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Know Your fish Food Part 4-The Olive Upright
The Olive Upright (Rhithrogena Semiclorata) A very important food source for both trout and grayling on the Rivers Usk and Wye This insect is a very important food source for the River Usk and Wye as it arrives at the end of the Grannom and March Brown hatches and the Dark Olives have diminished in numbers. They