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Around New York...Statewide (Tim Martinson)Welcome to our secondnd week of Veraison to Harvest. Last week we had some challenges getting back in the rhythm of sample collection and analysis. COVID-19 played a part – in that some samples were delivered to the AgriTech Ad-ministration building (Jordan Hall) instead of the Cornell Enology lab. This week has run smoother.

After being sort of in the early stages of post-veraison last week (or some like Concord and Cabernet Franc were not quite there), this week’s samples (see fruit composition table p. 6) showed significant gains in maturity, led by the Minne-sota cold climate cultivars with juice soluble solids ranging from 18-21 °brix – about 2° ahead of last year, gaining about 1.6° since last week. Hybrids were variable, ranging from 12.0° to 18.8° Brix (1.3° ahead of last year). Many vinifera varieties were hovering in the mid teens, but earlier vari-eties (Charonnay, Gruner Veltliner, and Lemberger) were up around 18° Brix – and 1° ahead of last year at this time. Natives (Concord, Catawba, Niagara) hovered around 12° brix, but are +2.4° ahead of 2019.

Acids dropped a lot, led by a 5.1 g/l drop in the Natives – but vinifera followed closely behind, averaging a 4.6 g/l drop in titratable acidity (TA). Hybrids lost 3.8 g/l on average. Acids dropped more slowly in the cold-hardy Minnesota varieties, which dropped 2.1 g/l last week. But overall, TAs are ranging 3-6 g/liter lower than last year at this time.

Berry weight is variable – but seems to be on track with what we saw last year – Not bigger, not smaller overall.

Thanks to Robin Ross of Arrowhead Spring Vineyards in Niagara County near Lockport for contributing samples from her vineyard again this year.

Finally, we highlight virologist Marc Fuchs’ effort to mea-sure the impact of grapevine leafroll infections on Concord vines (page 5) with an experimental planting at Cornell Ag-riTech.

Statewide Vineyard Crop Development Update #2

September 4, 2020

Edited by Tim Martinson and Chris Gerling

Veraison to HarVest

Long Island (Alice Wise) After a season of drought, the East End of Long Island has recently been experiencing occasional showers. In general we need the rain. That said, it is just about at the time of year – around Labor Day - when cluster rot/fruit fly season commences. The significance of this complex will depend on the frequency and pattern of rainfall over the next few weeks. Currently, there is a smidgen of Botrytis and just a few fruit flies. However, birds have been ravenous so there are definitely some damaged clusters around. Bird damage, grape berry moth damage, tight/compact clusters and thin berry skins are all contributing factors. Botrycides usually help but sometimes seem to be easily overwhelmed when pressure is high.

In the LIHREC vineyard, Itasca, a newly released cold hardy hybrid from Minnesota, was harvested Sept. 3 (see photo). The 3 year old vines had a tough year between drought stress and being ultra-exposed to the high winds/salt dam-age during the Aug. 4 tropical conditions. These vines are VSP-trained though their floppy habit suggests that they may be better suited to the high wire. We Brix tested a few

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Itasca, the latest cold-climate variety released by the University of Minnesota’s grape breeding program, was harvested by Alice Wise’s program from her variety trial at the Long Island Horticultural Research and Extension Center in River-head, NY.

Photo by Alice Wise

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berries, they were consistently ~ 24°Brix. Have not yet tested the TA but it was moderate, probably 8-9 g/l.

Harvest of fruit for sparkling wine is on the horizon. Earlier varieties at the LIHREC vineyard include NY81, a Cayuga White x Riesling hybrid, Zweigelt, Pinot Noir, Muscat Ottonel and Auxerrois. Auxerrois is a sib-ling of Chardonnay but has distinctly different flavors and is earlier ripening. It is also reliably susceptible to Botrytis, though fruit looks clean as of right now.

There were no LIHREC vineyard tours this year. This is unfortunate as it allows vineyard managers, wine-makers and other professionals to taste fruit from both familiar and unfamiliar varieties. Last fall, some of the favorites included Grüner Veltliner, Vermentino, Mus-cat Ottonel, Malvasia Bianca, Albarino, Verdejo and Zweigelt. Speaking of new varieties, we planted Tan-nat, Fleurtai and Soreli, the latter two being disease re-sistant hybrids with Tocai Fruilano as a parent. TF fruit can be tasty but the vines often do not set a large crop. This in turn exacerbates vigor problems. Thus, if these hybrids can provide good yields of fruit that is at least of equivalent quality – and they can thrive with fewer fungicides – this may interest a number of growers.

