Nah, nukes clean them up easily. You just need to aim for the head. The head only has 60% resistance to nukes. Add a bit of explosive damage (you’re gonna need it for gleba anyways) and big bois do get squashed easily.

I’d suggest to get a one time load of 200 uranium, manufacture the rockets on site. Then when ready, go seek your wormy friend and stay directly in front of it’s face, and hold space.

If you struggle to aim, or you can’t do quick getaways without your mech armour online, get a spidertron on the surface, then use it for rapid fire nukes at it. Heck, you can even do it remotely if you’re courageous.

☢️

I have only dealt with the small demolishers, but I can normally take care of them in 2 nukes as long as I hit the head.