Impact of Herbicides Glyphosate 41% S.L. and 2, 4-D 600 S.L. on Mesquite (Prosopis juliflora Swarz- DC) Growth and Control

Abstract

The experiment was carried out at the Faculty of Agricultural Studies, Shambat, Sudan University of Science and Technology for two consecutive summer seasons of the years 2016 and 2017 to evaluate and compare the impacts of two post-emergence herbicides applied in Sudan: glyphosate 41% E.C. applied at 7.90, 9.20 and 10.60 l/fed (0.42 ha) and 2, 4-D 600 SL applied at 2.60, 3.90 and 5.20. l/fed., to determine the most suitable mesquite control treatment. Results showed that all herbicides treatments at their different rates significantly reduced plant height (cm), number of leaves/plant and number of leaflets/plant. The lowest Plant height (cm), number of leaves/plant and number of leaflets/plant was achieved by the highest rates of glyphosate and 2, 4-D. The highest plant height control efficiency (PHCE), number of leaves/plant control efficiency (NLCE) and number of leaflets/plant control efficiency (NLLCE) was achieved by the highest rate of glyphosate. Within the two herbicides treatments the best mesquite control was achieved with glyphosate at highest rate.