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Around New York...Statewide (Tim Martinson)This week marks our final set of fruit composition samples (p. 5-8). All that’s left is Cabernet Franc (8 of 11 blocks sam-pled), Riesling (3 of 16 blocks), Concord (1 of 4), Traminette (2 of 2) and Vidal blanc (1 of 1). Last year we ran an ad-ditional week of samples on 10/23, but we expect that most of the remaining blocks will be harvested by next Monday.

In this week’s table, we have included the final numbers from 2017 (including the 10/23/17 sample) - the best esti-mate of fruit composition at harvest. This week’s most re-liable averages are from Cabernet Franc (8 blocks remain-ing), where soluble solids increase by 0.3 °Brix, and acids dropped by 0.5 g/l. For the 3 remaining Riesling blocks, soluble solids didn’t move much (+0.1 °Brix) but TA’s aver-aged 8 g/l. The one remaining Concord block (16.8 °Brix, 6.3 g/l TA) from Lake Erie has definitely exceeded processor standards, and may be representative of what processors are receiving at the tail end of the harvest.

Almost across the board, this looks like a ‘Low Brix, Low acid’ year. Again, the Cabernet Franc blocks average 2.1 °Brix lower than 2017, and acids are moderately lower (-0.5 g/L). For the rest of this week’s samples, its risky to infer averages when so many blocks are harvested, but Riesling is -2.5 °Brix behind 2017 – and most of the other varieties are showing lower brix (-0.5 to 2.5 °Brix) and lower acids (most hovering around -1 g/L compared to 2017). This trend seems particularly notable in the samples from Long Island where Merlot (-2.3 °Brix; -1.0 g/l), Malbec (-2.5 °Brix, -0.2 g/l), and Sauvignon blanc (-2.1 °Brix, +0.3 g/l) all show a 2°Brix+ deficit compared to 2017).

In a couple of weeks, look for our Final Harvest Issue, in-cluding Chris Gerling and Hans Walter-Peterson’s review of the growing season and vintage, Kevin Martin’s Concord and Niagara summary, and my five-year comparison of rip-ening trends for major varieties. Expect it in your e-mail box on November 9.

Finger Lakes (Hans Walter-Peterson)We’re in that time of the season where some growers and wineries have finished picking for the year, while others are still planning to harvest fruit for the next couple of weeks.

Statewide Vineyard Crop Development Update #8

October 19, 2018

Edited by Tim Martinson and Chris Gerling

Ve ́raison to HarVest

At this point, most of what is remaining hanging in vine-yards consists of some Riesling blocks that continue to hold up pretty well, red Bordeaux varieties like Cabernet Franc which have largely remained healthy despite the less-than-ideal weather this season, late season hybrids like Trami-nette and Vidal, and some Catawba blocks that may still be looking for a home.

Continued on page 2

Vidal blanc was harvested from the Finger Lakes Teaching & Demonstration Vineyard at Anthony Road vineyards this week. The teaching and demonstra-tion vineyard is a joint effort of the CCE Finger Lakes Grape Program and the Finger Lakes Community College’s viticulture training program.

Photo by Hans Walter-Peterson

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Earliest ripening: Marquette, just after Labor Day. Fruit was beginning to break down at that point.

Tightest cluster: Arneis with tiny berries and very tight clusters but little to no cluster rot, though the fruit was harvested on the early side of ripeness.

Sour rot champion: Tie – Sauvignon Blanc and the hybrid Petite Pearl. SB ripens early enough that it is smack in the middle of peak fruit fly season. Ditto for Petite Pearl, plus the birds hammer this variety.

Overall cluster breakdown/rot champion: Syrah. Nice fruit until the 3” rain last week.

Most surprising: Tie – Chardonnay and Pinot Gris. In a year where cluster rot was a challenge, these two va-rieties were relatively unscathed. There was a touch of botrytis/sour rot but far less than expected.

Annual headache: Downy mildew control. Historical-ly, some years were difficult and others were a breeze. Lately the seasons have been mostly difficult.

Most unusual: Malbec. A somewhat finicky variety, there was very little cluster rot and berry set was good. In some years, fruit set is a challenge though this may be related to clone (clones 4 & 6).

Poor set winner: Own-rooted Merlot was the definite winner with a fair number of clusters that had a full rachis with only 5-6 berries.

Most promising: Regent. Sprayed minimally, this dis-ease-resistant vinifera hybrid did get downy and pow-dery. That said, disease did not show up until mid-Oc-tober which was post-harvest. Jury is still out on fruit quality as the vines are only 2 yrs old.

