苹果煤污病、蝇粪病的发生与防治丽江地区由于海拔高，昼夜温差大，苹果色泽好、味甜，已成为滇西北苹果主产区，种植面积达到６６６７ｈｍ２以上。但近几年苹果煤污病、蝇粪病大发生，一般发病率为７２５％～８６％，重病园达９２％～９５１％，严重影响苹果的着色... Due to high altitude, large temperature difference between day and night, good apple color and sweet taste, Lijiang has become the main producing area of ​​apple in northwestern Yunnan and the planting area has reached over 6667hm2. However, in recent years coal apple disease, fly feces disease occurred, the general incidence of 72  5% ~ 86%, seriously ill Park up to 92% ~ 95  1%, seriously affecting the coloring of the apple ...