Well managed permanent pasture Frequently long term perennial land may be limited for other uses by erosion, rocks etc. Periodically renovated, fertilized, control of brush and poisonous or noxious weeds. Crop value varies from very high for ornamental plantings and nurseries to low for windbreaks woodlots and forests. Weed control inputs vary greatly depending on size of plant and value of plantings. Tillage, crop shading, mowing, mulching, herbicides, and hand weeding may be appropriate.
Sheet mulches covered with decorative mulches are a good combination.
Individual plants may be targeted or there may be a general infestation to fight. The objective is total removal of vegetation from a relatively small area. Annual applications of highly persistent herbicide has been the standard practice. Resistant weed populations, damage to off-target vegetation and contamination of ground water are potential problems. Narrow strips a few feet wide by hundreds of miles long is typical.