近十年来,美国阿肯色州因全蚀病的危害使小麦造成十分严重的减产。过去对这种土壤习居菌——禾顶壳菌(Gaeumannomyces graminis Var tritici)采用迟播来作为一种有效地防治措施。近年由莫巴伊(Mobay)化学公司制造的一种新的杀菌剂粉锈宁(Bayleton),经室内和大田试验的表现对全蚀病有良好的防治效果。室内鉴定其有效浓度为百分之十,在大田一般采用可湿性粉剂拌种。本报导将十种处理分别以早、晚两期播种。这两期播种的处理在出苗期均无症 In the past ten years, the damage caused by total eclogion in the U.S.Arkansas has caused a very serious decrease in wheat output. In the past, late sowing was used as an effective control measure against this soil habitat, Gaeumannomyces graminis Var tritici. In recent years, a new bactericide, Bayleton, manufactured by Mobay Chemical Company, has been shown to have good control of total eclipse by indoor and field trials. Indoor identification of its effective concentration of 10 percent, in the field generally wettable powder dressing. This report will be ten kinds of treatment were sown early and late two. The two seeding treatments are asymptomatic at the seedling stage