Hi, Approximately two weeks ago I pruned our red oak to raise up the canopy. It recently has developed these pus-like wounds wherever I had cut a limb. The sap seeping down the trunk from these wounds is sticky, but doesn't have any odor. We planted this beautiful tree about 7 years ago and never had any problems with it (always pruning each year). I did spray the cuts with a black, tar-like protectant immediately after pruning. We live in the DFW, TX area.
Please help us save our tree.
I have great photos showing the problem, but can't seem to attach here. JC
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