I have two honey locusts. Today one of them spontaneously shed one of its largest limbs. Split down the middle about two feet from the trunk. Termites were pouring out of a hole the size of my thumb in the center of the branch.
But here's the strange part...
First, the trees are outwardly healthy. About 35 yrs old. Not in an ideal location, being between the curb and the street, but otherwise appearing fine in all respects. Second, when I trimmed the branch back to the trunk there was no sign of ground-up infestation. Unblemished, healthy wood. The critters seem to have entered through the bark as there were several borer-like holes drooling sap near the infested area.
Unfortunately it looks like the companion tree about 15" away is also affected. I pulled several chunks of loose bark and discovered the little nasties there, too.
Our area isn't prone to termites. Sandy soils that drain well, low humidity, semi-arid, lots of direct sunlight, etc. etc.. Most termite infestations 'round here are directly attributable to untreated lumber in contact with soild that remains damp. Stack of old fence pickets are a common location. Dripping faucets on the shady side of a house are also a sure draw. Otherwise it's relatively rare to have a termite problem. This is the first time I've ever encountered termitrs in a healthy tree.
The tree really, really need to be gone. Their location is poor and the roots are beginning to lift the sidewalk. Unfortunately I don't currently have the $800 necessary to have them properly removed. Is there something I can hit them with, short of napalm or detcord, that'll keep critters at bay for a while?
Brad