I think you can transfer some of them to a tree that doesn't ever have them and start a colony. The "tobbie"worms usually hit here in early July. The state highway department planted several trees along the state highway many years ago. There were two trees in my uncle's yard. We made good use of the worms. They are great for bluegill and catfish.
The gentleman that sold me the trees told me to transfer some of the worms from producing trees to those that look like they may be barren to help in starting new colonies.
In the past I’ve taken live worms, put them in a plastic container with cornmeal in it, seal it up and freeze them. When thawed they’re just like when they were live as far as size and texture. That didn’t work well when freezing them in a container with water.
