Welcome to the California Department of Food and Agriculture
Governor Schwarzenegger

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Scientific Staff

Dr. Riad Z. Baalbaki, Associate Seed Botanist (Riad's webpage)

Education: B.S., 1979, M.S., 1982, American University of Beirut, Lebanon; Ph.D., 1989, Michigan State University, East Lansing.

Experience: Assistant Professor of Plant Sciences, American University of Beirut, Lebanon, 1992-1998; Associate Professor, Department of Plant Sciences, American University of Beirut, Lebanon, 1998-2005 (Chairperson, 1998-2001); Associate Seed Botanist, California Department of Food and Agriculture, 2006-2008; Senior Seed Botanist, California Department of Food and Agriculture, 2008-present.

Area of Specialty/Responsibility: Seed germination and viability testing; vigor evaluation; seed moisture determination; biochemical seed analysis; statistical analysis.

Jim Effenberger, Senior Seed Botanist (Jim's webpage)

Education: B.A., 1970 Central Washington University, Ellensburg, Washington.

Experience: Botanist, USDA, Sacramento, California 1972-1982. Seed Botanist II, California Department of Food and Agriculture, 1982-1984. Associate Seed Botanist, California Department of Food and Agriculture, 1984-2001.  Senior Seed Botanist, CDFA, Plant Pest Diagnostics Branch, 2001-present.

Area of Specialty/Responsibility: Perform highly complex and specialized analyses on seed taxonomic problems. Identify native and foreign plant propagules on a worldwide basis. Conduct training workshops for seed analysts.

Don Joley, Senior Seed Botanist (Don's webpage)

Education: B.A., 1969, M.S., 1974, California State University, Chico.

Experience: 02/06-present Senior Seed Botanist, CDFA Seed Laboratory, 02/03-01/06 Associate Seed Botanist, CDFA, Seed Laboratory, 06/90-01/03 Associate Environmental Research Scientist, CDFA, BCP, 03/82-06/90 Pest Management Specialist III, CDFA, BCP, 04/78-03/82, ASB II/ Pest Management Specialist, CDFA, BCP, 12/76-04/78, ASB I/II, CDFA, Control and Eradication, 02/76-12/76 Agricultural Services Biologist (ASB) I, CDFA, Biological Control Program (BCP).

Area of Specialty/Responsibility: Perform complex and specialized analyses on seed taxonomic problems, Identify native and foreign plant propagules on a worldwide basis, Primary responsibility for seed quarantine and feed mill approval programs.

Deborah Meyer, Senior Seed Botanist, Supervisor (Deborah's webpage)

Education: B. A., 1986, M.A., 1978, California State University, Sacramento.

Experience: 10/04–present Senior Seed Botanist–Supervisor, CDFA Seed Laboratory, 06/00–09/04 Senior Seed Botanist, CDFA Seed Taxonomy Laboratory, 07/84–05/00 Associate Seed Botanist, CDFA Seed Taxonomy Laboratory, 02/82–07/84 Seed Botanist II, CDFA Seed Taxonomy Laboratory, 12/80–09/81 Agricultural Inspector I, CDFA Seed Physiology Laboratory and Botany Laboratory, 02/78–09/80 Agricultural Aid, CDFA Seed Physiology Laboratory and Botany Laboratory.

Area of Specialty/Responsibility: Seed Laboratory–Supervisor (staff of five scientists, 4 technicians and 2+ scientific aides); primarily responsible for identification of seeds, fruits, and other plant propagules on a worldwide basis; provides scientific consultation on seed identification and seed quality assessment; performs research and develops new diagnostic methods related to the specialized fields of seed taxonomy and seed quality assessment; serves as Quality Assurance Manager for the Seed Laboratory.

Julia Scher, USDA Collaborator (Julia's webpage)

Education: B.A., 1980, University of Michigan, Ann Arbor; M.S., 2003, University of California, Davis.

Experience: Taxonomist, United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, Center for Plant Health Science and Technology, 2002 – present.

Area of Specialty/Responsibility: Development of computer-based matrix-type identification (Lucid) tools, technical support, training.

Supervisors

Deborah Meyer, Senior Seed Botanist, Supervisor (Deborah's webpage)

Education: B. A., 1986, M.A., 1978, California State University, Sacramento.

Experience: 10/04–present Senior Seed Botanist–Supervisor, CDFA Seed Laboratory, 06/00–09/04 Senior Seed Botanist, CDFA Seed Taxonomy Laboratory, 07/84–05/00 Associate Seed Botanist, CDFA Seed Taxonomy Laboratory, 02/82–07/84 Seed Botanist II, CDFA Seed Taxonomy Laboratory, 12/80–09/81 Agricultural Inspector I, CDFA Seed Physiology Laboratory and Botany Laboratory, 02/78–09/80 Agricultural Aid, CDFA Seed Physiology Laboratory and Botany Laboratory.

Area of Specialty/Responsibility: Seed Laboratory–Supervisor (staff of five scientists, 4 technicians and 2+ scientific aides); primarily responsible for identification of seeds, fruits, and other plant propagules on a worldwide basis; provides scientific consultation on seed identification and seed quality assessment; performs research and develops new diagnostic methods related to the specialized fields of seed taxonomy and seed quality assessment; serves as Quality Assurance Manager for the Seed Laboratory.

Timothy Tidwell, Program Supervisor (Tim's webpage)

Education: B.A., 1973, California State University, Sacramento; M.S. , 1977 University of California, Davis.

Experience: Postgraduate researcher, Department of Plant Pathology, University of California, Davis, 1977; Agricultural Biological Technician II, California Department of Food and Agriculture, 1977; Plant Pathologist I, California Department of Food and Agriculture, 1978-1979; Associate Plant Pathologist (Diagnostician), California Department of Food and Agriculture, 1979-1992; Environmental Research Scientist, California EPA, Department of Pesticide Regulation, 1992-1995; Associate Plant Pathologist (Diagnostician), California Department of Food and Agriculture, 1995-1997; Senior Plant Pathologist (Diagnostician), California Department of Food and Agriculture, 1997-1999; Senior Plant Pathologist (Supervisor), California Department of Food and Agriculture, 1999-2003; Program Supervisor (Plant Pathology, Nematology, Botany, Seed Botany), California Department of Food and Agriculture, 2003-present..

Area of Specialty/Responsibility: Plant Diseases caused by Fungal Pathogens; Tree Pathology; Seed Health Testing, Phanerogamic pathogens.

Technical Staff

Thomas Moore, Agricultural Biological Technician

Evelyn Ramos, Agricultural Biological Technician

Connie Weiner, Agricultural Biological Technician

Seasonal Technical Staff

Coming soon.

Former Scientific Staff

Paul Peterson, Senior Seed Botanist, Retired

Dr. Marian Stephenson, Senior Seed Botanist, Retired