Orange trunk is oozing - what is it?
I have this Valencia Orange for 2,5 years. All this time it has been planted outside. It has survived 2 crazy florida winters with just some leaf drop and produced about a dozen of good tasting oranges. But about 3 weeks ago I noticed a small drop of ooze on the trunk, a little below the grafting line and now it has increased a lot and got me worried. The tree has dropped a lot of leaves, but what is left seems as normal foliage, just a little frost bitten . So what it is with the trunk? Please, advise.