What Diseases Do Dahlias Get?
What Diseases Do Dahlias Get? Stem rot – Stem rot occurs when dahlias are growing in heavy, poorly drained, wet soil. … Mosaic virus – Mosaic virus dwarfs plants and distorts leaves. … Botrytis – Botrytis blight is almost as bad and causes buds to rot and covers the plant with powdery gray mold. How