这两种缺钙病都是果实成熟期和贮藏期常见的病害，在各产区都有发生，红富士、新红星、青香蕉、金冠、国光等品种较严重。苦痘病发病初期，果面上以皮孔为中心出现圆斑，颜色比正常果面深，在绿色或黄绿色果面上显出浓绿色，在红色果面上显出暗红色，圆斑周围有深红或黄绿色晕 Both of these calcium-deficiency diseases are common diseases in the ripening and storage stages of fruit, occurring in all the producing areas. The varieties such as Red Fuji, New Red Star, Green Banana, Golden Delicious and Guoguang are more serious. In the early stage of the development of bitter pit disease, the surface of the fruit is characterized by a roundish skin around the lenticelis. The color is darker than normal, dark green on the green or yellowish green fruit surface, dark red on the red fruit surface, Dark red or yellow green around the halo