user 36973
owner, winemaker
- Joined
- Jun 13, 2017
- Messages
- 706
- Reaction score
- 536
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 a final spray through the vineyard post harvest with a tank mix of mancozeb and phosphorous acid. This should both attach any currently growing downy mildew and also protect against future infestation. What do others do and when? Thanks.
I'm figuring this fall I'll do a final spray through the vineyard post harvest with a tank mix of mancozeb and phosphorous acid. This should both attach any currently growing downy mildew and also protect against future infestation. What do others do and when? Thanks.