Finger Lakes (Hans Walter-Peterson)Warm and dry conditions have been predominating the post-veraison period here in the Finger Lakes, which has helped to push Brix levels higher than usual for this time of year, and acidity somewhat lower as well. The higher sugar levels may also be the result of cropping levels being lighter than anticipated. Constel-lation Brands said that Aurore grapes came in lighter than expected and with significantly higher sugar con-tent than anticipated. Our friends out the Lake Erie re-gion are seeing similar trends in Concords as well. The weather conditions have also meant that there is very little in the way of cluster rots forming in the more sus-ceptible varieties like Vignoles, Marquette and Pinot noir, which is great news for growers, but bad news for our grape pathologist, Katie Gold (cue the sad trom-bone). There’s obviously lots of time left to go before harvest is done, but it’s a good start and we’ll take it.

Speaking of harvest, we have started to see more ac-tivity going on in vineyard blocks this week. In addi-tion to some early red hybrids like Baco, some grow-ers have started to pick Pinot noir for sparkling wine this week also. At the Teaching Vineyard near Dresden, we picked Marquette on Thursday and Friday, which was already at 23° Brix at the beginning of this week (August 31). Last year at this time, we were at about 18° Brix. Next up will be our two seedless table grapes, Marquis and Jupiter, as well as Diamond.

The fall forecast from the National Weather Service is still predicting higher than normal temperatures for the northeastern US. If this bears out, that should mean

that sugars bump up a bit higher and acidity drops a little faster than they would otherwise. Monitoring fruit chemistry in year’s like this will be even more important in making harvesting decisions, rather than relying on when something would normally be picked based on the calendar.

Lake Erie (Jennifer Russo)This week in the Lake Erie Region, harvest began to ramp up with Aurore, Seyval blanc, Edelweiss, Elvira, and Marquette varieties coming off the vine. Concord growers have started taking samples into their proces-sors and brix accumulation and sugars are tracking earlier than last year. One industry representative reported that Niagara Brix are averaging at 10.8° and Concords at 11.0° across the belt. Also stating that at this point in the season we are making a full °Brix ev-ery three days and have been doing so since last Mon-day, August 27th (see Concord Berry Curve, p 4). For the month of August, the Cornell Lake Erie Research and Extension Laboratory in Portland, NY Network for Environmental and Weather Applications (NEWA) station reported that our average air temperature in °F was 71°, with the maximum temp of 85.3° and mini-mum of 55.2°. We recorded 2.83 inches of precipitation and 55 hours of leaf wetness. The average maximum air temperature for month was 77.8° and the average minimum temp 63.0°.

There was some trepidation at this point, with concerns expressed about how quickly sugars are accumulating. There are reports that Concord processors are looking at starting up on September 20th and Niagara start-ing on September 14th. To keep abreast with what is happening in the Lake Erie region, check out the Lake Erie Regional Grape Program Extension team’s week-ly podcasts. This week’s podcast covers the Executive Order about deferring FICA in your business manage-ment.

Finger Lakes Teaching Vineyard.: Marquette fruit ready for harvest at Dresden this week. The nets have been especially important this year to deter bird damage.

Photo by Hans Walter-Peterson

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Hudson/Champlain (Jim Meyers)During the past week, GDDs have been accumulating at a historically average rate, keeping Champlain Val-ley vineyards well ahead of five year averages year-to-date (Figure 1). As shown in Figure 2, no vineyards are behind in growing degree versus last year, despite Hudson Valley having been behind up until last week. Precipitation remains behind vs 2019 in all vineyards. Figure 3 indicates that Champlain is ripening well ahead of this date in 2019. Figure 4 indicates good rip-ening weather in the coming week

Figure 1. Comparison of 2020 and historical cumulative Growing Degree Days (GDDs) in a representative vineyard from each of four sub-regions of eastern New York.

Figure by Jim Meyers

Figure 2. Difference in cumulative Growing Degree Days (GDDs) and pre-cipitation between 2020 and 2019 as of September 4th. Each colored circle represents a farm location. Local CCE offices are represented by colored squares.

