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The pattern notebook · emerger

WD-40

How do you tie a WD-40?

WD-40 is a emerger fly pattern for trout. Find its 5 materials and 9 tying steps below.

Difficulty
1 of 5
Target species
trout
Pattern designer
Mark Engler

Added to catalog · Updated

At the vise

Materials

  • Emerger Hook, size 16-22
  • Thread (70 Denier), Olive
  • Mallard Flank, Natural
  • Dry Fly Dubbing, Olive
  • Squirrel Dubbing

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Tying instructions

  1. Secure the emerger hook in the vise.

  2. Start the thread at the eye of the hook and wrap rearward to the bend.

  3. Select a small bunch of mallard flank fibers and tie in at the bend for the tail, extending about half a shank length beyond the bend.

  4. Dub a small amount of olive dry fly dubbing onto the thread to form a thin dubbing noodle.

  5. Wrap the dubbing noodle forward to create a slim, tapered body, stopping at the 60% mark on the shank.

  6. Select another small bunch of mallard flank fibers and tie in at the 60% mark to form a wing, extending slightly beyond the body.

  7. Wrap in a dubbing noodle of the squirrel, wrap flank feathers forward and then secure.

  8. Whip finish and trim the thread.

  9. Apply a small amount of head cement to the thread wraps for durability.