烤烟生产是酉阳县主要三大支柱产业之一。进入90年代以来 ,每年种植面积都在 670 0ｈｍ2 以上 ,个别年份达到 1万ｈｍ2 。随着烤烟年复一年地种植 ,各种病害也相继发生 ,有的已发展到严重威胁烤烟生产的程度。为减轻病害造成的损失 ,提高烟叶的产量和质量 ,笔者于 1 996～ 1 99 Flue-cured tobacco production is one of the three main pillar industries in Youyang County. Since entering the 90s, the annual acreage is above 670hm2 and in some years it reaches 10,000hm2. With the flue-cured tobacco planted year after year, a variety of diseases have also occurred, and some have been developed to a serious threat to the production of flue-cured tobacco. In order to reduce the damage caused by disease and improve the yield and quality of tobacco leaves, the author in 1 996 ~ 1 99