A carpeted roller, designed to wipe herbicide solutions onto brush stems and foliage, was evaluated for control of honey mesquite [Prosopis juliflora (Swartz) DC. var. glandulosa (Torr.) Cockerell] at 4 locations. Picloram (4-amino-3,5,6-trichloropicolinic acid) and clopyralid (3,6-dichloropicolinic acid) top-killed honey mesquite at all locations, whether applied in spring or fall. Mortality (root-kill) of plants treated with picloram varied from 38% of plants treated under drought conditions in south Texas to 97% of plants experiencing optimum growing conditions in central Texas. Clopyralid was equal to or slightly more effective than picloram, based on mortality near the end of the second growing season after treatment, whereas glyphosate [N-(phosphonomethyl)glycine] and triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy] acetic acid} were usually less effective. Solutions containing 120 g/L of herbicide active ingredient were more effective than solutions containing 30 g/L, but differences were sometimes slight. Small, widely spaced honey mesquites were more easily controlled with the carpeted roller than larger plants growing in dense stands. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.