Many anglers will drift their matched fly over a troutās head only to watch the fish rise to the surface, ignore the fly, and then drop back to the bottom while throwing a finny middle finger. Many anglers donāt understand why this happens, especially when they know theyāve identified the right species of insect. What they may not realize is that no matter how perfectly detailed their fly is, most trout will still ignore it if itās not the right stage of an insect's life.
From emergers to duns to spinners, every mayfly on the water goes through its own life cycle with different trout concentrating on each stage of insect at different times. Luckily for us, though, trout feed on these insect stages in diverse but very recognizable ways known as rise formsā¦
Keep reading here | 