How to Tie an Egg-Laying Grannom (Caddis)

Producer: Tim Flagler

Matt Grobert ties an Egg-Laying Grannom, a pattern designed to imitate both dark and light grannom caddis as they return to the river in late spring to deposit their eggs—a behavior that causes trout to feed with abandon on the females laden with bright green egg sacs.

As Grobert notes: “It can be fished dry, both dead-drift and with some drag, to imitate that behavior. And it can be fished wet, with a small shot about 6-inches ahead of the fly on the leader—cast it above the log or rock where the caddis are massing and let it swing around the object into the current below where the trout will bang it as it drifts by.”