Figure by Jim Meyers

Figure 3. Comparison of 2020,2019, and 2018 ripening at 16 vineyards in eastern New York. CV = Champlain Valley. HV = Hudson Valley. UHV = Upper Hudson Valley.

Figure by Jim Meyers

Figure 4. Six day growing degree-day (GDD) forecast for representative vineyards from each of four sub-regions of eastern New York.

Figure by Jim Meyers

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Concord Berry Curve (Terry Bates)This week’s samples from the Cornell Lake Erie Re-search and Extension Laboratory show berry weight (top) again catching up to the 21-year average.

Juice soluble solids (bottom) are running about a week ahead of the long-term aversge, and increasing rapidly.

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Concord Planting at Cornell AgriTech Tests Grapevine Leafroll Disease Impact

Tim Martinson

Grapevine leafroll-associated viruses (GLRaV) are serious pathogens of Vitis vinifera cultivars worldwide, and are associated with reduced yields, and delayed accumulation of juice soluble solids. In New York, a survey of Finger Lakes vineyards in 2008 showed leafroll virus infections to be widespread across several vinifera and hy-brid varieties. It also documented delays in juice soluble solid accumulations ranging from 3-5°Brix in Cabernet Franc. In New York and nationwide, the economic impact of leafroll virus is very significant.

The impact of leafroll infections on Concord grapes has not been characterized. Virologist Marc Fuchs found that many commercial Concord vineyards are infected with GLRaV-3 (a common virus transmitted by mealy-bugs) – but without visible symptoms, apparent yield loss or significant delay in ripening to processors’ brix standards.

Marc decided to plant a trial vineyard to compare performance of vines that were infected with GLRaV-3 and vines without the virus. To obtain virus-free vines, it was necessary to use shoot-tip tissue culture to eliminate the virus from infected vines.

The vineyard, planted in 2015 and now in its third full cropping season, will be harvested at maturity, and both the yield components (yield, cluster number, cluster weight) and quality (juice soluble solids) as well as vine growth will be measured.

The encouraging data so far from past year’s harvest is that there was no effect on juice soluble solids and a modest effect on growth and yield. This is good news, as the 20,000 acres of Concord grapes grown in New York constitute two-thirds of the grapes grown in New York. Many of the Concord vineyards have been in continuous production for over 50 years.

August 31, 2020. Cornell virologist Marc Fuchs collects leaf tissue to test for Grapevine Leafroll-Associated Virus 3 (GLRaV-3) in an experimental plant-ing at Cornell AgriTech in Geneva, NY.

Photo by T.im Martinson

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Fruit Composition Report - 8/31/2020 Samples were collected on Monday, August 31, and include yeast assimilable nitrogen (YAN). YAN mea-surements will be taken every two weeks. Next samples will be collected on Tuesday, September 8. Baco Noir

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Hudson Valley 8/31/2020 SW HV 0.95 18.8 3.12 13.4 214Prev. sample 8/25/2020 SW HV 0.80 17.8 2.96 16.6’19 Sample 9/3/2019 SW HV 1.09 19.2 3.14 14.0

Cabernet FrancRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 E. Seneca 1.23 16.7 2.83 12.4 21Finger Lakes 8/31/2020 W. Seneca 1.14 15.0 2.69 16.6 30Finger Lakes 8/31/2020 Cayuga 1.23 14.7 2.79 14.5 36Finger Lakes 8/31/2020 Dresden 1.12 15.7 2.82 13.6 11Finger Lakes 8/31/2020 Lansing 1.01 15.4 2.72 16.2 30Finger Lakes 8/31/2020 Keuka 1.10 14.5 2.65 17.4 26

Hudson Valley 8/31/2020 SW HV 0.99 15.7 2.91 12.0 98Hudson Valley 8/31/2020 Central HV 1.32 12.0 2.97 11.4 74

Lake Erie 8/31/2020 Portland 1.20 9.7 2.69 24.9 155Long Island 8/31/2020 LI-05 1.63 15.4 3.01 10.5 64Long Island 8/31/2020 LI-09 1.26 12.9 3.01 12.6 149

Niagara County 8/31/2020 Niagara County 1.27 14.7 2.83 16.4 19Average 8/31/2020 1.21 14.4 2.83 14.9 59

Prev Sample 8/25/2020 1.07 11.4 2.68 21.6‘19 Average 9/3/2019 1.23 12.8 2.84 19.4 62

CatawbaRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Keuka 2.00 12.1 2.49 23.7 38Prev Sample 8/25/2020 Keuka 1.71 8.9 2.41 >30‘19 Sample 9/3/2019 Keuka 1.99 6.9 2.45 >30

Cayuga WhiteRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Keuka 2.82 14.6 2.92 11.0 183Finger Lakes 8/31/2020 Cayuga 2.60 14.4 3.08 9.3 240Finger Lakes 8/31/2020 Dresden 2.53 15.9 2.95 9.4 114Finger Lakes 8/31/2020 Ithaca 2.17 14.2 2.70 15.6 88

Average 8/31/2020 2.53 14.8 2.91 11.3 156Prev Sample 8/25/2020 2.32 13.7 2.85 14.7‘19 Sample 9/3/2019 2.66 14.3 2.73 14.8 113

ChardonnayRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Cayuga 1.28 14.9 2.85 12.0 86Finger Lakes 8/31/2020 W. Seneca 1.45 17.4 2.96 12.2 113Finger Lakes 8/31/2020 Dresden 1.36 18.1 2.87 8.9 55Finger Lakes 8/31/2020 Lansing 1.23 18.4 3.07 8.5 95Long Island 8/31/2020 LI-03 1.73 16.0 3.07 10.7 226

Niagara County 8/31/2020 Niagara County 1.29 17.6 2.97 11.5 74Average 8/31/2020 1.39 17.1 2.97 10.6 108

Prev sample 8/25/2020 1.26 15.1 2.90 13.5‘19 Sample 9/3/2019 1.41 14.1 2.90 15.2 128

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ConcordRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Keuka 2.69 12.9 2.87 10.2 84Finger Lakes 8/31/2020 W. Canandaigua 2.66 12.1 2.79 12.3 122

Lake Erie 8/31/2020 Portland 2.64 12.1 2.88 13.8 212Average 8/31/2020 2.66 12.4 2.85 12.1 139

Prev. Sample 8/25/2020 2.27 10.3 2.63 19.4‘19 Sample 9/3/2019 2.50 9.8 2.72 20.4 114

Frontenac Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Champlain Valley 8/31/2020 S Champ. 1.30 20.0 2.85 18.5 250Hudson Valley 8/31/2020 NE HV 1.03 20.8 3.09 13.9 278

Lake Erie 8/31/2020 Sheridan 1.12 17.1 3.02 19.8 444Average 8/31/2020 1.15 19.3 2.99 17.4 324

Prev Sample 8/25/2020 1.22 17.2 2.89 20.8‘19 Sample 9/3/2019 Sheridan 1.18 16.6 3.06 22.7 469

Frontenac GrisRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Champlain Valley 8/31/2020 S Champ. 1.32 18.5 2.80 18.6 231Prev Sample 8/25/2020 1.37 17.2 2.78 20.2‘19 Sample 9/3/2019 Champlain Valley 1.10 15.8 2.85 22.4 166

Gruner VeltlinerRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Dresden 1.28 18.3 2.93 8.1 80Previous Sample 8/25/2020 Dresden 1.08 16.3 2.73 12.8

‘19 Sample 9/3/2019 Dresden 1.26 13.9 2.81 11.5 41

La CrescentRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Champlain Valley 8/31/2020 Central Champ. 1.40 19.9 2.78 16.3 39Champlain Valley 8/31/2020 Northern Champ. 1.37 18.8 3.02 14.2 257

Finger Lakes 8/31/2020 Geneva 1.36 23.9 2.92 16.8 107Hudson Valley 8/31/2020 NW HV 1.50 21.9 2.85 15.6 90

Average 8/31/2020 1.40 21.1 2.89 15.7 123Previous Sample 8/25/2020 1.27 19.5 2.90 16.8

‘19 Sample 9/3/2019 1.12 17.1 2.87 17.6 68

LembergerRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Dresden 1.50 18.3 2.86 10.5 97Finger Lakes 8/31/2020 Wayne County 1.98 18.0 2.97 10.8 236

Average 8/31/2020 1.74 18.2 2.92 10.7 166Previous sample 8/25/2020 1.61 16.0 2.84 14.2

‘19 Sample 9/3/2019 1.40 15.4 2.76 15.4 107

MalbecRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Long Island 8/31/2020 LI-06 1.98 15.0 2.93 14.0 154Previous sample 8/25/2020 LI-06 1.74 12.0 2.81 22.0

