Blains Bay, Mohawk River, NYS

Project is part of U.S. Army Corps of Engineers research project comparing various herbicides on Trapa natans versus Trapa bispinosa.

Trapa natans

Clearcast @ 50 ppb.

Three sets of photos show pre-treatment plots (left) and plots treated with 50 ppb. Clearcast (imazamox) 4 weeks after treatment. Rosettes have broken apart and leaflets are found at different stages of decomposition.