ArborWell was here again this past Wednesday finishing the treatments to the remaining oaks. We had originally done only half due to the large cost and the fact that it wasn't a 100% guarantee. With new buds breaking on most of the browned out branches, I decided to go ahead and finish the treatments.
What Jay did for us was root inject a mix of biostimulants for general plant health and an insecticide for spider mites. He also drilled into the trunk and applied a fungicide for Coryneum which is known to cause a twig canker on oaks. The delivery method for the fungicide is really cool and also really safe. After drilling the holes, all Jay had to do was pop in the fungicide packs and let it flow in. It took 10-15 minutes for the fungicide to move in to the trunk.
In total, we sprayed 31Coast Live Oaks. The recent rains will only enhance the treatments as better uptake by the tree should occur.