Most aggravating: Tie – fruit fly situation and leaf roll virus. Fruit flies used to be an occasional thing; now they seem to be an annual thing. Leaf roll virus was very prominently expressed this season including in vines that had never expressed symptoms.

Tastiest fruit: Tie – Barbera and the table grape Jupiter. Barbera wins hands down. Delicious fruit every sea-son. Jupiter came as a surprise in a shipment of wine-

Based on some conversations with growers the past week, yields have been “average” for the most part this year. Given the large crop last year and the resulting wine that is taking up space in many cellars and ware-house, this could be considered a good thing, at least from an inventory management perspective.

Temperatures on Thursday morning danced around the freezing mark, ranging from 31 to 33°F, but it got cold enough that we had our first snowfall of the year. Overall, October has actually been drier than average up to this point (I know – pick your jaw up off the floor), and about normal with temperatures. Based on the last few weeks of sampling results, however, the vines don’t seem to be in much of a mood to add much more in the way of sugar into the berries.

While acidity levels may still drop a bit as respiration continues, it seems unlikely that there will be much in the way of significant changes in ripening status over the next couple of weeks due to the vines producing more sugar. From this point on, the bigger driver is likely to be dehydration. That isn’t to say that is nec-essarily a bad thing, but just an acknowledgement of where most vines stand physiologically at this point in the season.

Once again, the Finger Lakes has been reminded that ‘vintage variation’ is a very real thing, not only be-tween years, but even within a single growing season like this one. What started out seeming like a warm and dry year got flipped on its head about halfway through, and became a very different growing season than we thought we were going to have.

As always, the final word on the 2018 season won’t be known until the wines are in the bottle, but I’m sure most growers will be happy to wrap this season up and begin looking forward to next year.

Long Island (Alice Wise) Rather than recap the season’s weather and growing conditions, here are the Long Island research vine-yard’s 2018 highlights along with a few lowlights:

Most interesting: Petit Manseng. This variety has tasty fruit and no cluster rot thus far which is impressive given the late ripening (picked 10-18 but could have lasted a bit longer). It is used for dessert wines in Vir-ginia.

Uninvited visitor: cucumber beetles. The cucurbits on the LIHREC property were inundated and the beetles spilled over into the vineyard. They were not causing damage but were right in there with other insects feast-ing on damaged fruit. Hopefully this is an anomaly.

Most disappointing: Moscato Giallo. Vines are 6 yrs old and have never produced a decent crop. Vines don’t fill the trellis despite TLC. Fruit this year seemed to stop ripening and had an odd waxy appearance.

Alice Wise in her experimental vineyard at the Long Island Horti-cultural Research and Extension Center at Riverhead, NY.

Photo by Tim Martinson

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region of Italy. Monday in Barbaresco and Tuesday in Lequio Berria.

The fruit I was seeking was absent because the late season weather in Piedmont had been similar to what I left behind in eastern New York (cool, humid, and wet), preventing the Nebbiolo from hanging longer than ideal.

I am not writing this article to announce that Barbares-co has been added to the county roster for the East-ern New York Commercial Horticulture Program, al-though I would not contest such a decision.

These vineyard visits were for personal entertainment while on vacation in Italy visiting family. Nebbiolo wines have long been a personal favorite, along with white truffles (which are in season) and hazelnuts, so a few days in Piedmont was a no-brainer.

Does this mean that, for once this year, I am not going to write about Marquette? No. It does not.

Marquette has been well represented this year’s Verai-son to Harvest, having been discussed as a viable wine grape in all regions of eastern New York. But what makes Marquette particularly important to New York wine production is its ability (along with other cold hardy cultivars) to perform in regions where no vinif-era can survive winter.

Northern Italy, like eastern New York, has a wide range of mesoclimates and microclimates, although largely more maritime in nature and with more ex-treme mountainscapes. And Northern Italy, like east-ern New York, has regions which require cultivars that can withstand colder temperatures and shorter grow-ing seasons than those cultivars more widely known by casual wine drinkers.

Leaving Langhe Valley on Tuesday, traveling west on a road trip to Aosta Valley, was an experience reminis-cent of traveling between vineyards in lower Hudson

grapes. We elected to keep it and it has fast become a favorite of LIHREC staff.

Weirdest observation: On clone 4 Chardonnay, a handful of vines with substantial berry shrivel. There was no cluster rot and the rachis was green and intact.

