I have a few willows in trouble. To begin with I have a few young ones an inch to an inch and a half diameter with a soft woody growth at the bottom. It is bulbous and when I poke it and gently turn my shears the wood gives way readily, releasing moisture. It is right at the root flare, on the top of those roots, almost into the soil. It reminds of the damage a wood borer would do to a pine but no maggot, less goo, more wood. I have some slightly older willows that I think might have canker. A series of black spots on the trunk that slowly expand and seem to kill in peices? Anything to do? Finally I have corckscrew willows dying back from the tips into the branches with nothing on the trunks with the same black colour. Help.
P.S I got lost and might have posted this in another site, sorry if you are reading this twice.