Why does the fishing die during the mayfly hatch?

Because for a week or two the lake serves an all-you-can-eat buffet you cannot imitate well. On fertile lakes and rivers, Hexagenia mayflies emerge in astronomical numbers in early-to-mid summer, and walleye shift wholesale onto the larvae rising from the mud and the emergers in the film — easy, abundant, zero-chase calories. With every fish full, conventional minnow-and-jig fishing goes dead, and anglers call it the fish "disappearing" when it is actually the opposite: they are feeding heavily, just not on you. Adaptations that salvage it: downsize to small profiles that suggest a nymph (small jigs, plain hooks with a piece of crawler, slow-death rigs), fish the mud flats where larvae emerge rather than classic structure, and lean on night hours. Or accept the lake's schedule — the hatch ends, and the bite that follows it is often excellent.

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