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 Expert  108006

Expert in Plant Pathology

Available for your Consulting and Expert Witness Needs

Washington (WA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has more than 40 years of practical experience in domestic and international agriculture. He has solved complex plant pathological problems in Central and South America, Mexico, and Africa. He has also served as an Agricultural Consultant in Armenia. His emphasis in international agriculture has been on implementing non-chemical disease and insect management. He has also helped develop plant diagnostic laboratories.

plant pathology

While on the faculty of Va. Polytechnic Institute Expert was responsible for testing new fungicides against diseases of woody nursery ornamentals. This involved working closely with representatives of manufacturers of agriculture chemicals. He also was involved with the USDA sponsored IR-4 program. Since retiement in 1988, he has continued to test new fungicides provided by IR-4 against diseases prevalent in the forest nursery industry.

pesticide testing

During his 34 years in plant pathology, Expert has placed a major emphasis on plant diseases caused by fungal pathogens. He has concentrated on soil-borne fungi with a special interest in genera of water mold fungi like Phytophthora and Pythium.


While on the faculty of Oregon State University, Expert's research activities were centered on fungal diseases of bulb crops. At Texas A&M from 1960 to 1963, his extension plant pathology responsibilities involved soil-borne diseases of cotton and field crops caused by fungi. Expert's four-year extension activities at Iowa State University were directed at foliar and root diseases of corn and soybeans caused by fungi. From 1967 to 1988, his extension specialist activities at VPI & SU included diagnosing and recommending controls for fungal diseases of herbaceous and woody ornamentals and vegetables.




Expert's career work at major universities in the US and his recent plant pathology volunteer work in Costa Rica, Guatemala, Bolivia, and Ecuador has been directed at developing management programs to prevent plant diseases. He has also worked as a volunteer with funded organizations like International Executive Services Corporation (IESC) and Volunteers in Overseas Cooperative Assistance (VOCA) to develop preventative programs based on non-pesticide control. He served as a Visiting Professor at Instituto Tecnologico Estudios Superiores de Monterrey in Mexico for 17 months on a Fulbright Fellowship teaching plant disease prevention to senior-level students in agronomy. He has served as a technician in the Department of Plant Pathology Plant Disease Clinic at Oregon State University (OSU). He was also employed as a Junior Plant Pathologist at OSU conducting research on the diseases of lily bulbs.

plant (botanical)


plant disease

Throughout his career, Expert has been responsible for developing and managing disease diagnostic laboratories. He served as a volunteer to government-funded universities and private agronomic laboratories in Latin America and Mexico to help upgrade the diagnostic services provided to all areas of commercial agriculture.

plant disease diagnosis

As a Fulbright Lecturer in Mexico for 17 months Expert was responsible for teaching senior level students in agronomy and testing marigolds in the field for fungus disease resistance and xanophyll content in their flowers. Marigold flower samples were analyzed by a qualitative laboratory in Mexico and also by a laboratory in the U.S. for xanthophyll pigments useful in the pigmentation of chickens and eggs.

field marigold production


fungal pathogen




plant growth


plant pathogen


plant rot

Expert has successfullty separated different species of the flowering plant Papaver. His under graduate training was in the field of botany with emphasis on taxonomy. He was employed by Virginia Tech University for 21 years as a plant pathologist in the area of diseases of shrubs and flowers.

fungal origin


flowering plant


hospital medicine


medicinal plant

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Seattle, Washington;  Tacoma, Washington;  Bellevue, Washington;  Everett, Washington;  Federal Way, Washington;  Kent, Washington;  Bellingham, Washington;  Lakewood, Washington;  and Renton, Washington.

Often requested
with this expert:

Plant Pathology, Forensic Agricultural Sciences and Custom...
Agronomy, Pest Management, Plant Pathology (Epidemiology...
Bioenergy, Renwable Energy, Bioproducts, Agricultural...
Gene Expression, Genomics, Microarrays, DNA, Drug...

Year   Degree   Subject   Institution  
1960   PhD   Botany & Plant Pathology   Oregon State University  
1956   MS   Plant Pathology   University of California, Davis  
1952   BA   Botany   University of Southern California  

Work History:
Years   Employer   Title  

1988 to 2000


self employed


Independent Consultant


1967 to 1988


Virginia Polytechnic Institute and State Univer


Plant Pathologist


1963 to 1967


Iowa State University


Plant Pathologist


1960 to 1963


Texas A&M University


Plant Pathologist


Career Accomplishments:

American Phytopathological Society (APS),Pacific Division of APS


Porter Henegar Award for Horticultural Research by So. Nurserymen's Assoc, 1979

Medical/Professional Internships

Fulbright Lecturer Award at Tec Estudios Superiores de Monterrey in Mexico, 1985-1987

Publications and Patents Summary

Over 100 Cooperative Extension Service leaflets and bulletins.

Selected Publications and Publishers  
 - Timber Press  

Consulting Services:
Selected Consulting Examples:
  • Expert Witness Expert did investigative field and laboratory research in Florida from 1988 through 1992 for several different attorneys to determine the cause of ornamental plant injury and long term poisoning of nurseries caused by the application by nurserymen of Benlate DF, a fungicide manufactured by E.I. duPont.
Recent Client Requests:
  • Labeling expert familiar with Prop 65 for consulting on magnesium chloride and sulfate of potash fertilizers.
  • Expert in new product development to provide input into launch of disruptive qPCR technology.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Botanist expert for consulting on papaver somniferum.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Expert is fluent in Spanish. He has some experience arranging joint ventures in Guatemala between American and Guatemalan companies.


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