General Information

Do not apply this product through any type of irrigation system.

NOTE: Gibberellic Acid is an extremely potent plant growth regulator. For best results, read all directions for use thoroughly. Consult your local experiment station specialist, distributor, or the Nufarm agricultural specialist in your area for the spray schedule best suited to your conditions.

Discard any unused spray material at the end of each day. Prepare solution concentrations by mixing the required amount of product with water only in a clean, empty spray tank. Refer to individual crop sections and rate conversion tables provided in the labeling for the amount of GibGro to be applied.

Use only as directed. The label should be read thoroughly and understood before making applications.

Effectiveness requires that all parts of plant or crop must receive spray or desired result will not occur, so spray thoroughly. When a range of rates is indicated, use the concentration and spray volume recommended locally.

Data concerning the compatibility of GibGro with other agricultural compounds is not available, except where specified.

Refer to the label regarding tank mix information.

Limitations, Restrictions, and Exceptions


(All states except California) To stimulate fruit set during periods of extended cool temperatures:

Make one application prior to bloom and two additional applications at 10 to 14 day intervals following fruit set on cantaloupes and watermelons. For cucumbers, as many as four applications may be required after fruit set.

Ensure thorough coverage of the exposed foliage by using adequate spray volume. In order to obtain maximum benefit from GibGro, the vines must be in good condition except for a reduced growth rate due to cool temperatures.

Restricted Entry Interval

4 hours