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阜南县位于皖西北阜阳市南,是盛产姜的农业大县。近年来随着姜加工出口企业异军突起,姜片出口原料需求量激增,姜种植面积达1万hm2,占全县总耕地面积的20%,年总产姜65万t,已成为阜南支柱产业。但是,姜瘟病为害有加重的趋势。据笔者近3a的调查,其病田率达8.4%～25.5%,一般病棵率2
Funan County is located in the southwest of Fuyang City, Anhui Province, is a large agricultural county of ginger. In recent years, with the sudden emergence of ginger export processing enterprises, ginger exports surge in demand for raw materials, ginger planting area of 10,000 hm2, accounting for 20% of the total cultivated area, annual total 650,000 tons of ginger, has become a pillar industry in Funan . However, the harm of ginger blast is aggravating. According to the author’s investigation of the past 3 years, the rate of disease field reached 8.4% ~ 25.5%, and the average disease rate was 2%