Zinc is a difficult nutrient for plants to uptake through soil and foliar routes. In the canopy of 20’ tree, we covered a selected typical large branch of the tree with a large bag sealed at the branch base. Prior to covering, leaf tissue samples were taken of the entire tree which included the spray protected branch. A foliar nutrient solution which included zinc and featured OII-YS™ as the adjuvant was applied. The covered branch and leaves were protected from any contamination of the spray. 24 hours later, the bag was removed and leaf tissues were sampled from the treated and untreated portions. Test data revealed the same nutrient and zinc concentrations in the treated and untreated tissues. These results demonstrate the superior qualities of OII-YS™ as an adjuvant allowing the applied zinc adequate time to absorb for rapid distribution to the entire tree.
