Cultivar |
Phomopsis cane blight |
Black rot |
Downy mildew |
Powdery mildew |
Botrytis bunch rot |
Phytotoxic chemical sensitivity |
Vinifera wineA |
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Auxerrois |
MS | MS | MS | HS | HS |
— |
Cabernet Franc |
MS | HS | MS | HS | SS |
— |
Cabernet Sauvignon |
MS | HS | MS | HS | SS |
— |
Chardonnay |
MS | HS | ES | ES | HS |
— |
Gamay |
SS | MS | MS | HS | MS |
— |
Gewurztraminer |
SS | HS | MS | HS | HS |
— |
Merlot |
SS | HS | MS | HS | MS | 2 |
Pinot Blanc |
UN | HS | MS | HS | HS |
— |
Pinot Gris |
SS | HS | MS | HS | HS |
— |
Pinot Noir | SS | HS | MS | HS | HS |
— |
Riesling | SS | HS | MS | HS | HS |
— |
Sauvignon Blanc | SS | MS | MS | MS | HS |
— |
Syrah/Shiraz | MS | HS | GS | HS | MS |
— |
Zweigeltrebe |
MS | HS | MS | HS | SS |
— |
French hybrid wine |
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Baco Noir |
MS | SS | SS | MS | HS | 1 |
Chambourcin |
SS | MS | MS | MS | SS | 1 |
De Chaunac |
HS | SS | SS | MS | SS | 1 |
Marechal Foch |
MS | SS | SS | MS | SS | 1 |
Seyval Blanc |
MS | MS | MS | HS | HS |
— |
S.V. 23-512 |
SS | SS | MS | MS | SS |
— |
Vidal 256 |
SS | SS | MS | MS | HS | 2 |
American hybrid wineB |
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Frontenac |
SS |
MS (L) / HS (F) |
SS (L) / R (F) |
MS | SS |
2† |
Frontenac gris |
SS |
MS (L) / HS (F) |
SS (L) / R (F) |
MS | SS |
2† |
Geneva Red | SS | SS | MS | MS | MS | — |
La Crescent |
SS |
SS (L) / R (F) |
HS (L) / R (F) |
SS | SS |
1† |
Marquette |
SS |
MS (L) / HS (F) |
SS (L) / R (F) |
HS | SS | 2† |
St. Croix |
HS |
SS (L) / SS (F) |
HS (L) / R (F) |
SS | SS |
1, 2† |
Juice and table grapesC |
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Concord |
MS |
MS |
MS |
MS |
SS |
1,2,3,4 |
Elvira |
HS |
MS |
SS |
MS |
MS |
3 |
Fredonia |
MS |
MS |
HS |
MS |
SS |
3 |
Himrod |
SS |
MS |
SS |
MS |
MS |
— |
Niagara |
MS |
HS |
HS |
MS |
SS |
2 |
N.Y. Muscat |
SS |
SS |
SS |
MS |
SS |
— |
Sovereign Coronation |
SS |
SS |
HS |
HS |
MS |
3 |
UN = Relative susceptibility is unknown. R = Resistant. SS = Slightly susceptible. MS = Moderately susceptible. HS = Highly susceptible. ES = Extremely susceptible. L = Leaves. F = Fruit.
A Vinifera varieties not included in this chart are considered susceptible to powdery mildew, downy mildew and black rot.
B Based on ratings from https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-01-17-0022-RE.
C All juice and table varieties are labrusca species with exception of Himrod (American hybrid).
1 = Sulphur-sensitive. 2 = Copper-sensitive. 3 = Flint- and Pristine-sensitive. 4 = Inspire Super-sensitive. — = No chemical sensitivity has been observed. † No more than 2 apps/season