downy mildew
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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...- user 36973
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- downy mildew mancozeb phosphorous acid
- Replies: 2
- Forum: Grape Growing & Vineyard Forum
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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...- user 36973
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- downy mildew jms stylet oil phosphorous acid powdery mildew
- Replies: 6
- Forum: Grape Growing & Vineyard Forum