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in are area lakes and that's hydrilla, coon tail and lilly pads

Are you sure that hydrilla is present in PA lakes is? There is a common northern native pond plant called elodea. Both to the untrained eye look the same. Compare the two species.
http://www.njwsa.org/uploads/1/0/8/0/108064771/hydrilla_fact_sheet_elodacomparison.pdf

Hydrilla is considered invasive and nuisance often creating problems. Elodea is native and more easily controlled compared to hydrilla. Grass care eat elodea. Not sure if GC control hydrilla.

Instead of cattails use aquatic iris "blue flag", sweet flag (standard and variegated), lizard tail. See info in this link.
https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=440475#Post440475

Last edited by Bill Cody; 08/07/22 06:59 PM.

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