Diseases of vegetable bedding plants include Botrytis blight, damping-off, powdery mildew, tospoviruses and bacterial diseases such as bacterial leaf spot, bacterial canker, and black rot of Brassicas. To effectively control diseases, it is important to properly identify them. When diseases are not successfully managed, it is often because the cause was not accurately identified. Symptoms caused by poor cultural practices can also mimic disease symptoms. Fungicides cannot correct problems caused by high soluble salts, poor aeration or a nutrient imbalance. An integrated approach to disease management involves the use of resistant cultivars, sanitation, sound cultural practices and the proper use of the correct pesticide (page 64).