The Lower Deschutes has certainly gone into summer hatch mode with the end of the stonefly hatch and more and more caddis hatches. PMD’s have been around but not super strong every day. You can’t go to the Lower D in summer without PMD’s and don’t forget the Pale Evening Duns too. They are bigger than then the PMD’s and can create some excellent dry fly fishing in the Magic Hour before dark.
Caddis are important all day long now, get in under the trees and fish the margins of the shorelines and in the eddies with caddisfly emergers, adults and egg layers. And again, Pupa. Super important as a nymph almost anytime of the day.
Great nymping action on other things besides caddis pupa of course. Frenchies, Perdigons in many colors but orange, olive, brown and black have been favorites, Walts Worm, 2 Bits, Micro May’s, Rainbow Warrior, Soft hackles, Red Copper John and Psycho Prince. Euro Style, Drop Shot style, under the indicator or dry/dropper are all good.
Good times on the Trout Spey too. Leeches and Sculpin patterns on the swing is good stuff.