ABSTRACT
This chapter focuses on a data from experiments designed to determine the residue levels and rate of dissipation of the dimethylamine salt of 2,4-dichlorophenoxy-acetic acid (2,4-D) in water, hydrosoil, and fish from ponds treated at 2.24, 4.48, or 8.96 kg 2,4-D acid equivalent per hectare. Three ponds were located on the Plantation Golf Course at Crystal River, Florida. These ponds serve only as water hazards on the golf course, and are not used for drinking or irrigation purposes. Four private ponds within a 16.1-km radius of Warm Springs, Georgia were used as a second geographical site. Since the ponds contained established fish populations of desired species, only enough fish were added to ensure an adequate number of fish for the experiment. Ponds were sprayed with 2.24, 4.48, or 8.96 kg 2,4-D acid equivalent per hectare using a commercial formulation of herbicide. The effect of the 2,4-D application on water hyacinth in Florida and Georgia ponds was assessed by visual observation.
