There has been a dearth with almost no pollen going into the hives.
Right now we have begun our knotweed bloom, and I expect our goldenrod bloom in about two weeks. I expect the goldenrod honey flow to end around October first.
Our club speaker, Tom McCormack, last Thursday said we should feed six weeks before the honey flow starts, March 1 through April 15, and July through August 15.
He recommended formic acid at the beginning of August, if I recall correctly.