I learned in class that Gibberlic Acid GA3, might be possible to enlarge the...
I learned in class that Gibberlic Acid GA3, might be possible to enlarge the fruiting body of grapes; I found a product on Amazon, which is pure GA3 Can i apply this directly to the grapes, If so how and how much?
Laramie County Wyoming
There is a very good series of articles on this subject online within eXtension. Here is the link:
The article discusses when to apply and how much.
Thank you for the article! I have now small grape clusters, but not mature.
In your processional opinion, would you still apply the GA3?
I would not apply it now. GA should be applied during bloom, prior to fruit set.