Invasive plants can cause significant economic and ecological damage in natural areas. From an economic standpoint, invasive species can reduce livestock forage quality and quantity, jeopardize animal and human health, increase the threat of fire or flooding, interfere with recreational activities, or lower land value. The control of invasive plants uses many of the same tools and tactics used for control of other weeds, including mechanical, chemical, cultural, and biological controls. Some management options used to control invasive species in rangelands or wildlands are not generally available in urban or agricultural landscapes. Examples are prescribed burning, grazing, revegetation programs, and much more extensive use of biological control agents. In most cases, integrated approaches using combinations of these methods are more effective for long-term suppression of invasive species and for recovery of the land to a more functional and productive ecosystem. During this seminar, Scott will share several of his research projects examining various invasive weed species and strategies being tested to control them.