That is a species of chiton (Class Polyplacophora), a relatively primitive type of mollusc.

I already checked into how to separate isopods from the non-worm compost for exactly that reason. It seems easy enough. In the worm bin, I've noticed they tend to loiter near the surface; they aren't really found in the casts. I'm wondering if simply crumbling the stuff while applying to spot and pick out the odd stray will be sufficient. Alternatively, I might try a quick dunk to send them running for fear of drowning. I could try the spread and sun dry approach that's supposed to work with regular compost, but isn't it bad to let your vermicompost dry out?

Omgosh, U have sprouts!! If I were u , I would Cut the rotting parts of the tubers out & get some root stimulator. Bonide root & grow or Fertilome root stimulator are the bomb! Without it I wouldn't have as many plants as I do now it's a plant savor! U can Pot up the sprouts w/ what's left of the tuber ( after cutting out the mushy stuff) into a light organic potting Mix & water well w/root stimulator ( follow directions on back) I planted 42 tubers this year - out of 42 , 4 of them rotted -lucky ducky barely had ANY tuber left but I was able to save them all bc of the root stimulator:) :) while the remaining good parts of the tuber slowly start to rot again - I'm guessing- it fed the sprouts until they were able to grow new roots. After a week & half or so - I went & carefully dug up the sprouts to see that the rest of the tuber rotted around the sprout but the sprouts grew their own roots- whoopie!! I was able to save jens wedding, lucky ducky, new dimension & blue bayou by doing this :) if it's really hot right now where u live, I would keep them in shady spot until they root. I also used smaller pots so I didn't rot the remaining parts of the tuber faster than it could grow roots & so I could also keep an eye on the water saturation, ect.. good luck ! :) :) :)

That's exactly what they are! I think they're really cool looking, don't you? There are not too many things that allow you to look into their 'innards'. For the most part, these sawfly larvae do cosmetic injury and the tree will recover from the assault and leaf out normally next season. Treating them is not recommended unless it happens a few years in a row, which can weaken the tree. Lots of other critters will move in to feast on these pests, another reason to avoid spraying.