Originally Posted By: Zep
I've had very good results on FA with Cutrine Plus Granules.

Before Cutrine Plus Granules:



After Cutrine Plus Granules:


Those are good results. My FA has been terrible this year. I failed to replenish the pond dye early enough I think. My pond looked about like your top picture so I sprayed the mats around the edge with Cutrine Plus doing 1/2 of the pond at a time. Did great, so I waited 2 weeks and spread Cutrine granules in 1/2 the pond in water 3 feet and deeper. Did the last half 10 days later. Two weeks later and the mats are coming back as heavy as before. I'm not sure if the granules didn't kill the FA deep or what. I did put the pond dye in when I spread the granules in the first half so it hopefully won't grow much now.