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棉花枯、黄萎病这一毁灭性的病害,近年来在我省扩展、蔓延十分迅速。据省农村抽样调查队最近对我省17个产棉县、453块地、874.28亩棉田的抽样调查,其发病面积约占棉田面积的60%,发病田块平均病株率为15.2%,较严重的棉田病株率为30%以上,严重地危害了我省的棉花生产,也影响着棉花的内在品质。造成这一现状主要原因有两条:一,近年来棉花种子管理混乱,种子滥引、滥调,从病区引进种子,将病菌带入新棉区和无病区;二,棉花收购籽棉,统一返籽、返饼,造成棉种混杂和枯、黄萎病交叉感染。省农村抽样调查队对不同供种单位的棉田和不同棉花品种枯、黄萎病的发病情况的调查结果表
Cotton blight, Verticillium wilt disease is a devastating disease that has expanded in our province in recent years and spread very rapidly. According to the sample survey of 17 rural cotton production counties, 453 parcels and 874.28 mu cotton fields in Shaanxi Province, the provincial rural sample survey team reported that the area of disease accounted for about 60% of the total cotton area and the average diseased area of the affected plots was 15.2% Serious cotton plant disease rate of 30% or more, seriously harmed the province’s cotton production, but also affect the inherent quality of cotton. The main reasons for this situation are twofold: First, the chaotic cotton seed management in recent years, the seed abuse, abuse, the introduction of seeds from the ward, the bacteria into the new cotton zone and no disease; Second, the acquisition of cotton seed cotton, unified Back to the seed, the cake, resulting in cotton mixed and withered, Verticillium wilt cross-infection. Provincial Rural Surveying Teams Survey results of the incidence of withered and Verticillium wilt in cotton fields and different cotton varieties from different suppliers