Chemical management of aquatic macrophytes under simulated floodplain condition in mesocosms.

Floating natives ( and ) and emergent exotic invasives ( and ) macrophytes grow as aquatic weeds in both natural and artificial floodplain areas in Brazil, where the chemical control should be researched. The herbicides glyphosate and saflufenacil, alone or mixed, were tested for weed control under simulated floodplain condition in mesocosms. Glyphosate (1,440 g ha), saflufenacil (120 g ha), or glyphosate (1,440 g ha) + saflufenacil (42, 84, and 168 g ha) were applied firstly; and 75 days after treatment (DAT), glyphosate (1,680 g ha) was applied as a follow-up treatment to control plant regrowth.