Any advice on how to repair holes in wool?

[OakLeaf]

I would darn it, personally. It's been a long time, but I've darned wool sweaters in the past, and a careful job of darning can hide pretty well.

I really doubt it's the detergent that caused your holes though, especially if the jersey was in a mesh bag. Crickets and roaches will eat woolens, too, and they're a lot more common than moths. (Not saying anything about your housekeeping, roaches or "palmetto bugs" or "water bugs" are just a fact of life in some parts of the country.)

Or, even through a mesh bag, if you had anything else in the load with hooks or Velcro they could've snagged your jersey. Or even the zipper from the jersey or the bag itself, if they were positioned wrong.

Edit: YouTube video