The Beaverkill is low, as is typical during this end-of-summer month. Fortunately the cool evening temperatures should keep fishing conditions favorable.
Typically during the month of September beetles, ants and other terrestrials may be used with some success. There should be some remaining Trichos in the mornings
and Isonychias in the afternoons. Caddis flies and Blue-Winged Olives should be during the day, with a few Light Cahills still making an appearance.
The Elk Hair Caddis in size #14, and the Dun Variant, also in size #14, may encourage a trout to rise; 5X tippet is sufficient for flies of this size.
Approach the water quietly and carefully and with a minimum of disturbance and make every cast your best, and anticipate a strike once you cast your fly for improved fishing success.