Lake Erie (Tim Weigle) With harvest winding down and most varieties picked, there is not a lot to report on. Concord grapes that are still hanging are going through the yearly bout of dehydration, in spite of the heavy rain events we have had recently.

Late season grape berry moth is evident in most re-maining blocks no matter what their risk classification for grape berry moth damage. There has been more berry splitting and shelling this year as compared to the recent past. Mud has made harvest difficult in some of the more poorly-drained vineyards in the area.

It is nice to see that as AgriAmerica is bringing the old Cliffstar facility in Fredonia, NY back on line, the de-mand for Concords from the area seems to be rebound-ing. Traveling through the area it is not uncommon to see harvester operations in vineyards that appeared to be retired earlier in the season.

A common question heard this time of year is “How are the grapes doing?” The Lake Erie Regional Grape Program attempted to answer that question in our last two pod casts “Sights and Sounds of Concord Har-vest” and “Interview with Mark Amidon of National Grape” found on http://lergp.com/podcasts.

We continue to receive reports of Spotted Lanternfly sightings in New York State so you are urged to keep an eye out for adults and egg masses. Report any sightings by taking a photograph (if possible) and sending it to spottedlanternfly@dec.ny.gov

Hudson/Champlain (Jim Meyers)“Come, faeries, take me out of this dull house! Let me have all the freedom I have lost; Work when I will and idle when I will! Faeries, come take me out of this dull world, For I would ride with you upon the wind, Run on the top of the dishevelled tide, And dance upon the mountains like a flame.

I would take the world And break it into pieces in my hands To see you smile watching it crumble away. “

-- W.B. Yeats, The Land of Heart’s Desire

All of the vineyards that I visited on Monday and Tuesday this week had been harvested prior to arrival.

But had I been able to sample berries, overnight ship-ping to the lab would have been a problem because these were Langhe Valley vineyards in the Piedmont

Figure 1. A view from Saint Nicolas in Aosta Valley, ItalyPhoto by Jim Meyers

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Valley and Champlain Valley. As kilometers passed, temperatures became notably colder, influenced by in-creasingly continental geography and higher altitudes.

Unlike New York, many vineyards in Italy can be seen from the main highways—so it is easy to see how con-ditions and farming practices change over distance without the need for periodic local excursions.

The most obvious changes were in slope and scale. The already steep terraces characteristic of Langhe became increasingly extreme, while block sizes became small-er as suitable areas for planting became increasingly sparse. Steepening slopes and increasing mountain peak altitudes led to narrowing valleys with reduced daily sun exposure, directing plantings to alternate sides of winding channels in search of the sun.

Another difference between road tripping in Italy ver-sus New York is that local Italian markets heavily bias their produce and wine offerings toward local prod-ucts.

Thus, unlike the day before the trip, when I could choose among scores of Piedmont wines, my arrival in Saint Nicolas presented me with almost no Piedmont wines, but with a wide selection of local Aosta Valley wines -- most of which were not familiar to me.

A little research suggested that one red wine cultivar in particular, Fumin, was unique to the region so I picked one up (Figure 1) to take back to the house where it would be paired with other local ingredients. Ingredi-ents that eventually became a melange of roasted po-tatoes, mixed sausages and garlic cloves with ample rosemary.

Maybe it was the road trip from warmer toward cooler that preset my expectations, but the wine immediately reminded me of a cold climate New York wine -- dare I say, a Marquette? Clearly lower in alcohol and high-er in acid with atypical vinifera aromas and peppery notes. The wine paired very well with the meal, both enhancing the flavors of the dish and standing up to intense flavors -- as any respectable cool climate wine should do.

A cursory analysis of data pulled from a local Weather Underground station suggested that GDDs between likely budbreak and harvest dates this year were simi-lar, if slightly higher, to those in northern Hudson Val-ley vineyards. Although the coldest temperature event during the previous winter was 12F which, unlike the coldest events in the Hudson Valley, is high enough for vinifera winter survival.

One final point about the Fumin/Marquette connec-tion:

From what I could gather from informal online re-search, Fumin is a old regional cultivar that had fallen out of favor until about 25 years ago when some local growers decided that its potential as a great regional grape was worth an attempt at revival.

At the beginning of that 25 year period, published trade articles were polite, but talked about Fumin as a ‘harsh’ grape that can lead to challenging wines. A lo-cal French phrase (France is a stone’s throw to the west of Aosta), ventre de lièvre (“hare’s belly”), describes an aromatic quality of wet animal fur which has been as-sociated with Fumin.

