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Dormant oil spray for grape vines

Posted by fespo 5 (My Page) on
Mon, Dec 6, 10 at 17:56

Hello all, I have about 20 grape vines growing in my back yard. Last summer I started to see little cut marks on new vine growth. I looked it up and it said to use dormant oil spray. So when do you spray grapes with dormant oil spray? Early spring, now, right before buds? Thanks Frank


Follow-Up Postings:

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RE: Dormant oil spray for grape vines

Frank:

Can you share what you found as your suspected problem? I've never sprayed grapes with dormant oil. Most of the vines you'd spray now end up being pruned off. So if I were to spray it would be right after pruning next spring. I usually prune just as the buds are starting to swell in spring.


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RE: Dormant oil spray for grape vines

I only use a good quality Copper Spray.


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RE: Dormant oil spray for grape vines

I put a copper spray on my grapes this fall. Mostly because it was already mixed up and going onto the peaches. That's for fungus and fungus doesn't give little cut marks.

I do a dormant oil spray on the grapes in the spring. I don't worry about pruning the sprayed branches off because the dormant oil is really cheap. But you could prune first and then spray, as long as the unsprayed trimmings were removed from the property immediately.

I like to dormant spray before the grapes wake up and I don't prune until the first buds at the end of the branches start to show color.

What is it that you think is giving the little cut marks?


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RE: Dormant oil spray for grape vines

Hello all, I don't know what little bug is cutting my grape vines but I did see a piture and name on a wine site I read.

http://www.winepress.us/forums/index.php?showforum=9

I will try to find it and post it. Someone had the same problem and they said to use dormant oil spray. Thanks


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