胡杨锈病是胡杨的主要病害之一。一般4月份发生,5月份蔓延,6月份达到致病高潮。在锈病侵染过程中,植株反复落叶,一到寒冬就大量死亡,病株死亡率高达60％以上。为了防治胡杨锈病,以往都采用“敌锈钠”和“萎锈灵”,效果不太明显,常有反复。1983年,三十团场在师农科所科技人员指导下,一方面从加强胡杨幼苗的水肥管理入手,促进幼苗早发、健壮,提高抗锈病能力。另一方面,在5月份对全团场48.5亩胡杨苗圃用含量为15％粉锈宁可湿性粉剂(四川化工研究所生产)1:500倍液叶面喷雾,每隔20—30天喷一次,连续喷四次,基本上消灭了胡杨锈病。并比 Populus rust is one of the main diseases of Populus euphratica. It usually occurs in April and spread in May, culminating in the disease in June. In the rust infection process, plants repeatedly deciduous, a large number of deaths in winter, the diseased plant mortality rate as high as 60%. In order to prevent and cure Populus euphratica, we used “enemy rust sodium” and “ailment rust” in the past, the effect is not obvious, and often repeated. In 1983, under the guidance of scientific and technical personnel of the Institute of Agriculture and Agronomy, thirty groups of fields started with strengthening the management of water and fertilizer of Populus euphratica seedlings on the one hand, and promoted the seedling to grow early, grow robust and improve the anti-rust ability. On the other hand, in May, 48.5 mu of Populus euphratica nursery was sprayed with a 1: 500 foliar spray of 15% powdery mildew WP (produced by Sichuan Chemical Research Institute) in a total area of ​​48.5 mu. The spray was sprayed once every 20-30 days, Spray four times, basically eradicated the rust of Populus euphratica. And than