Why it works
- Land insects can enter the river unpredictably, giving fish a recognizable food source even when no aquatic hatch is underway.
- Ant, beetle, and hopper silhouettes differ strongly in body segmentation, size, legs, and water disturbance, so choosing the correct form is more important than choosing foam by itself.
- Bank habitat, shade, wind, and seasonal insect activity help explain where a terrestrial is likely to enter and how far the drift should continue.
