Progress 06/01/01 to 05/31/04
Outputs
This grant, administered through the University of California Division of Agriculture and Natural Resources, sponsored the UC Pierce's Disease Research Grants Program (2001-03). The grant funded 16 projects that addressed Pierce's disease and its vectors. More information about each project can be found at http://www.cdfa.ca.gov/phpps/pdcp/gwSymposium.htm In 2001, the initial year of this project, the UC Pierce's Disease Research Grants Program received 31 proposals. Through the scientific review process, we were able to fund 16 projects represented by investigators from five states (California, Arizona, Illinois, Florida, New York). Some of the projects were funded for two years; when two-year funding was approved, it was contingent upon receipt of continuing proposals and yearly reports required to document progress and continued potential of success of the projects. Following is a list of the projects funded by the University of California Pierce's Disease Grants
Program in 2001. ++Sharpshooter feeding behavior in relation to transmission of Pierce's disease bacterium ++Characterization and studies on the fundamental mechanisms of Xylella fastidiosa transmission to grapevines by the glassy-winged sharpshooter ++Keys to management of glassy-winged sharpshooter: interactions between host plants, malnutrition and natural enemies ++Chemical control of glassy-winged sharpshooter: Establishment of baseline toxicity and development of monitoring techniques for detection of early resistance to insecticides ++Biology and ecology of glassy-winged sharpshooter in the San Joaquin Valley ++Reproductive biology and physiology of glassy-winged sharpshooter ++Sampling, seasonal abundance and distribution of glassy-winged sharpshooters in citrus and grapes ++A monoclonal antibody specific to glassy-winged sharpshooter egg protein: A tool for predator gut analysis and early detection of pest infestation ++Impact of sub-lethal doses on neonicotinoids on
glassy-winged sharpshooter feeding and transmission of Pierce's disease ++Microplate reader for analysis of plant tissue for the presence of Xylella fastidiosa ++Rootstock influence on Pierce's disease ++Role of type I secretion in Pierce's disease ++Production and screening of Xylella fastidiosa transpose on pathogenicity and attachment mutants ++Role of Xylella fastidiosa attachment on pathogenicity ++Directing potential anti-Xylella gene products ++Epidemiology of Pierce's disease in the Coachella Valley
Impacts
The California wine industry is now being assessed to support of efforts to contain the glassy-winged sharpshooter and control Pierce's disease, resulting in the formation of the California Department of Food and Agriculture's Pierce's Disease Control Board. Coordination of the CDFA program and the UC program will improve the likelihood of success of the research. The program engaged scientists at three University of California campuses and in four other states to work on this important issue. While it is unrealistic to expect that the first two years of a research program would have much specific impact, effort has been directed toward the glassy-winged sharpshooter, including surveys and trapping, increased inspection of nursery shipments and movement of harvested grapes. When new infestations of glassy-winged sharpshooter are found, attempts to eradicate them have been carried out, often successfully. There has also been a major effort to identify glassy-winged
sharpshooter parasites and develop methods for mass rearing and release, and fundamental studies on Pierce's disease biology, vector and disease control, and development of PD-resistant grapes have been initiated.
Publications
- No publications reported this period
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Progress 01/01/02 to 12/31/02
Outputs
The objective of the University of California Pierce's Disease Grant Program is to coordinate a peer reviewed competitive research program to address the needs of the grape industry in combating the current Pierce's Disease crisis. This crisis has been exacerbated by the introduction, establishment and spread of the glassy-winged sharpshooter, a more effective and dangerous vector of the PD pathogen, Xylella fastidiosa. The program is overseen by a Program Director assisted by a Guidance Committee consisting of representatives from industry, researchers and Extension. A Scientific Review Panel is selected with expertise to evaluate the proposals received. Priorities for research were determined by the UC Pierce's Disease Emergency Task Force and the deliberations of conference of international scientists, Pierce's disease and the Glassy-winged sharpshooter in California: Reviewing and Defining Critical Research, and industry representatives. An annual request for
research proposals was sent to all Experiment Station Directors in the United States and other universities and agencies with appropriate scientific expertise to address the development of control measures for the Pierce's disease pathogen and it's vectors. Scientific Panel reviewers were selected with expertise commensurate with the proposals received. Additional adhoc reviews were solicited from scientists at both US and international institutions. For this cycle, 31 proposals were received from researchers from 7 states. Of these, 16 were funded to researchers in 5 states. We have partnered with the California Department of Food and Agriculture to hold an annual Pierce's Disease Research Symposium and all investigators funded by the program reported their results at this years symposium.
Impacts
The initiation of this research program has given the grape and wine industry confidence that the Pierce's disease problem will be solved with the attraction of new scientists and expertise from throughout the country. They recognize that it will take additional time and have also increased their own support toward solving the problem.
Publications
- No publications reported this period
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