pond weed in a sentence

1. He successfully fought efforts in the 1980s to import the grass carp to Massachusetts to eat exotic pond weeds.
2. "Elodea canadensis ", sometimes called American or Canadian water weed or pond weed, is widely known as the generic water weed.
3. Opportunistic feeders, the geese would eat whatever the landscape provided, from tundra to pond weeds, as well as corn and other grains.
4. It's difficult to find pond weed in a sentence.