‘19 Sample 9/3/2019 2.10 15.6 3.11 14.5 170

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Marechal FochRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Hudson Valley 8/31/2020 NE HV 1.20 20.4 3.18 9.6 145Prev Sample N/A

MarquetteRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Champlain Valley 8/31/2020 Central Champ. 1.50 20.2 2.78 17.1 88Champlain Valley 8/31/2020 Northern Champ. 1.46 20.0 2.92 15.1 262

Finger Lakes 8/31/2020 Dresden 1.26 23.1 2.88 13.0 151Finger Lakes 8/31/2020 Ithaca 0.97 16.3 2.80 17.2 132Finger Lakes 8/31/2020 Tones 1.31 20.7 2.93 14.2 316

Hudson Valley 8/31/2020 NE HV 1.38 21.9 3.24 11.7 292Hudson Valley 8/31/2020 NW HV 1.52 18.7 2.93 15.7 389

Lake Erie 8/31/2020 Fredonia 1.33 19.8 3.10 12.2 356Average 8/31/2020 1.34 20.1 2.95 14.5 248

Prev Sample 8/25/2020 1.30 18.6 2.86 16.9‘19 Sample 9/3/2019 1.23 17.1 2.90 17.3 214

MerlotRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Hudson Valley 8/31/2020 Central HV 1.29 15.5 3.34 8.1 109Long Island 8/31/2020 LI-04 1.89 15.8 3.12 9.2 116Long Island 8/31/2020 LI-10 1.54 14.5 3.19 8.4 181

Niagara County 8/31/2020 Niagara County 1.48 17.4 2.94 11.5 57Average 8/31/2020 1.55 15.8 3.15 9.3 116

Prev sample 8/25/2020 1.34 12.1 3.01 13.1‘19 Sample 9/3/2019 1.65 16.6 3.21 10.1 89

NiagaraRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Lake Erie 8/31/2020 Portland 3.17 11.7 2.93 9.7 121Prev Sample 8/25/2020 Portland 2.95 10.8 2.78 12.5‘19 Sample 9/3/2019 Portland 3.58 12.3 2.91 12.3 101

NoiretRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Lake Erie 8/31/2020 Sheridan 1.53 14.2 2.98 14.8 326Prev Sample 8/25/2020 Sheridan 1.34 12.2 2.79 19.2‘19 Sample 9/3/2019 Sheridan 1.47 15.1 3.00 17.8 242

Pinot NoirRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 W. Cayuga 1.21 15.0 3.01 9.2 84Finger Lakes 8/31/2020 Ontario 1.54 18.1 3.00 9.5 100

Hudson Valley 8/31/2020 SW HV 1.08 17.2 3.36 7.2 338Hudson Valley 8/31/2020 Central HV 1.26 16.4 3.51 7.6 146

Niagara County 8/31/2020 Niagara County 1.06 16.8 3.05 9.1 96Average 8/31/2020 1.23 16.7 3.19 8.5 153

Prev sample 8/25/2020 1.05 14.7 3.06 11.1‘19 Sample 9/3/2019 1.08 15.3 3.07 14.4 231

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RegentRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 1.48 17.7 2.95 8.4 215Prev sample 8/25/2020 1.39 16.5 2.93 10.4‘19 Sample 9/3/2019 TDV 1.62 19.3 3.15 10.0 63

RieslingRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 W. Seneca 1.27 15.1 2.68 17.2 67Finger Lakes 8/31/2020 E. Seneca 1.23 12.6 2.74 16.3 131Finger Lakes 8/31/2020 CL 90 Cayuga 1.21 13.8 2.76 16.3 178Finger Lakes 8/31/2020 Keuka 1.04 15.3 2.73 15.6 70Finger Lakes 8/31/2020 W. Canandaigua 1.16 13.0 2.68 19.3 125Finger Lakes 8/31/2020 Dresden 1.04 14.2 2.65 14.9 72Finger Lakes 8/31/2020 Clone 90 1.30 18.7 2.82 12.1 42Finger Lakes 8/31/2020 Clone 239 1.20 16.8 2.85 12.8 100Finger Lakes 8/31/2020 Clone 198 1.31 17.6 2.83 12.2 78Finger Lakes 8/31/2020 Wayne County 1.18 13.3 2.71 18.9 210Finger Lakes 8/31/2020 Lansing 0.94 14.8 2.66 16.8 47

