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Joined: Jun 2008
Posts: 6,980 Likes: 14
Ambassador Lunker
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Ambassador Lunker
Joined: Jun 2008
Posts: 6,980 Likes: 14 |
I guess the subject title about says it all. Is it possible to spot treat portions of my 2/3 acre pond for Sago pondweed, while maintaining aeration? I have been raking it out for over a week now, and can't tell any difference. I've got this stuff bad. All parts of the pond that are 5' or less have it on the bottom. It has reached the surface in a few spots, but mostly submerged.I posted earlier that I tried weedtrine D, but after 2 weeks there is little effect. I couldn't get the sprayed liquid down to the sago, so I'm looking into Hydrothol 191 granules, thinking they will sink down onto the pondweed. Is this a feasible idea? I know better than to kill off the entire pond at once, so how do you treat sections of it while maintaining aeration? Or do you? Am I out of luck? Thanks for any help.
Tony
"Forget pounds and ounces, I'm figuring displacement!"
If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.
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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 |
sprkplug, I don't have an answer for you. When I was running the aerator, I could treat the weeds because the aerator was in the deepest part of the pond, and the weeds were growing shallow. I would treat about 1/3 of the pond at a time.
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Joined: Jan 2010
Posts: 914
Lunker
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Lunker
Joined: Jan 2010
Posts: 914 |
Why don't you want to kill off all of the weeds at once? On a pond that small with aeration you cannot even consider spot treating with Endothall salt. That stuff is highly toxic to fish. I might spend the extra money and use Fluridione here.
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Joined: May 2010
Posts: 16
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Joined: May 2010
Posts: 16 |
Hydrothol is VERY effective on Sago but it is toxic to fish. I treated a lake earlier in the spring and had great results. It is pretty late to be treating in this manner and your growth will require more product. I agree with The Pond Frog that Fluridione may be a better choice to avoid fish toxicity. Even if you wait until next year and go with Hydrothol, they will need a safe haven to get away from the chemical. Your pond may not be big enough for them to find that spot.
Efficient Pond Management
Helping those in Eastern Iowa manage their pond
A division of Rooted in Iowa, LLC
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Joined: Mar 2005
Posts: 21,499 Likes: 267
Moderator Hall of Fame 2014 Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,499 Likes: 267 |
Look for aquathol as it is non-toxic to most pond fish.
Last edited by ewest; 07/14/10 08:56 AM.
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