1975年我市部分社队发现柿椒病害呈现花叶、皱缩、落叶、落花、落果、束顶等病症。1977年蔓延遍全区,轻的果实变小、畸形,造成减产,重的绝收。去年郊区良种场有5亩柿椒平均亩产1187斤,比1975年减收8—9成。为了找出发病原因,提供防治措施,我们于1977—1978年对柿椒这种病害做了初步调查研究,现将结果整理如下: In 1975, some of the communes and communes in our city found that the diseases of the persimmon are mosaic, shrinkage, deciduous, falling flowers, deciduous fruits and bunchy tops. In 1977 spread throughout the region, light fruit smaller, deformity, resulting in reduced production, heavy absolute income. Last year, the suburbs of good seed field 5 mu of average yield per mu 1187 kg, 8-9% less than in 1975. In order to find out the cause of the disease and to provide prevention and treatment measures, we conducted a preliminary investigation on the disease of persimmon from 1977 to 1978. The results are summarized as follows: