The updated edition of the classic, fundamental book on weedscience Weed Science provides a detailed examination ofthe principles of integrated weed management with important detailson how chemical herbicides work and should be used. This revisedFourth Edition addresses recent developments affecting weedscience. These include the increased use of conservation-tillagesystems, environmental concerns about the runoff of agrochemicals,soil conservation, crop biotechnology, resistance of weeds andcrops to herbicides, weed control in nonagricultural settings andconcerns regarding invasive plants, wetland restoration, and theneed for a vastly improved understanding of weed ecology. Current management practices are covered along with guidance forselecting herbicides and using them effectively. To serve as a moreefficient reference, herbicides are cross-listed by chemical andbrand name and grouped by mechanism of action and physiologicaleffect rather than chemical structure. In addition, an introductionto organic chemistry has been added to familiarize readers withorganic herbicides. Also included are guidelines on weed-controlpractices for specific crops or situations, such as small grains,row crops, horticultural crops, lawns and turf, range land, brush,and aquatic plant life. Generously supplemented with 300 drawings, photographs, andtables, Weed Science is an essential book for students taking anintroductory course in weed science, as well as a reference foragricultural advisors, county agents, extension specialists, andprofessionals throughout the agrochemical industry.

Scientists, scholars, and artists consider the political significance of recent advances in the biological sciences. Popular culture in this “biological century” seems to feed on proliferating fears, anxieties, and hopes around the life sciences at a time when such basic concepts as scientific truth, race and gender identity, and the human itself are destabilized in the public eye. Tactical Biopolitics suggests that the political challenges at the intersection of life, science, and art are best addressed through a combination of artistic intervention, critical theorizing, and reflective practices. Transcending disciplinary boundaries, contributions to this volume focus on the political significance of recent advances in the biological sciences and explore the possibility of public participation in scientific discourse, drawing on research and practice in art, biology, critical theory, anthropology, and cultural studies. After framing the subject in terms of both biology and art, Tactical Biopolitics discusses such topics as race and genetics (with contributions from leading biologists Richard Lewontin and Richard Levins); feminist bioscience; the politics of scientific expertise; bioart and the public sphere (with an essay by artist Claire Pentecost); activism and public health (with an essay by Treatment Action Group co-founder Mark Harrington); biosecurity after 9/11 (with essays by artists' collective Critical Art Ensemble and anthropologist Paul Rabinow); and human-animal interaction (with a framing essay by cultural theorist Donna Haraway). Contributors Gaymon Bennett, Larry Carbone, Karen Cardozo, Gary Cass, Beatriz da Costa, Oron Catts, Gabriella Coleman, Critical Art Ensemble, Gwen D'Arcangelis, Troy Duster, Donna Haraway, Mark Harrington, Jens Hauser, Kathy High, Fatimah Jackson, Gwyneth Jones, Jonathan King, Richard Levins, Richard Lewontin, Rachel Mayeri, Sherie McDonald, Claire Pentecost, Kavita Philip, Paul Rabinow, Banu Subramanian, subRosa, Abha Sur, Samir Sur, Jacqueline Stevens, Eugene Thacker, Paul Vanouse, Ionat Zurr