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Application of Herbicides on Rangelands with a Carpeted Roller: Shrub Density Influences Volume, Dosage, and Rate

Published online by Cambridge University Press:  12 June 2017

Herman S. Mayeux Jr.
Herman S. Mayeux Jr.*
Affiliation:
U.S. Dep. Agric., Grassland Soil and Water Res. Lab., Temple, TX 76503-6112
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Abstract

Herbicide solutions of known concentration were applied to honey mesquite (Prosopis glandulosa Torr. # PROJG) with a tractor-mounted carpeted roller. The volume of solution applied was measured, and average height and density of the honey mesquite stands were also determined. The volume of solution applied ranged from about 3 to 20 L/ha and was positively correlated with stand density (r2 = 0.71). Height of the stand had no influence on volume of solution applied. Amounts of herbicide applied at concentrations of 30, 60, and 120 g/L averaged about 0.2, 0.6, and 1.25 kg ae/ha, respectively. Calculated amounts of active ingredient of herbicide applied to individual plants (dosage) ranged from 0.3 to more than 3 g/shrub and decreased curvilinearly with increasing stand density, suggesting that the carpeted roller is most efficient in treating sparse stands.

Keywords

Prosopis glandulosaPRCJG
Type
Special Topics
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 444 - 448
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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