a. Control of brush and trees.
Wherever the grazing lands (rangelands or other permanent grasslands) are overgrown with trees, brush and other unpalatable vegetation, the reduction of this growth is necessary to provide opportunity for new seedings to become established. Practical methods might consist of (1) controlled burning under favorable conditions just prior to the rainy season, (2) use of selective herbicides applied as sprays or granules at seasons when the offending species are vulnerable, and (3) hand or machine grubbing. Any taller growing undesirable species should be reduced, so that adequate sunlight will reach the forage seedlings, and to reduce water consumption by the useless species.