枇杷叶污病。多发生在叶背,发病初期为暗褐色圆形或不规则的斑点。后期长出烟状的霉状物,最后全叶呈煤烟状。常在多雨或风暴后发病严重。防治方法:首先要增强树势,多施磷、钾肥,并及时清除田间病叶,减少病源菌。发病初期及新梢帛发 Loquat leaf stains. Occurred in the leaves back, early onset of dark brown round or irregular spots. Tobacco later grow mildew, the last full leaf was sooty. Often in severe rain or storm onset. Prevention and treatment methods: First of all, to enhance the tree vigor, more phosphorus, potassium, and timely removal of disease leaves in the field to reduce pathogenic bacteria. Early onset and new shoot silk hair