and diseases, including the much-despised aster yellows, botrytis, and powdery mildew, they suffer at the mandibles of a changing roster of pests through the growth season. From aphids ...
Disease prevention is another reason to cut ... The likes of leafhoppers and caterpillars are aster pests that can overwinter in old stems and foliage around previously infested plants.
Browse this list of plants to find out which common pests and diseases are most likely to affect a species or genus. If you know what is affecting your plant browse the pest and disease index.