When the Water's Dirty, Bring the Worm Fulling Mill Perdiworm Blending the squirmy attraction of a worm with the sink-fast profile of a perdigon, the Fulling Mill Perdiworm is your go-to point fly when visibility is low and flows are high. Designed to get down and stay down, this fly is a master of current penetration—making it ideal for runoff conditions, spring creeks after storms, or any situation where big fish feed deep. The Perdiworm’s bombproof construction shrugs off rocks, trout teeth, and repeated drifts, so you can fish aggressively without losing performance. Whether you're euro nymphing or running a tight-line rig, this dirty-water crusher belongs at the bottom of your rig when the trout are hugging the substrate. Key Features: Style Number: FM-PERDIWORM Fly Type: Hybrid worm-perdigon jig fly Head: Heavy tungsten bead for maximum sink rate Body: Durable synthetic coating for longevity Design Purpose: Made for dirty or stained water Presentation: Point fly on euro or indicator rigs Strengths: Extremely durable, highly visible, sink-fast Target Species: Trout in freestone, tailwater, and high-flow systems Summary Attribute Detail Fly Name Fulling Mill Perdiworm Fly Type Worm-style perdigon jig Hook Type Barbless jig (varies by size) Best Use High and off-colored water Weighted Yes – heavy tungsten bead Special Feature Bombproof finish for tough conditions The Fulling Mill Perdiworm is a bombproof, sink-fast worm jig fly perfect for dirty water and high flows. Ideal for trout feeding deep in off-colored rivers.
