It’s hemp and tares time...
I FIND that low, clear rivers often produce good sport, especially for roach and chub, as long as they don’t get that nasty dead algae blight – what looks like strands of roll-up baccy adorning keepnets and waders.
The prevailing conditions are usually brilliant for baits such as hemp, tares and sweetcorn. Some days you wouldn’t know there was a roach for miles if you fished maggot or caster, but feed some seed, fish tares on the hook and it can be like turning on a switch.
However, if there’s brown algae suspended in the water there’s not much that will save your day.