Can anyone identify this weed...

[LIE2ME]

...and tell me how to get rid of it? It popped up last year for the first time and has spread throughout the pond...

 

[JRS]

Welcome to the forum. Eurasian water milfoil comes to mind, invasive in lots of areas. ID also may depend on you location.

Eurasian Watermilfoil – Profile and Resources | Invasive Species Centre

Eurasian Water Milfoil is a perennial aquatic plant that grows under the water surface. Its leaves are feather-like with 12 or more thin segments.

www.invasivespeciescentre.ca

Lots of aquatic bunch plants look very similar so hard to say for sure from the picture and I am certainly no expert.

Aquatic plants: Simple Key: Go Botany

gobotany.nativeplanttrust.org

 

[j.w]

@LIE2ME
Kinda looks like a hefty crop of Anacharis (Egeria Densa) the really large kind)to me. Does it ever bloom and get tiny white flowers? Hard to tell exactly w/o seeing a piece of it really close up. I would love to have some of that wide, large kind in my pond!

 

[GBBUDD]

i have to agree @JRS that would be the plant that is the most destructive and invasive plant in America MILFOIL

 

[Mgessert]

Too bad you can’t put a manatee in the pond. They eat milfoil. You can contact the local DNR for assistance.