[Arid_gardener] Re: Small Grapes

[Olin Miller]

Try using gibberellic acid.  It is a plant growth regulator used in
commercial grape production and is sometimes available in to home gardeners
at garden centers (Baker Nursery, Berridge Nursery, Gardener's World) in
diluted, small quantities.   According to an out-of-print Coop Ext Pub
(MC-59), GA is applied by spraying the bunches in two applications - the
first application at the last blooming stage and a 2nd one week after.

Olin Miller, Master Gardener Volunteer
U of A Cooperative Extension, Maricopa County AZ
===================================

----- Original Message ----- 
From: <nbibler at msn.com>
To: <arid_gardener at Ag.arizona.edu>
Sent: Wednesday, June 20, 2007 8:01 AM
Subject: [Arid_gardener] Question from Home-Hort WWW page


> Neil
> 85044
> nbibler at msn.com
>
> I have mature Thompson seedless grapevines that produce nicely except that
> the grapes themselves always are small, about the size of English peas _
> or the nail of a little finger at best. What can I do to produce larger
> grapes?