Since that time, cultural practices and winemaking techniques have improved. Eric Asimov said some nic-er things about Fumin in 2013 (https://www.nytimes.com/2013/03/13/dining/reviews/the-wines-of-valle-daosta-treasures-of-the-alps.html) and Ian D’Agata even nicer things in 2018 (https://vinous.com/articles/les-cretes-fumin-1994-2015-sep-2018#).

Until very recently an ignored local cultivar, Fumin is now getting worldwide attention for its contributions in defining a regional cool climate wine identity.

Foreshadows, perhaps, of Marquette’s future.

Figure 2: Patate arrosto, salsiccia mista e spicchi d’aglio d’Aosta al rosmarino.

Photo by Jim Meyers

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Fruit Composition Report - 10/15/2018Samples reported here were collected on Monday 10/15. Where appropriate, sample data from 2017, averaged over all sites is included. Tables from 2017 are archived at http://grapesandwine.cals.cornell.edu/newsletters/veraison-harvest. This is our final sample - Data from the final (10/23/2017) sample of 2017 is included where appropriate.

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

Hudson Valley 9/10/2018 Southwest HV HARVESTFinal sample 9/10/2018 Southwest HV 1.18 18.4 3.38 11.0 418

’17 Final Sample 9/11/2017 1.61 16.9 2.78 15.4Cabernet Franc

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Hudson Valley 10/15/2018 Southwest HV HARVEST Finger Lakes 10/15/2018 E. Seneca 1.51 20.4 3.28 7.0 153Finger Lakes 10/15/2018 W. Seneca 1.45 20.8 3.32 6.1 142Finger Lakes 10/15/2018 Cayuga 1.78 19.2 3.26 7.0 182Finger Lakes 10/15/2018 Wayne County 1.54 20.4 3.29 6.2 229Finger Lakes 10/15/2018 Lansing 1.43 20.0 3.29 6.0 132Finger Lakes 10/15/2018 Keuka 1.51 19.5 3.34 5.8 60

Hudson Valley 10/15/2018 Southwest HV HARVEST Hudson Valley 10/15/2018 East Central HV HARVEST

Long Island 10/15/2018 LI-05 2.12 17.6 3.62 5.2 180Long Island 10/15/2018 LI-09 1.76 17.6 3.66 4.9 209

Average 10/15/2018 1.64 19.4 3.38 6.0 161Prev Sample 10/8/2018 1.63 19.1 3.40 6.6‘17 Average 10/16/2017 1.36 21.3 3.30 7.1

’17 Final Sample 10/23/2017 1.32 21.7 3.28 7.3 80

Catawba

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

Finger Lakes 10/15/2018 HARVEST’18 Final Sample 10/8/2018 Keuka 2.64 17.8 3.02 8.4‘17 Final Sample 10/16/2017 Keuka 3.15 16.1 2.97 8.4

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

Finger Lakes 10/8/2018 Dresden HARVESTFinger Lakes 10/8/2018 Keuka HARVESTFinger Lakes 9/17/2018 Cayuga HARVESTFinger Lakes 10/1/2018 Ithaca HARVEST

’18 Final Sample 10/8/2018 3.19 19.7 3.33 7.0‘17 Final Sample 10/2/2017 2.92 20.1 3.12 7.9 146

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

Finger Lakes 10/1/2018 Cayuga HARVEST Finger Lakes 10/8/2018 W. Seneca HARVEST Finger Lakes 10/1/2018 Lansing HARVEST Finger Lakes 9/24/2018 Dresden HARVEST

Lake Erie 10/15/2018 HARVEST Long Island 1015/2018 LI-03 HARVEST

’18 Final sample 10/8/2018 1.77 19.1 3.45 7.1 ‘17 Final Sample 10/2/2017 1.62 19.7 3.12 9.2 199

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

Finger Lakes 10/8/2018 Keuka HARVEST Finger Lakes 10/8/2018 W. Canandaigua HARVEST

Lake Erie 10/15/2018 Fredonia 2.77 16.8 3.10 6.4 181Lake Erie 10/8/2018 Portland HARVEST

Average 10/15/2018 2.77 16.8 3.10 6.4 181Prev. Sample 10/8/2018 3.00 16.4 3.15 10.1 ‘17 Sample 10/16/17 3.50 16.7 3.36 5.0

’17 Final Sample 10/23/2017 3.59 17.0 3.33 5.8Corot Noir

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Finger Lakes 10/15/2018 HARVEST

