For fishing all our small waters it is the time of year when you can rely on caddis life cycle and especially terrestrial insect patterns as being effective for taking trout. Particularly effective mayfly patterns this time of year vary water to water and are generally less important as trout food. Here are some exceptions. On the Teton River in the canyon and below gray drakes are important. Western green drake patterns (flavs, etc) will be important on South Fork and Palisades Reservoir tribs, particularly Big Elk Creek. These are also important on the Big Lost River. Any small stream of low gradient, sandy/silty bottom and adjacent or in-stream still water (think beaver ponds) will have some speckled dun populations. In a few weeks tricos will be important in attracting trout on many streams. So don’t switch all your mayfly patterns to storage!