Common Plant Diseases | How to Prevent
Common plant diseases are caused by bacterial, fungi, or viruses. They can enter your garden in many different ways. Most often, it can be difficult to diagnose what the disease might be if it even is a disease. Symptoms usually appear similar from viral to bacterial or even to fungal. Even insect damage and cultural practices can look much the same. Common Plant Diseases Powdery Mildew - these white, powdery spores caused by fungi are common in dry conditions. This disease usually appears on upper leaves and then will spread downward. Early treatment and removal of damaged areas by pruning will often save the plant. Gray Mold - This is also a fungus that produces wrinkled, gray leaves, especially on decaying and dead tissues. Remove the affected parts immediately and improve air circulation and debris around the base of the plant or in between branches and leaves. Sooty Mold - This mold is typically black and is also caused by fungal growth on honeydew excreted by ins...