’18 Final Sample 10/8/2018 Dresden 2.44 18.8 3.33 6.3‘17 Sample 10/16/2017 2.47 17.9 3.23 6.8

’17 Final Sample 10/23/2017 2.55 18.7 3.21 6.9 88Frontenac

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Champlain Valley 9/24/2018 Central Champlain HARVEST

Hudson Valley 10/1/2018 Northeast HV HARVEST Champlain Valley 10/8/2018 Cent Champlain (gris) HARVEST’18 Final Sample 10/1/2018 1.21 24.0 3.08 12.6 194‘17 Final Sample 9/25/2017 1.21 22.4 3.31 9.7

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

Finger Lakes 9/24/2018 Dresden HARVEST Finger LakesFinal Sample 9/17/2018 Dresden 1.79 20.3 3.33 5.5 133

‘17 Final Sample 9/25/2017 Dresden 1.65 17.8 3.11 6.9 La Crescent

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Champlain Valley 9/10/2018 Central Champlain HARVEST Champlain Valley 9/24/2018 ‘Northern Champlain HARVEST

Finger Lakes 9/24/2018 Geneva HARVEST Hudson Valley 9/24/2018 Northwest HV HARVEST Final Sample 9/17/2018 1.17 23.6 2.99 13.7 84

‘17 Final Sample 10/2/2017 1.45 24.8 3.08 13.5 105

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

Finger Lakes 10/8/2018 Keuka HARVESTFinger Lakes 10/8/2018 Dresden HARVEST

’18 Final sample 10/1/2018 2.01 20.3 3.21 7.6 143‘17 Final Sample 10/9/2017 2.09 20.5 3.13 8.5 112

Malbec

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

Long Island 10/15/2018 LI-06 2.33 18.7 3.74 6.1 307Prev. sample 10/8/2018 LI-06 2.32 18.6 3.72 6.9

’17 Final Sample 10/16/2017 LI-06 2.10 21.1 3.61 7.1

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

Hudson Valley 9/24/2018 Northeast HV HARVEST ’18 Final sample 9/17/2018 Northeast HV 1.39 22.7 3.50 10.8 204‘17 Final Sample 10/2/2017 Northeast HV 0.86 23.0 3.32 9.0 160

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

Champlain Valley 10/8/2018 Northern Champlain HARVESTChamplain Valley 9/24/2018 Central Champlain HARVEST

Finger Lakes 9/24/2018 Dresden HARVEST Finger Lakes 9/24/2018 West Keuka HARVEST

Hudson Valley 10/8/2018 Northwest HV HARVESTHudson Valley 9/24/2018 Northeast HV HARVEST Hudson Valley 9/10/2018 Northeast HV HARVEST

Lake Erie 9/17/2018 Fredonia HARVEST ’18 Final Sample 10/1/2018 1.48 22.9 3.15 11.4 226‘17 Final Sample 10/2/2017 1.38 23.8 3.05 12.2 286

Merlot

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

Hudson Valley 10/15/2018 East Central HV HARVESTLong Island 10/15/2018 LI-04 1.92 18.2 3.78 5.0 206Long Island 10/1/2018 LI-10 HARVEST

Average 10/15/2018 1.92 18.2 3.78 5.0 206Prev sample 10/8/2018 1.72 17.5 3.56 7.2

‘17 Final Sample 10/16/17 2.00 20.5 3.66 6.0Niagara

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Lake Erie 9/24/2018 Portland HARVEST

’18 Final Sample 9/17/2018 Portland 3.60 14.2 3.21 7.5 210‘17 Final Sample 9/11/2017 Portland 3.35 14.2 3.15 6.1 Lake Erie

Pinot Noir

Region Harvest Date Description Ber. Wt.

g. % Brix pH TA g/L YAN (ppm)Finger Lakes 10/1/2018 W. Cayuga HARVEST Finger Lakes 9/24/2018 E. Seneca HARVEST Finger Lakes 10/1/2018 Ontario HARVEST

Hudson Valley 10/15/2018 East Central HV HARVEST Hudson Valley 9/24/2018 Southwest HV HARVEST

’18 Final Sample 10/8/2018 1.22 19.2 3.80 8.0 ‘17 Final Sample 10/2/2017 1.44 20.5 3.25 7.6 79

Riesling

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Finger Lakes 10/15/2018 W. Seneca HARVEST Finger Lakes 10/15/2018 E. Seneca 1.70 17.5 3.16 8.9 151Finger Lakes 10/15/2018 CL 90 Cayuga HARVEST Finger Lakes 10/15/2018 Keuka HARVEST Finger Lakes 10/8/2018 W. Canandaigua HARVEST Finger Lakes 10/8/2018 Dresden HARVEST Finger Lakes 10/15/2018 Cl 90, E. Seneca HARVEST

