Acclaim Extra Herbicide Acclaim Duckweed is a very common

Duckweed is a very common nuisance aquatic weed that is spread from pond to pond via waterfowl or other wildlife

annual (Poa annua)

Cinquefoil

and it has no metal parts to corrode or rust

Acclaim Extra Herbicide Acclaim Duckweed is a very commonAcclaim Extra Herbicide Acclaim Extra Herbicide is an effective post emergent product for control of crabgrass and goosegrass without destroying labeled turf grass. Product is dry within one hour of spraying, while ideal time to spray would be when weeds are actively growing. Acclaim Extra can also be used to temporarily suppress the growth of Johnsongrass rhizomes and common bermudagrass. Highly recommended to use Pen A Trate II Premium Surfactant