I have had a terrible FA problem in my two year renovated pond this year, only a little in the pond built last December. The guy that gets my hay spreads turkey litter in the watershed. I asked him to go light above the ponds, but guess he forgot. I could stop the hay operation, but then would have to brush hog it a couple of times per year at my expense.

I wonder how early next year I would need to start with cutrine treatments to keep the FA from becoming a problem?