Multiple hatches sometimes require a simple solution. That was the case yesterday on a charming SE Minnesota spring creek, where you could observe small BWO's, sporadic Light Hendricksons, small yellow craneflies and plentiful caddis flies .The weather was quite sunny and bright, and spring caddis were the most active under the trees. There were occasional surface risers, but the major feeding activity occurred under the surface. Trout were darting and fleshing in the riffles, intercepting emerging pupae.
I tried several pupa patterns, but settled for the very simple one, which trout found irresistible. For some reason, they preferred the fly with pretty thin body instead of the typical bulbous one. I fished mostly shallow riffles and shaded areas. The pattern designed to sink easily and weighted only with its copper wire rib is a perfect match for these conditions. It sinks just deep enough, it is not overdressed, and has plenty of action built in.
The fish took the emerging pupa fished upstream on the dead drift or twitched, and across or downstream on the swing. I got some fish on Light Hendrickson emerger as well, but it was still a bit early for this hatch on this particular stream-LH action should really start next week.The trout pictured is slightly above average size for this stretch of water. I released seven trout in a couple of hours of fishing during the mid-day.
I suspect the evening would bring out some spectacular dry fly action.