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Finger Lakes 10/15/2018 Cl 239, E. Seneca HARVEST Finger Lakes 10/8/2018 Cl 198, E. Seneca HARVEST Finger Lakes 10/15/2018 Wayne County 1.74 16.5 3.16 8.0 217Finger Lakes 10/15/2018 Lansing 1.56 18.1 3.16 7.0 114

Hudson Valley 10/15/2018 Southwest HV HARVEST Hudson Valley 10/15/2018 East Central HV HARVEST Hudson Valley 10/8/2018 East Central HV HARVEST

Lake Erie 10/8/2018 Portland HARVEST Long Island 10/8/2018 LI-01 HARVEST

Average 10/15/2018 1.66 17.4 3.16 8.0 161Prev Sample 10/8/2018 1.56 17.3 3.10 8.8 ‘17 Sample 10/16/17 1.69 18.8 3.08 9.0

’17 Final Sample 10/23/2017 1.64 19.9 3.08 8.7 86Sauvignon Blanc

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Long Island 9/24/2018 LI-02 HARVEST

Final Sample 9/17/2018 LI-02 1.59 17.6 3.37 8.9 122‘17 Final Sample 9/18/2017 LI-02 1.68 19.7 3.29 8.6 198

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

Finger Lakes 9/10/2018 Cayuga HARVEST Hudson Valley 9/10/2018 Southwest HV HARVEST

Lake Erie 9/10/2018 Portland HARVEST Final Sample 9/10/2018 1.81 17.3 3.22 7.1

‘17 Final Sample 9/18/2017 1.69 19.5 3.15 8.1 137

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

Hudson Valley 9/24/2018 Block B E Central HV HARVEST Hudson Valley 9/24/2018 Block A E Central HV HARVEST

’18 Final Sample 9/24/2018 1.65 17.3 3.44 6.4 Traminette

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Finger Lakes 10/15/2018 Keuka 1.79 17.7 3.02 9.9 192Finger Lakes 10/15/2018 Ithaca 2.13 19.5 3.07 9.3 175

Average 10/15/2018 1.96 18.6 3.05 9.6 183Prev Sample 10/8/2018 1.88 18.0 3.04 9.8‘17 Sample 10/16/17 2.05 21.6 3.00 9.2

’17 Final Sample 10/23/2017 1.99 22.5 2.98 9.6 114

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

Finger Lakes 10/15/2018 Dresden 1.95 22.4 3.22 8.0 118Prev Sample 10/8/2018 Dresden 2.02 21.8 3.27 7.5

‘17 Final Sample 10/16/2017 Dresden 2.11 20.0 3.15 9.9Vignoles

Region Harvest Date Description Ber. Wt. g. % Brix pH TA g/L YAN (ppm)Finger Lakes 9/24/2018 VSP Keuka HARVEST Finger Lakes 9/24/2018 W. Seneca HARVEST Finger Lakes 9/24/2018 R59V25 HARVEST

Lake Erie 9/24/2018 R59V25 HARVEST Final Sample 9/17/2018 1.30 23.2 3.22 12.7 288

‘17 Final Sample 9/25/2017 1.67 22.8 2.92 19.9

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Correction - Leaf Wetness Hours in October on Long IslandTim Martinson

In Veraison to Harvest #7 last week, I posted weather data from Long Island and Geneva - to support the argument that warm night temperatures and extended leaf wetness hours were factors contributing to the higher-than-average sour rot levels seen this year. I remarked that it was surprising to see 23-24 hours leaf wetness on Long Island at the Riv-erhead station. It turns out that I was reporting data from a faulty leaf wetness sensor (figure at left). I pulled data from a different nearby weather station on the North Fork (at right), which tells a different and more believable story.In fact: There were far more episodes of extended leaf wetness in the Finger Lakes (8 of 11 days) than on long Island (4 of 11 days > 6 h leaf wetness). And I would wager there is less sour rot on Long Island than in the Finger Lakes.

- Tim Martinson

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 Cooperative 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.

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 Program

Statewide Viticulture Extension ProgramLong Island Grape Program - Suffolk CCE

Finger Lakes Grape ProgramLake Erie Regional Grape Program

Eastern NY Commercial Horticulture ProgramCopyright 2018© Cornell University

Incorrect Correct