downy mildew

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  1. U

    Post harvest downy mildew control question

    I've noticed some cane damage or sensitive varietals from insufficient control of downy mildew as I've pruned through the vineyard this spring. I had thought the last captan spray would do the job but apparently not enough for the extended warmth we had last fall. I'm figuring this fall I'll do...
  2. U

    Tank mix phosphorous acid + JMS Stylet Oil?

    I'm planning out my spray schedule this year and am looking for a 0 PHI solution for PM and DM, so I can control these diseases throughout the harvest season. Looks individually the 0.5% phosphorous acid (Rampart) sprays are good for DM and 1% JMS stylet oil is good for PM but is there risk of...