Green Drakes
These large insects are "trout candy" across the United States. Green drakes are the largest mayflies that provide fishable hatches in fast rivers. Look for hatches to begin in May & June on most rivers. Green Drakes are large insects and trout love them. When Green Drakes hatch in good numbers the trout forget all other foods and target drakes only. A dense hatch of Green Drakes can bring the largest trout to the surface.