棉花苗期病害为我区棉花生产上主要病害之一,是棉花一播全苗,壮苗早发的严重碍障。自汞制剂(赛力散、西力生等)停止应用以釆,致使苗病严重发生,引起烂籽、烂芽,缺苗断垄,甚至翻毁重种,直接影响棉花正常移栽和壮苗早发,而且进一步引起棉花杂籽补种,造成品种严重混杂,是 Cotton seedling disease is one of the main diseases in cotton production in our district. It is a serious obstacle to the early planting of cotton seedlings and seedlings. Since the mercury preparations (Sai ​​Li San, West Lixin, etc.) to stop the application to preclude, resulting in serious Miao disease, causing rotten seeds, rotten buds, lack of seedlings broken ridge, or even overturned heavy species, a direct impact on normal cotton transplanting and strong Miao early hair, but also further caused by cotton seed replanting, resulting in serious mixed species is