Gentlemen, The weeds in my 1.5 acre pond are becoming a problem. I was hoping somebody could give me their best practices. I did some searching here and think I have an answer for most of the questions you guys typically ask. I also grabbed some pictures of the problem weeds. I think they're southern naiad, but I'm deferring to your expertise. As of today: PH: 9.0 Ammonia: .25ppm Nitrite: .25ppm Phosphate: 0.0ppm size: 1.5 acres avg-depth: 9-10 feet (13' for most of pond, with 30 degree banks and a 4' shelf along one shore that's overrun with cattails) water-source(s): ground water seepage/runoff water-uses: fishing/swimming fish present: LMB/BG static or transitioning water (degree & frequency): largely static, can close off the floodgate if needed % of weed-coverage: 20% of pond, 100% in swimming area are any other desirable plant species present?: cattails for BG cover, but they're getting excessive
I'd like to completely eradicate the suspected naiad from the swimming area, which is about 100 X 40 with a 4' average depth. Am I best off treating with Sonar AS, or is there a better Sonar for my situation? Possibly some other herbicide is a more suitable option? I was also reading about Spiritflo, which seems to have the same percentage of fluridone although I can't be sure of the other contents.
After a day of "mechanical removal" that I'm pretty sure will spread the naiad later this summer (and also left my legs screaming), I'm open to any ideas!