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Joined: Jan 2009
Posts: 28,534 Likes: 842
Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,534 Likes: 842 |
Use of copper compounds is outdated and environmentally damaging. Use of modern synthetic compounds is more effective and environmentally friendly. RAH, what do you you recommend for FA control?
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Joined: May 2009
Posts: 5,722 Likes: 282
Lunker
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Lunker
Joined: May 2009
Posts: 5,722 Likes: 282 |
https://aquaplant.tamu.edu/management-options/filamentous-algae/Diquat (Rated: Good) Alkylamine Salts of Endothall (Rated: Good) Flumioxazin (Rated: Good) Sodium Carbonate Peroxyhydrate (Rated: Good) I personally control it in my ponds by managing nutrients through a healthy population of plants. Copper fungicides work well but can accumulate in soils.
Last edited by RAH; 05/11/22 08:04 AM.
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Joined: Feb 2011
Posts: 5,312 Likes: 300
Moderator
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Moderator
Joined: Feb 2011
Posts: 5,312 Likes: 300 |
I've had a bad experience with Alkylamine Salts of Endothall (Hydrothol 191). It does kill fish, and I lost fish in my hatchery pond. They started floating within a few hours.
If the water is void of fish, or shallow enough that small fish aren't swimming in the problematic area, then it does work well. I did use up my bag of Hydrothol, but I was very selective of where I used it.
AL
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Joined: May 2009
Posts: 5,722 Likes: 282
Lunker
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Lunker
Joined: May 2009
Posts: 5,722 Likes: 282 |
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Joined: Feb 2011
Posts: 5,312 Likes: 300
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Posts: 5,312 Likes: 300 |
I'm not even gonna check that. If you posted it, I know it's correct. So, be extra careful with Alkylamine Salts of Endothall, and do your math. It's the only herbicide/algaecide that caused me problems. I would also consider going with liquids if possible. The fish I lost were in the granular fall zone, and no fish were killed adjacent to that. If I could have seen those fish, I would have gone a different route.
AL
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Joined: May 2009
Posts: 5,722 Likes: 282
Lunker
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Lunker
Joined: May 2009
Posts: 5,722 Likes: 282 |
Thank you for your confidence, but its always good to check advice. We do have some really knowledgeable folks here that challenge dogma (and some outdated university extension recommendations) which is why I have a nice YP/SMB pond.
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