For LMB/BG when water temps get to 55 and dropping reduce feeding. Stop feeding when fish stop eating actively. This can changed from place to place based on local conditioning. When temps start rising in early spring start feeding slowly and increase with activity. Two very important times for feeding for fish health is in fall when temps are dropping but still 60-55 (improved condition going into winter) and when temps start to rise in early spring (improved condition for reproduction).