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  • Late Blight on Tomato Plants

    Created by Karen Hermansen on

    I have wonderful loamy clay soil, but it is already high is phosphorus and potash and on the alkaline side due to the limestone bedrock here in southeastern Wisconsin. I see that your bat guano is very high in phosphorus. What would be a good organic fertilizer to use. After forty years of organic gardening, in three different states, I never had a problem with late blight, but for the last two years, despite planting them in different beds, I have lost all my tomatoes to late blight. Any suggestions?

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