Garden Pests and Diseases: Some kind of borer ruined my shastas, 1 by winging

winging wrote:
Thanks for you message. I've re-cropped the photo to get closer in. It looks white with two antennae and multiple tiny legs. I didn't notice the tinier things that look like grains of sand when looking at it in person the other day. I'm not sure what those actually are. This is a piece of the root and crown my husband cut open since the little bugger had gone inside. Camera shy, I guess.

I'm thinking I might dig out all six of the shastas, pot up what looks healthy (if anything does), and then try to deal with the soil if possible.

This has been a bad year for diseases and pests in my garden for some reason.

Thanks.
w