Constructing Weighted Trailing Hoses for Submersed Aquatic Herbicide Applications (SSAGR352/AG360)

Bottom acre-foot treatment with weighted trailing hoses.Why treat the upper half of the water column when the weeds are only present in the lower half? This 4-page fact sheet describes the benefits of using the “bottom acre-foot method” of applying herbicides with weighted trailing hoses and details the construction of the weighted trailing hose system used by the University of Florida Center for Aquatic and Invasive Plants.
Written by William T. Haller, Lyn A. Gettys, and Margaret S. Glenn, and published by the UF Department of Agronomy, August 2011.

Calibrating Equipment for Aquatic Herbicide Application (PI236)

checking herbicide nozzle uniformity
Calibration is the process of measuring and adjusting equipment performance. It is not difficult, but it does require some math. This 12-page fact sheet provides standard formulas and conversion factors incorporated into practical examples to help with calibration. Written by F.M. Fishel and published by the UF Department of Agronomy, July 2011.

SSAGR44/AG262 Efficacy of Herbicide Active Ingredients Against Aquatic Weeds

SS-AGR-44, a 3-page fact sheet by K. Langeland, M. Netherland, and W. Haller, provides a quick reference table describing the effectiveness of herbicide active ingredients for controlling common aquatic weeds, with guidance for their legal use. Published by the UF Department of Agronomy, June 2009.