The secret to successful chalkstream fishing is picking the right fly for the right moment; even the best cast in the world will not impress trout if the fly on the end is something they do not want to eat.

Fortunately, as we approach the third century of what we call modern fly fishing our forebears have put in the work to create a palette of patterns to tempt even the choosiest trout, but that palette runs to something over 6,000 flies!

However, in my Hatch Calendar I have reduced that veritable smorgasbord of feather and fur into a few dozen must-have flies to cover the season. Organised month-by-month, this lists which flies to use and when, with photographs of both the fly and the insect it imitates. In addition, there are useful hints on tactics, weather, hatches and much more.To download you copy click here.

In addition, all the flies chosen in my Hatch Calendar are available to buy in a single fly box. With the Fly Hatch Pack you will receive 78 flies in labelled box, a printed copy of the Hatch Calendar and access to my subscriber-only web page where you will be able to match the hatch to pick the right fly, for the right moment for any given time of day from your mobile phone.

To order the 78 Fly Hatch Pack click here. Below is an example of the entry for the Black Gnat to give you a flavour of what to expect.