I think if you read through the many discussions here about pruning you'll find that most do just as you do - closely snip off the branches that touch the ground or may lay in the dirt. I know I do and have for many years with no problems. The cut seals itself off very quickly.

I'm not sure exactly what the cuts would be vulnerable to that the rest of the plant isn't already vulnerable to? But I think that any compound one applied to the cut would only increase problems, not prevent them.

JMO

Dave

Thanks, Dave.

Yeah, I've never seen any problems, although I have previously read of people sealing their prunes so I figured I would ask to make sure.