My poor hedges have been infected by these things so am in the process of cutting them down and disposing of it.
My question is do I need to take all of the bushes out including roots or can I cut way back to leave bare branches (maybe down to a quarter in height) and grow something fast growing round them like clematis or will the caterpillars never really leave then?
I’m on a budget and don’t have the heavy duty tools to cut and dig out the bushes so trying to make the best out of a bad situation really.