Presentations: Controlling Early and Late Blight of Tomatoes Organically

Early blight, caused by the fungus Alternaria solani, and Late blight, caused by the water mold Phytophthora infestans (and made infamous because of its devastation of potatoes in the Irish potato famine), are perhaps the biggest limiting factors to organic tomato production in many regions with wet and sometimes cool conditions.

Presentation

• Options for Controlling Early and Late Blight of Tomatoes Organically --A Microsoft PowerPoint presentation
• Organic Blight Control --Downloadable notes in Microsoft Word

Other Resources

• ATTRA publication on organic tomato production
• TOMCAST forecasting system for early blight
• Early blight lesson from the American Phytopathological Society
• Late blight lesson from the American Phytopathological Society
• Two studies of organic tomato disease control methods are included in this list of research reports from the Organic Farming Research Foundation. (Includes Porter Farm, New York study mentioned in PowerPoint presentation above)
• Sustainable vegetable production information for the South from North Carolina Cooperative Extension
• Missouri tomato production information
• Tomato disease information from Cornell
• University of California information on tomato pests

<< Back to list of online resources