cactus being eaten by something

[Cosmic Debris]

On a cactus I recently purchased I noticed an opening in the skin, when I looked closer I found that about 15cm long section of the inside of one of the ribs had been eaten. Could someone suggest what could have done this.

[gomaos]

Some mousies dont mind a nibble on the odd cactus when feeling peckish.

[Happy Cadaver]

Cockroaches got into my peyote seedlings a few months ago, i thought it was a fungi. they used to eat about 15 a night, the fuckers. had to re-cover the pots and get a few baits around. could be that.

[Cosmic Debris]

It wasnt a bite taken out of it, it looked like something had tunneled underneath the skin. The part that was eaten was 50cm above the ground.

[toby]

hi,

it sounds like a small caterpillar type thing that burrowed through a loph graft into the core of the trich it was joined to, i just kept slicing till i found it still eating, i found another going down the centre of new growth on p.viridis. i should have kept one to get an id on,

but at the time i was too freaked out, this was in early spring and i haven't seen any since.