Hudson Valley 8/31/2020 SW HV 1.31 15.3 2.97 10.3 101Hudson Valley 8/31/2020 Central HV 1.13 14.0 2.94 12.0 154

Lake Erie 8/31/2020 Portland 1.47 13.6 2.85 15.6 194Long Island 8/31/2020 LI-01 1.12 10.0 3.06 13.7 218

Average 8/31/2020 1.19 14.5 2.80 14.9 119Prev Sample 8/25/2020 0.99 12.2 2.71 20.8‘19 Sample 9/3/2019 1.19 12.4 2.81 20.0 119

Sauvignon BlancRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Long Island 8/31/2020 LI-02 1.14 14.5 3.03 12.0 166Prev Sample 8/25/2020 LI-02 1.05 11.6 2.89 18.2‘19 Sample 9/3/2019 1.47 17.1 3.34 10.0 190

Seyval BlancRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Cayuga 1.23 16.5 2.97 9.2 149Hudson Valley 8/31/2020 SW HV 1.83 19.0 3.04 8.0 97

Lake Erie 8/31/2020 Portland 1.57 16.3 2.95 10.9 182Average 8/31/2020 1.54 17.3 2.99 9.4 143

Prev Sample 8/25/2020 1.58 16.3 2.90 11.8‘19 Sample 9/3/2019 1.78 16.3 3.00 11.5 130

St CroixRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Geneva 1.72 19.5 3.07 8.8 161Prev Sample 8/25/2020 Geneva 1.57 17.9 3.06 10.7‘19 Sample 9/3/2019 Geneva 1.80 15.2 2.92 12.6 142

TraminetteRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Lake Erie 8/31/2020 Portland 1.40 12.0 2.73 16.0 94Average 8/31/2020 1.40 12.0 2.73 16.0 94

Prev Sample 8/25/2020 Portland 1.32 11.7 2.62 21.5‘19 Sample 9/3/2019 1.41 11.7 2.60 25.2 83

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Vidal BlancRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 Dresden 1.50 14.7 2.84 12.7 64Prev Sample 8/25/2020 Dresden 1.18 13.2 2.75 19.1‘19 Sample 9/3/2019 Dresden 1.32 11.5 2.73 20.3 104

VignolesRegion Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)

Finger Lakes 8/31/2020 VSP Keuka 1.67 18.2 2.80 16.4 165Finger Lakes 8/31/2020 R53V30 1.53 18.5 2.82 16.5 286

Lake Erie 8/31/2020 Portland 1.82 17.6 2.88 19.3 371Average 8/31/2020 1.68 18.1 2.83 17.4 274

Prev Sample 8/25/2020 Portland 1.75 16.4 2.79 20.7‘19 Sample 9/3/2019 1.54 15.5 2.79 22.0 237

Tasting Rooms adapt to COVID-19

An astute observer driving around the Finger Lakes (or presumably other regions where there are wineries or craft breweries) will note that there are many outdoor tents set up to ac-comodate outdoor tasting, food service, and social distancing - all new requirements.

The tents are one among many adjustments wineries have had to make to their business plans in the wake of COVID-19.

Tent set up at Lucas Vineyards, Interlaken, NY.Figure by Tim Martinson

This newsletter was made possible with support from the New York Wine and Grape Foundation, Constellation Brands, and USDA Federal Formula funding through the Cornell and New York State Agricultural Experiment Stations.

Veraison to Harvest is a joint publication of:

Cornell Enology Extension ProgramStatewide Viticulture Extension ProgramLong Island Grape Program - Suffolk CCE

Finger Lakes Grape ProgramLake Erie Regional Grape Program

Eastern NY Commercial Horticulture ProgramCopyright 2020 © Cornell University

The information, including any advice or recommendations, contained herein is based upon the research and experience of Cornell Cooperative Extension personnel. While this information constitutes the best judgement/opinion of such personnel at the time issued, neither Cornell Coopera-tive Extension nor any representative thereof makes any representation or warrantee, express or implied, of any particular result or application of such information, or regarding any product. Users of any product are encouraged to read and follow product-labeling instructions and check with the manufacturer or supplier for updated information. Nothing contained in this information should be interpreted as an endorsement expressed or implied of any particular product.