Ask-a-Dave's-Gardener: Solomon\'s Seal turning yellow, roots rotting with tiny white worms, 2 by CamCourt

CamCourt wrote:
Long established patch of Solomon\'s Seal has 5-6 fronds turning yellow every day, pull right out when tugged. Roots rotted, black, some showing tiny white worms, right next to healthy(see pix) Online sources only mention sawfly, doesn\'t seem like it. (pix attached)-- Only one description of same thing online, from gardener in Ontario, no good answer from Toronto Master Gardener
[HYPERLINK@www.torontomastergardeners.ca]
Hoping someone here can tell me more! Or if not, should I just dig up the whole patch--and is there anything I need to do to cleanse the soil before replanting?
UIPDATE: Savvy gardener friend identified the problem as root maggots, more often discussed in relation to root vegetables. I dug up every frond with any tinge of yellow, raked the soil for any rotting tubers left behind, and a week later the rest of the patch is looking green and healthy. Fingers crossed!

This message was edited Jul 9, 2022 4:25 PM