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Planning on using Lavlin 71B to start tomorrow. Then CH16 malolactic bacteria when primary is completed.

Thanks for the feedback, picked the grapes today. After Crush and destem: brix = 23, SG 1.096, pH=3.21, TA= 8.6 g/100ml Amazing how much things change after picking and crushing. Seems like good numbers to me for Marquette.

I think it may be time to harvest the Marquette, but I have been waiting for the TA to drop, but it hasn't changed much in a couple weeks. 8/30/22 Brix 22, pH 3.15, TA 13.5g/L 9/10/22 Brix 24, pH 3.27, TA 14.0g/L Should I wait for the TA to drop, or just go ahead and pick? Some...

I was afraid of that, I've been spraying Mancozeb since bud break, every 10 to 14 days. We are in western Ohio and it has been 80s to 90s lately, some rain as well.

Any idea what these dark spots are and what to do about them? These are on some four-year-old Marechal foch vines.

Update on Marquette Picked on September 2nd, started fermentation on the 3rd. After 6 days of fermentation: SG = 0.992 pH = 3.28 TA = 1.5 ( actually went up a little) I saw the comment on using the 71B yeast, and I think I actually have some in my freezer, but I had already used the RC212...

Getting back to this thread to report on the harvesting of the Marquette. I have 7 vines on their 4th year. This is the first year I was diligent on the Spray program and the 1st year there were any grapes worth picking I have been watching the brix. I would pick 6 or so grapes from random...

I'll be sure to update this thread when I get that point. Thanks.

Thanks for sharing you chart. We had a late freeze in Mid May, lost all chutes, and the vines started over with new chutes. So it looks like my vines are 5 or 6 weeks behind yours. I would be interested in hearing when you are able to harvest your marquette grapes. I have kept good records...

I found this note in an OSU newsletter. https://ohiograpeweb.cfaes.ohio-state.edu/sites/grapeweb/files/imce/pdf_newsletters/OGEN_06_June_2013_%2824%29.pdf NOTE: Do not apply Captan, sulfur or copper fungicides within 30 days of harvest or fermentation may be affected and DO NOT combine Captan...

I stopped spraying the mancozeb when I saw the initial bunches start to color change. Most of the crop is still very green. But you bring up an issue that I have not been able to find much information. 1. How do you determine when harvest will be so you can observe the PHi? 2. When do you...

This is my third year for my vines and hoping to to get a crop to harvest this year. They look healthy so far and I had been treating with Mancozeb up to this point but stopped because of the pre-harvest interval. So what can I use up to near harvest? Thanks in advance,

I'm in Ohio, and starting seeing it a couple of weeks ago in Marquette. I also have Marechal Foch and have not seen any color change in them yet.

Yeah I think it's water under the bridge at this point, we'll just see what happens and plan better next year.

Thanks for the great link above, I also found this from Ohio State University for Homeowner Control of Grape Black Rot that supports the use of Mancozeb...

I am new to growing grapes, planted these vines 3 years ago, Marechal Foch. Is this a disease.? See attached pics Thanks in advance.

I have about 15 gallons of Marechal Foch(grown in Darke County Ohio) that I fermented and racked into carboys about 4 weeks ago, when can I start malolactic fermentation and what would be a good bacteria?

there is a lot of lees in the bottom of the carboys, should I rack before doing the malolactic fermention?

Sounds good. What do you guys like to use for malolactic bacteria?

I am about 1 1/2years into wine making and have made a half a dozen Wineexpert kits, two years of strawberry wine, and now this is the second year of making Chambourcin. This year's Chambourcin: Picked 93 lbs of grapes from local vineyard. Destemmed and crushed by hand, yeilded about 10...