Pond experts - what is it and how do I kill it?

[snowwolfe]

Starting to completely cover our lake and it needs to be gone

[Hickory]

Talk to your county extension agent for the proper and safe way to manage your pond.

[dilly]

This is the kind of posts where those who know this kind of thing might benefit from knowing at least what part of the country you are in.

Isn't there a member named fishman (approximately) who knows all about ponds?

[MarkP]

Looks like Duckweed.... not sure what to use but I know there are chemicals that will kill it.

[hoosierlogger]

Duck weed. Koi love it. About 10 8-10" fish per acre will annihilate it. You have to put them in As soon as it starts to show on the surface. If you wait till it is covered do not expect results that year. That stuff multiplies like illegal immigrants getting handouts from Obama.

[snowwolfe]

The pond is in Tennessee. From my limited online research my best guess is it is duck weed or pond weed.
The leaves are 2-3 inches long and connect to a root system that runs along the bottom of the pond

[oneokie]

Grass Carp will do the trick if you do not want to use chemicals.

[Iron Whittler]

You might give Dunn's Fish Farm a look see. They may be able to help you with your problem. Iron Whittler

[BrentD]

The leaves are 2-3 inches long and connect to a root system that runs along the bottom of the pond

Not duck weed.

[Hawks Feather]

Not duck weed.

Yea, Duck Weed is much smaller and floats.

[dale2242]

We have weeds that look just like that here in Southern Oregon that covering a lot of the shallow ponds.
It worse the last couple of years with the mild winters not freezing I down.
It will literally cover the entire surface...dale

[HarryT]

Looks kind of like nymphaeaceae (dwarf lily pad), are there any flowers visible? Glyphosate will kill it if you don't want to use grass carp.

[WILCO]

http://www.pondmanagement.org/

[WILCO]

http://trophypond.com/

[WILCO]

http://greenwaterfishfarm.com/aboutponds.htm

[WILCO]

http://www.google.com/url?sa=t&rct=j...-VMTGZ3xrKHpNw

[MaryB]

Lily pad is great cover for fish....

[Lonegun1894]

I can't identify the lily pad type plant, but see some underwater weeds in the spaces between leaves, and a big cluster of it in the lower right corner of your photo that I hope for your sake ISN"T Hydrilla. It is an invasive species we have in a lot of lakes here in Texas and it will try to choke out everything you want in that pond/lake.

[NavyVet1959]

I can't identify the lily pad type plant, but see some underwater weeds in the spaces between leaves, and a big cluster of it in the lower right corner of your photo that I hope for your sake ISN"T Hydrilla. It is an invasive species we have in a lot of lakes here in Texas and it will try to choke out everything you want in that pond/lake.

Or worse -- water hyacinth...

https://en.wikipedia.org/wiki/Eichhornia_crassipes

One of the fastest growing plants known, water hyacinth reproduces primarily by way of runners or stolons, which eventually form daughter plants. Each plant can produce thousands of seeds each year, and these seeds can remain viable for more than 28 years.^[1] Some water hyacinths were found to grow up to 2 to 5 metres a day in some sites in Southeast Asia.^[2] The common water hyacinth (Eichhornia crassipes) are vigorous growers known to double their population in two weeks.

One of the lakes that I spent a lot of time around in my younger days got infected with that ****. They fought it, but they never could seem to get much headway.

One interesting fact about hydrilla and water hyacinths though is that they actually absorb the contaminants in the water and make it cleaner.

[lavenatti]

When I was growing up in Northern NJ a friends pond used to get covered with the stuff. His dad would send us out in a rowboat with fine mesh nets and five gallon buckets.
We'd scoop the stuff up all day while rowing around and throwing it at each other. We never beat it, we'd clean an area up and it would be back in no time.