The glassy-winged sharpshooter is one of the more recent invasive pests to afflict California agriculture. The insect transmits a bacterial pathogen that causes Pierce's disease, which has impaired production of wine, table, and raisin grapes in California. The report recommends strengthening the process and the priorities for research funded by state agencies and wine industry groups to address Pierce's disease and its vector. Research should be focused on identifying feasible options for controlling the spread of the disease and providing sustainable approaches that are adaptable and affordable over the long term. Several avenues of research be pursued more intensely including the genetic makeup of the pathogen that triggers Pierce's disease, understanding the mechanisms that make grapes resistant to the disease, the possibilities of introducing predator enemies to the sharpshooter, and new ways to manage the planting of crops to help avoid spread of the disease.
The role of the Chinese in California agriculture during the later decades of the 19th century and early part of the 20th century was an integral aspect of the agricultural history of the western United States. Although the number of Chinese involved in agricultural occupations at one time never exceeded 6000 to 7000 workers, their lack of numbers does not diminish their impact. Author Chan, of Chinese origin, has made extensive use of census records and county archival sources to produce the first full history of the Chinese in California agriculture.
At the outset of World War II, California agriculture seemed to be on the cusp of change. Many Californians, reacting to the ravages of the Great Depression, called for a radical reorientation of the highly exploitative labor relations that had allowed the state to become such a productive farming frontier. But with the importation of the first braceros—“guest workers” from Mexico hired on an “emergency” basis after the United States entered the war—an even more intense struggle ensued over how agriculture would be conducted in the state. Esteemed geographer Don Mitchell argues that by delineating the need for cheap, flexible farm labor as a problem and solving it via the importation of relatively disempowered migrant workers, an alliance of growers and government actors committed the United States to an agricultural system that is, in important respects, still with us. They Saved the Crops is a theoretically rich and stylistically innovative account of grower rapaciousness, worker militancy, rampant corruption, and bureaucratic bias. Mitchell shows that growers, workers, and officials confronted a series of problems that shaped—and were shaped by—the landscape itself. For growers, the problem was finding the right kind of labor at the right price at the right time. Workers struggled for survival and attempted to win power in the face of economic exploitation and unremitting violence. Bureaucrats tried to harness political power to meet the demands of, as one put it, “the people whom we serve.” Drawing on a deep well of empirical materials from archives up and down the state, Mitchell's account promises to be the definitive book about California agriculture in the turbulent decades of the mid-twentieth century.
Nitrogen is indispensable to all life on Earth. However, humans now dominate the nitrogen cycle, and nitrogen emissions from human activity have real costs: water and air pollution, climate change, and detrimental effects on human health, biodiversity, and natural habitats. Too little nitrogen limits ecosystem processes, while too much nitrogen transforms ecosystems profoundly. The California Nitrogen Assessment is the first comprehensive account of nitrogen flows, practices, and policies for California, encompassing all nitrogen flows—not just those associated with agriculture—and their impacts on ecosystem services and human wellbeing. How California handles nitrogen issues will be of interest nationally and internationally, and the goal of the assessment is to link science with action and to produce information that affects both future policy and solutions for addressing nitrogen pollution. This book also provides a model for application of integrated ecosystem assessment methods at regional and state (subnational) levels.
What? Los Angeles was the original wine country of California, leading the state's wine production for more than a century? Los Angeles County was the agricultural center of North America until the 1950s? And where today's freeways soar, cows calmly chewed their cud? How could that be? Los Angeles, the capital of asphalt and Klieg lights, was once a paradise filled with grapevines and bovines, so abundant with Nature's gifts that no one could imagine a more pastoral place? Los Angeles County was the center of an agricultural empire. Today, it is the nation's most populous urban metropolis. What happened? Where did the green go? As Americans connect with gardens, farmers markets, and urban farms, most are unaware that each of these activities have deep roots in Los Angeles, and that the healthy food they savor literally had its roots in L.A. This book is for all who treasure the country's agrarian history.
Scholars working for communities' rights in California's Central Valley In the Struggle tells the story of the persistent engagement of eight public scholars spanning generations of sustained endeavor, a dogged war in which workers and scholars together repeatedly took on the powerful agricultural industry, the political machines, and even the universities. The stories begin in the 1930s with Paul Taylor, a professor of economics at University of California, Berkeley, who pioneered field research and activism as he travelled through the areas marked by the Great Depression, together with his wife, photographer Dorothea Lange. Working in the heart of California's agricultural Central Valley, Taylor was the first of a succession of scholars who shared the dual commitment to research and engagement, to making problems visible and to effecting change through strategic action. Taylor and Lange intentionally wove their political engagement into their identities and work as researchers, as they conducted studies, led strikes, organized underserved communities, founded community development programs, created nonprofit institutions, and more. This book documents a tradition of politically engaged scholarship in one of the world's most dramatic contexts, full of disparities and contradictions, but also ripe with opportunities to make a difference. It covers a struggle that continues undiminished in the present.
Agricultural yields have increased steadily in the last half century, particularly since the Green Revolution. At the same time, inflation-adjusted agricultural commodity prices have been trending downward as increases in supply outpace the growth of demand. Recent severe weather events, biofuel mandates, and a switch toward a more meat-heavy diet in emerging economies have nevertheless boosted commodity prices. Whether this is a temporary jump or the beginning of a longer-term trend is an open question. Agricultural Productivity and Producer Behavior examines the factors contributing to the remarkably steady increase in global yields and assesses whether yield growth can continue. This research also considers whether agricultural productivity growth has been, and will be, associated with significant environmental externalities. Among the topics studied are genetically modified crops; changing climatic factors; farm production responses to government regulations including crop insurance, transport subsidies, and electricity subsidies for groundwater extraction; and the role of specific farm practices such as crop diversification, disease management, and water-saving methods. This research provides new evidence that technological as well as policy choices influence agricultural productivity.