Tree ant / bug guard or trap 

Simple design, no supports needed. 

Just print 2 pieces, glue them together and add zip ties.

Once dry, fill with water.

For extra protection, you can add some foam between the pieces amd the tree stump.

This model will fit a stump with a diameter of 42 mm.

For bigger or smaller trees, just scale it to you needs.

This model was designed by me, but it is inspired by this one:

https://www.thingiverse.com/thing:4970825

Printed in PLA, 3 walls, 0.2mm layer height.

No supports required.