Had an arborist recently look at one of my trees that's bouncing back from the 2021 freeze.

A lot of new bark is coming in so he's having me peel off all the old bark and treat it with insecticide and fungicide to keep these from getting under the remaining bark and help it along.

Any recommendations? He said Home Depot and Lowes sell these in spray bottles. Curious if anyone has any suggestions? I have 4 trees to apple to that are about 10-15' tall.