柑桔疮痂病又称癞头疤、疥疮疤。近年来宜昌城区及宜都、宜昌等部分蜜柑产区发病较重 ,发病盛期一般在 4月中下旬至 5月下旬 ,尤以幼果期发病最盛。1　为害特点新叶、新梢、花瓣、花萼、幼果等幼嫩部分易受害。受害叶片开始呈现褐色圆点 ,周围组织水渍状 ,清晰透明 ,后变成蜡黄 Citrus scab also known as scabs, scabies scabies. In recent years, Yichang City and Yidu, Yichang and other parts of the incidence of heavier citrus, the peak incidence of the disease generally in late April to late May, especially in the peak incidence of young fruit. 1 damage characteristics of new leaves, shoots, petals, calyx, young fruit and other young vulnerable parts. Damaged leaves began to appear brown dots, water stains around the organization, clear and transparent, after turning into a yellow