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Eric Vinje

Hello Olinga –

Please find our recommendations for treating early and late blight in tomatoes:

• Plant resistant cultivars when available.
• Remove volunteers from the garden prior to planting and space plants far enough apart to allow for plenty of air circulation.
• Water in the early morning hours, or use soaker hoses, to give plants time to dry out during the day — avoid overhead irrigation.
• Destroy all tomato and potato debris after harvest.

If disease symptoms are observed, apply a copper based fungicide (2 oz/ gallon of water) every 7 days or less, following heavy rain or when the amount of disease is increasing rapidly. If possible, time applications so that at least 12 hours of dry weather follows application.

Early Blight

Late Blight

Hope it helps!