苹果霉心病亦称心腐病,早就有在辽宁果区发生的报道。该病每年都有发生,多雨年份发生较重。不同品种发生程度也不相同。近年来我省果区栽植的品种有较大的变化,有些生产单位反映,霉心病有日益严重的趋势。为逐步搞清该病的发生条件和流行规律,1997年我们做了霉心病发生情况的调查,结果如下。一、采前落果霉心病的调查:调查品种为品质较好的元帅、金冠、有发展前途的富士和目前栽培量大的国光。调查地点选择了辽南果 Mildew heart disease, also known as heart rot, has long been reported in Liaoning fruit area. The disease occurs every year, heavy rainy years occur. The occurrence of different varieties is not the same. In recent years, the cultivated varieties of fruit trees in our province have been greatly changed. Some production units reflect that mildew and heart disease are becoming more and more serious. In order to gradually understand the conditions and prevalence of the disease, in 1997 we did a survey of the occurrence of mold heart disease, the results are as follows. First, before falling off the test of fungal heart disease: investigation of varieties of better quality Marshal, Golden Delicious, Fuji has a promising future and the current cultivation of large country light. Liaonan selected the survey site fruit