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#566955 05/11/24 07:39 AM
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Does anyone have thoughts or experience with fighting curlyleaf pond weed? liquid vs granular aquathol?
Does it make sense to try and drag some out of pond? About half an acre.

Thanks,
jim

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Originally Posted by jim100
Does anyone have thoughts or experience with fighting curlyleaf pond weed? liquid vs granular aquathol?
Does it make sense to try and drag some out of pond? About half an acre.

Thanks,
jim


You are better off using a low dose of Fluridone. 10 PPB dosage will kill it and not kill other plants in the pond. You cannot have water flow thru for 30 days though.


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Ok will do. Thanks for help.
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A good time to proactively treat curlyleaf CLPW is in fall using a Fluridone based product at at 10-11ppb as noted by esshup. Curlyleaf starts growing in late summer - early Fall and then plants sit relatively dormant late Fall and winter when the water temp drops below 50F. . Then in early spring as water reaches 50F-55F it continues growing. The Fall low dosage of Fluridone will persist through winter to keep killing/suppressing CLPW. In early spring a 1/2 dose 5ppm can be applied to enhance the remaining Fluridone to knock out the plants that were not killed in the Fall application.

Last edited by Bill Cody; 05/11/24 08:44 PM.

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So should I wait now until fall. Its bad and right to the surface on 70 percent of pond.
Thanks for help guys.
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Originally Posted by jim100
So should I wait now until fall. Its bad and right to the surface on 70 percent of pond.
Thanks for help guys. jim

If you don't have water flowing out of the pond, you can treat now and it will be dead before it sets seeds for this year. Give me an accurate surface area of the pond and the max depth plus your best guess as to the average depth (measure it, don't guess at max depth). I can tell you how much Fluridone you will need to use.


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Thanks Esshup!

It is roughly an oval that is .52 acres. The max depth is a measured 9 feet.

Thanks again.
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Originally Posted by jim100
Thanks Esshup!

It is roughly an oval that is .52 acres. The max depth is a measured 9 feet.

Thanks again.
jim

O.K. IF your average depth is 4.5 feet then you need 2 fl. oz. of Sonar A.S. to treat the CLPW in your pond at a dosage of 10 PPB.


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Perfect thanks!!
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Originally Posted by esshup
You are better off using a low dose of Fluridone. 10 PPB dosage will kill it and not kill other plants in the pond. You cannot have water flow thru for 30 days though.

I also have curlyleaf pondweed and naiads that I would like to control with Fluridone. I have some pickerelweed that I purchased and planted and don't want to harm. This label indicates that pickerelweed is not controlled by Fluridone. Not sure if that means zero harm but sounds promising. Also, the standard dosage on that label in 90 ppb. Is 10 ppb Fluridone safe for pickerelweed in your experience? I think so.

https://www.solutionsstores.com/amfile/file/download/file/1779/product/618/

Last edited by Knobber; 05/21/24 02:34 PM.
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90ppb will impact pickerelweed.
Originally Posted by Knobber
Originally Posted by esshup
You are better off using a low dose of Fluridone. 10 PPB dosage will kill it and not kill other plants in the pond. You cannot have water flow thru for 30 days though.

I also have curlyleaf pondweed and naiads that I would like to control with Fluridone. I have some pickerelweed that I purchased and planted and don't want to harm. This label indicates that pickerelweed is not controlled by Fluridone. Not sure if that means zero harm but sounds promising. Also, the standard dosage on that label in 90 ppb. Is 10 ppb Fluridone safe for pickerelweed in your experience? I think so.

https://www.solutionsstores.com/amfile/file/download/file/1779/product/618/

If it was my pond, I'd treat at 10 ppb with Fluridone and use Aquathol Super K to spot treat *some* of the naiad.


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