How to girdle & kill a tree?
I girdled 6 large honey locust trees last Feb 12th hoping to kill them because I need more sunlight on my garden. 15-18" diameter trunks and I chainsawed through the bark completely around them.
Today I discovered they are leafing out just like the locusts that I didn't girdle. What did I do wrong and how do I kill them now? Cutting them completely down is out of the question until next winter.
The cuts I made are completely through the bark and into the white of the wood. I rather expected to see sap oozing out of the cuts, but there is none.