Ecology and management; Ecology and management of Broom Snakeweed (SP 342); Snakeweed populations in New Mexico, 1978-1989 (SP 343); Soils and site potential of Snakeweed rangeland (SP 343); Hydrology of Snakeweed dominated rangelands (SP 345); Snakeweed seed characteristics and germination requirements; Physiology of Broom Snakeweed in relation to chemical control (SP 346); Pesticide application technology (SP 347); Probability of Snakeweed die-off and invasion on rangeland (SP 348); Use of herbicides in Snakeweed management (SP 349); Use of fire in Snakeweed management (SP 350); Economics of Broom Snakeweed control (SP 351); Influence of livestock grazing on Broom Snakeweed populations (SP 352);Bulletin containing the proceedings of the symposium "Broom snakeweed: Problems and perspectives," which took place on November 9-10, 1989, in Las Cruces, New Mexico
