Im not to familiar with any weeds but a water sample was taken from both ponds and they called it mesquito fern in one pond that is stocked with channel cats and has really taken over. Its a red colored mess and my job today is to drag, rake or seine as much as I can out of it in fear of a fish die off. Will this work for long or am I wasteing my time and back ache. \:D I seen the name Diquat somewhere on here is that a weed or weed killer?

Thanks Meadowlark for replying.

Big Fish Cliff