Q: I pruned my Muscadine grape vines and the sap from the stems is running and it won’t stop. Should I paint the stems with something?
A: The best time to prune muscadine grape vines in Florida is mid-January through mid-March. Touch-up pruning can be done throughout the year and of course removal of broken or dead limbs can be perfomed at any time. It is common for the stems to bleed after pruning but research has not shown this to cause any permanent injury to the plants nor does it appear to reduce the ability of the vine to produce grapes. There is no need to paint the cuts with any time of sealant. In fact, current research indicates there is no benefit to using pruning paint to cover pruning cuts on any tree, shrub or vine. For more information on selection of Muscadine grape varieties and general care please read the University of Florida attached publication titled “The Muscadine Grape”: http://edis.ifas.ufl.edu/pdffiles/HS/HS10000.pdf