富顺县杂交稻汕优63、D 优63种植多年,抗病性减弱,近年来稻瘟病时有发生。并有日益蔓延扩大之势。1993年全县示范、推广三环唑浸秧苗防治稻瘟病8500多亩,大大减轻了本田发病,收到明显效果。前两年稻瘟病发生面积较大、受害程度较重的高石、共和等乡,采用三环唑 Fushun County hybrid rice Shanyou 63, D You 63 planted for many years, weakened disease resistance, rice blast in recent years have occurred. And there is an increasingly widening trend. In 1993 the county demonstration to promote tricyclazole dip seedlings prevent rice blast 8500 mu, greatly reducing the incidence of Honda, received significant results. The first two years of blast occurred in a larger area, a higher degree of victimization of high stone, Republican and other townships, the use of tricyclazole