garyewilletteo Blog

Why Have My Dahlia Leaves Turning White

Why Have My Dahlia Leaves Turning White -infected leaves will appear to have white mold covering them or on their undersides as if someone sprinkled them with talc or confectioner’s sugar. when a dahlia is infected with aster yellows, leaves may appear light green, yellow, or white and be stunted or.white spots on dahlia leaves are likely caused by a fungal disease called powdery mildew. If left untreated, infected leaves will lose their ability to properly photosynthesize, resulting in distorted or discolored leaves that will eventually wilt and fall off.common causes of problems with dahlia leaves include too much or too little water, nutrient deficiencies, pests, or fungal.