防治黄瓜霜霉病的新药剂杜邦克露为７２％可湿性粉剂，具有保护和治疗的双重作用。施药后药液能很快渗入到植物体内上下传导，耐雨水冲刷，产生抗药性缓慢。此药还含有锰、锌离子，可补充微量元素，促进生长和果实着色，增加产量及品质。一般在发病初期用药，使用浓度为６... DuPont Keluo, a new drug that controls cucumber downy mildew, is a 72% wettable powder with a dual role of protection and treatment. After spraying the liquid can quickly penetrate up and down the plant body conduction, resistance to rain erosion, resulting in drug resistance is slow. This medicine also contains manganese, zinc ions, can supplement trace elements, promote growth and fruit coloring, increase yield and quality. Generally in the early onset of medication, the use of concentration of 6 ...