McNair Symposium

25th McNair & 7th PURS Research Symposium

Omar Cortez


Herbicide Resistance on Palmer Amaranth (Amaranthus palmeri)

In the United States palmer amaranth (Amaranthus palmeri S. Watts) is a problematic weed that limits economical crop nutrients. This weed species originated from southwestern United States and northwestern Mexico and has spread across twenty-eight different states. The purpose of this research is to evaluate untreated, low and high rate treatments of Gly Star Plus in two trials for fourteen days after the treatment has been applied. Lower herbicide rates will likely have a resistance from the herbicide due to the low amount of herbicide applied to the weeds. The research project has shown us that the plants sprayed with the higher rate of GlyStar Plus were the most effective compared to the low and untreated plants to control the weed.

Faculty Mentor: Dr. Alinna Umphres

Department of Agriculture, Agribusiness, and Environmental Sciences

Poster presentation

Omar Cortez