Insects and other foods the trout should be eating:
1. Little BWOs
2. Green Sedges (Caddisflies)
3. Cinnamon Caddis (Mostly Abrams Creek)
4. Little Short Horned Sedges
5. American March Browns
6. Giant Stoneflies
7. Light Cahills
8. Little Yellow Stoneflies (Yellow Sally)
9. Eastern Pale Evening Duns
Most available/ Other types of available food:
11. Sculpin, Minnows (Streamers)
KISS A Bug Series - Green Sedge
Now that I have caught up on some of the basics of caddisflies, I will proceed with the Green
Sedge. As mentioned yesterday, the Green Sedge is a free-living caddisfly that probably
represent about ten to twenty percent of all caddisflies in trout streams nationwide;however,
in the Smokies, they represent a much higher percentage of the overall caddisfly population.
The reason for their decent population in Great Smoky Mountains National Park is the
free-living larvae of the Green Sedges prefer fast-water and there's no shortage of that. The
larvae (green rock worms) live in riffles, runs and rapids because they must have a steady
flow of oxygenated water that passes over their bodies. They have simple, spike-like gills or
either non at all.
I also mentioned that they are easy for the trout to find and eat and that they have no
protection whatsoever, other than hiding down between the rocks and other objects as best
they can. You can catch trout on imitations of the larvae year-round.
These caddisflies are in the Rhyacophila genus (remember genus is just a group of similar
insects within the same family) the name of which means Green Sedge. By the way, in case
you missed it or have forgotten, sedge is just another word for caddisfly.
The larvae of the Green Sedges are called Rock Worms or sometimes Green Rock Worms.
There are several species of them in the park. I also mentioned something yesterday that I
will restate. I think these are the most important caddisflies in the park.
The larvae look very similar to some of the net-spinning caddisfly larvae but one simple thing
will quickly distinguish the two types. The Rock Worm is the only one with just one hard plate
behind its head. The net-spinning larvae have three. There are other differences but this is
the easiest way to identify them.
Imitating the Larvae:
These caddisflies don't build shelters to house themselves in. That's one thing that makes
them different from the net-spinning larvae. The larvae try to get down in between rocks but
they are unable to do that very well. They are poor swimmers but move about searching for
food much of the time.
These larvae move around on the bottom much like an inchworm does on the ground. In
fact, if your caught without any of our Perfect Fly imitations of the larvae you may get by in
the fast water fishing an imitation of the inch worm. That why locals do so well with the fly
they call the Green Weenie. Although it is intended to be an imitation of an inch worm, or
moth larvae, it works fairly well imitating a Green Rock Worm.
You can fish imitations of the Green Rock Worm larvae just like you would fish a nymph in
the fast water sections of the streams. They prefer broken water of the riffles and runs.
You should add plenty of weight to help keep the fly down in the faster current. It's best to
place split-shot on the tippet about six inches above the fly. Short, up and across
presentations work best in most situations. The high stickiing method of nymphing also works
very well for this but any technique that keeps the fly down on the bottom will work.
You can fish the fly using a strike indicator but because the bottom of the streams in fast
water sections vary greatly in depth, an indicator hinders your ability to keep the fly on or
near the bottom.
Copyright 2012 James Marsh
Free Living Rock Worm - Rhyacophila
Perfect Fly Green Sedge larva (Rock Worm)