Question:
Are any grape cultivars resistant to 2,4-D herbicide damage?Answer:
Grapes are highly susceptible to damage from herbicide drift, in particular from 2,4-D and other chemically similar herbicides. Depending on weather conditions, 2,4-D herbicides can potentially affect grapes up to 2 miles from the application site.
2,4‑D injury on grapes typically appears as severely cupped, strappy, or elongated leaves. New growth may be twisted or distorted, and affected vines often show poor fruit set and reduced vigor later in the season.
While no grape cultivars are resistant to 2,4-D herbicide damage, a few cultivars are less susceptible to damage. If you live in an area prone to herbicide drift (near agricultural fields, for example), these cultivars may be less likely to experience damage from 2,4-D herbicides in Iowa.
Hardy to USDA Hardiness Zone 4 or colder
- Frontenac (Blue, Black)
- Frontenac Gris (Gray)
- Geneva Red (Blue, Black)
- Leon Millot (Blue, Black)
- Steuben (Blue, Black)
Hardy to USDA Hardiness Zone 5
- Cayuga White (White)
- Jupiter (Blue, Black)
- Marquis (White)
- Mars (Blue, Black)
- Reliance (Red)
- Vanessa (Red)
- Vignoles (White)