Organic Disease & Pest Approaches Growing Great Tomatoes Organic Disease & Pest Approaches Lesson Content 0% Complete 0/6 Steps Identifying & Managing Tomato Disease Organically Tomato Late Blight, Early Blight & Septoria Leaf Spot ID & Organic Management 5 Keys to Preventing Tomato Disease How to prevent late blight in tomatoes Top 4 Tomato Diseases & What To Do Next Purple Leaves on Your Tomatoes? Let’s Talk! Previous Lesson Back to Course Next Lesson