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黄瓜霜霉病是大棚黄瓜的主要病害之一,每年几乎所有大棚都有轻重不同的发生。尤其是黄瓜生长的中后期,遇到阴雨天气,病害发生迅速,3～5天足以使全部植株枯死。目前百菌清是公认的防治该病的理想药剂。但以往推广应用的百菌清主要是可湿性粉剂和烟剂两种剂型,实践证明,它们各自都有不足之处:烟剂应用时要求大棚密闭良好,而实际生产中多数难以达到,同时燃烧过程中产生的有害气体易引
Cucumber downy mildew is one of the main diseases of greenhouse cucumbers, almost every year there are different severity of the occurrence of greenhouses. Especially in the late growth of cucumbers, encounter rainy weather, rapid disease occurs, 3 to 5 days enough to make all the plants dead. Chlorothalonil is currently recognized as the ideal agent for the prevention and treatment of the disease. But in the past to promote the application of chlorothalonil is mainly WP and smoke two formulations, practice has proved that they each have shortcomings: the application of tobacco requires airtight greenhouse good, and most of the actual production is difficult to achieve, while burning The process of generating harmful gases easily lead