Economic Evaluation of Chemical Mesquite Control Using 2,4,5-T

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Abstract
Honey mesquite (P g. var. glandulosa) represents the most severe brush problem in the Texas Rolling Plains [USA]. Substantial research has been conducted on control methods, but economic analysis has been limited. An evaluation model is developed and the economic feasibility of 2,4,5-T (2,4,5-trichlorophenoxy acetic acid) for honey mesquite control in the Rolling Plains is evaluated. The model is used to estimate the net present value of added grass production from treatment with 2,4,5-T over the life of the treatment; the central part of the model is the estimated herbage yield response function. The gross value of treatment with 2,4,5-T was estimated using different combinations of livestock price, top kill, canopy cover, and discount rate. The gross value of mesquite control is given for the situations analyzed, and compared to current treatment costs.

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