https://ladybirdplantcare.co.u...
I don't endorse the shop
It just came up when I googled. Interesting information. It is a grub that eats roots. This site suggests nematodes - I've been spraying my garden with those recently. I'm using them to get rid of ants, although there are different kinds that target different bugs. I'm sure there are lots of other ways to get rid of them.