Yarn, wet flies, jigs...etc These things are not considered LURES.

I believe that almost all these fish are flossed ( by mouth or tail) and do not bite. They are scared of all the a-holes and are only interested in getting up river.

Lure A manufactured article, complete with
hooks, constructed of feathers, hair, fiber, wood,
metal, glass, cork, leather, rubber, or plastic,
which does not use scent and/or flavoring to
attract fish..

Fly A lure on which thread, feathers, hackle, or
yarn cover a minimum of half of the shank of
the hook. Metallic colored tape, tinsel, mylar, or
bead eyes may be used as an integral part of
the design of the fly pattern.