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近些年来汉中地区小麦散黑穗病的发生不断加重.1988年全区发病面积17.07万亩,平均病穗率1.28%;1989年发病面积增加到57.66万亩,平均病穗率为2.96%,严重田块达17%,每亩损失小麦10公斤左右,全区约损失小麦500多万公斤。为防治小麦散黑穗病的发生,从1989年秋播前开始,全面推行《汉中地区小麦散黑穗病防治方案》,到1992年夏收前,3年全区共
In recent years, the occurrence of wheat smut in Hanzhong area has been aggravating .In 1988, the total area of 170.07 mu was affected in the region, with an average disease rate of 1.28%; in 1989, the area of disease was increased to 576.6 mu with an average disease rate of 2.96% Blockage of up to 17% of the serious fields, wheat loss of about 10 kg per acre, the region about 5000000 kilograms of wheat loss. To prevent the occurrence of wheat smut, from the autumn of 1989 before the broadcast, the full implementation of “Hanzhong wheat scattered smut control program”, to the summer of 1992 before the close, a total of three years in the region