Control of woody plants on Western ranges.
A review in which the control of woody plants on the ranges of 11 Western States is discussed. The methods used are mechanical control, burning, chemical control and biological control, and various combinations of these methods. The types of woody plants problems on rangelands are divided into the following groups in this discussion: Big sagebrush (Artemisia tridentata) and rabbitbrush (Chrysothamnus spp.) which is often associated with sagebrush; coast sagebrush (A. californica), sage (Salvia spp.) and cayote brush (Baccharis pilularis); mixed coastal brush such as Rhus diversiloba, Rubus spp., Ceanothus spp. and Salvia spp. ; shrubby vegetation (termed Chaparral) consisting of Arctostaphylos spp., Ceanothus spp. and Quercus spp. ; chamise (Adenostoma fasciculatum), after mechanically clearing this land, buckwheat (Eriogonum spp.) is one of the first woody plants to appear; mesquite (Prosopis juliflora), and Haplopappus tenuisectus which may grow in association with mesquite. Prickly pear and cholla (Opuntia spp.); juniper and pinyon woodlands; woodland and woodland grass consisting of Quercus spp. and Pinus sabiniana: coniferous forests; scotch broom (Cytisus scoparius) and gorse (Ulex europaeus). - J.W.B.