This time period is normally from the first of June through mid-July. When mesquite becomes too thick, it tends to dominate rangeland, he said. When this happens, competing grasses and forage plants do not receive the moisture, minerals, space and sunlight they need to grow. Duncan said ranchers should consider the area to be sprayed and the physical condition of the mesquite before deciding whether to spray this year. When spraying mesquite plants, ranchers need to make sure they are in good physical shape.
Winds also can affect spraying conditions.
Winds and high temperatures cause plants to put on a heavy wax coat, making it difficult for herbicides to penetrate, he said. For more information, contact the local county Extension office.