatment is getting worse and worse, and new and effective medicaments are urgently needed. In 1981, we conducted the prevention and control test of powdery mildew on melon (cantaloupe) and cucumber under the organization of Daejeon Pesticide Experiment Network with 15% Triadimencin WP. Test agents for the Sichuan Institute of Chemical Technology produced 15%