Symptoms of pear anthracnose: pear anthracnose mainly harms fruits. Most diseases occur in the middle and late stages of fruit growth. At first, the lesion was round and light brown, then the lesion expanded, became darker, sunken, soft rot and had obvious concentric wheel lines. Many small particles are formed under the epidermis of the affected area, which are slightly convex and dark brown, and most of them are arranged in a wheel shape. The expansion of diseased spots leads to rotten fruit or fruit core, and the fruit becomes brown and bitter, and the diseased fruit often rots or shrinks into hard fruit.