enlarging size of grapes - Ask Extension
We have seedless grape vines in our backyard. They are reddish in color, small in size but very delicious. We think they maybe Somerset? We have had ...
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enlarging size of grapes #874600
Asked June 25, 2024, 10:47 AM EDT
We have seedless grape vines in our backyard. They are reddish in color, small in size but very delicious. We think they maybe Somerset? We have had them for approx. five years & they produce copious amts. of grapes. Last fall, I pruned them extensively, again there are lots of grapes forming. Does pruning help to increase the size of this type of grape? We purchased the grape plants from Thompsons Nursery in St. Joe, Mn. Would the use of Gibberellic Acid help? If so when and how much would I use? Would it be safe to use?
Stearns County Minnesota
Expert Response
Have you seen the following publication?
Although the information was prepared by a New Mexico grape specialist, the techniques mentioned can be employed in Minnesota too. It's ok to try them to see what happens.
As the publication notes, pruning to limit the crop load is the first step toward achieving your goal.
https://pubs.nmsu.edu/_h/H311/index.html
For practical Minnesota grape-growing advice, including the use of gibberellic acid, consider joining the Minnesota Grape Growers Association.
https://www.mngrapes.org/
Although the information was prepared by a New Mexico grape specialist, the techniques mentioned can be employed in Minnesota too. It's ok to try them to see what happens.
As the publication notes, pruning to limit the crop load is the first step toward achieving your goal.
https://pubs.nmsu.edu/_h/H311/index.html
For practical Minnesota grape-growing advice, including the use of gibberellic acid, consider joining the Minnesota Grape Growers Association.
https://www.mngrapes.org/
