Originally Posted by FishinRod
Do you also have crayfish?

I don't have them in my ponds, but I suspect their activity ramps up significantly as the water temperature warms.

I believe a large population of crayfish can cut and consume a fairly large crop of the plants they find tasty.

If there is an established population of crayfish in a pond, it is hard to get underwater weeds established. You can get what are considered to be "invasive" established, but natives? Not so much.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).