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Plant Pathology Expert Witnesses

Plant diseases can destroy crops, nursery stock, and forests, creating substantial losses that often lead to disputes about cause and responsibility. Growers, seed companies, agrochemical manufacturers, nurseries, processors, and crop insurers litigate over contaminated seed and planting stock, fungicide and pesticide efficacy, crop failures, and quarantine and regulatory actions. Patent and licensing disputes also involve disease-resistant varieties and traits. The central question is usually what pathogen caused the damage, where it came from, and whether a party's product or conduct contributed.

A plant pathology expert helps attorneys identify diseases and trace their causes. The expert can examine field records, samples, laboratory diagnostics, weather data, and agronomic practices to determine the pathogen involved and how infection developed. The expert can also evaluate whether seed or stock was contaminated at the time of sale, whether products performed as labeled, and whether management practices met accepted standards. That analysis frames liability and causation and supports damages tied to crop losses, replacement, and lost revenue.

Plant pathology testimony is most persuasive when it comes from scientists with diagnostic and field experience. Round Table Group can identify plant pathologists, extension specialists, and agronomists, including faculty at land-grant universities such as UC Davis and Cornell, scientists with experience at the USDA Agricultural Research Service, and members of the American Phytopathological Society. Their expertise helps a fact-finder understand how plant diseases develop and spread. We've completed more than 75,000 expert searches for litigators and can match the crop and disease issues in your case with a qualified expert. Let us help you identify that expert by calling us at (202) 908-4500.

Kinds of Cases We Work On

Round Table Group helps our clients find a wide variety of Plant Pathology expert witnesses for cases like:

01

Seed Company Sued Over Failed Resistance Trait

An agricultural cooperative sued a seed company after a soybean variety marketed as resistant to a major fungal pathogen suffered widespread infection across a significant share of planted acreage during a single growing season. We identified experts with experience in plant pathology, disease resistance trait validation, and agricultural field trial methodology. The expert's field-trial data review found the resistance claim relied on limited regional testing, supporting the cooperative's misrepresentation claim.
02

Plant Diagnostics Lab Disputes Misdiagnosed Pathogen Outbreak

A commercial greenhouse operator sued its plant disease diagnostics laboratory after a misdiagnosed bacterial pathogen led to a delayed treatment response that destroyed a substantial portion of a specialty crop production cycle. We identified experts with experience in plant pathogen diagnostics, laboratory testing protocols, and commercial greenhouse disease management. The expert's sample re-testing confirmed the original misdiagnosis, supporting the operator's claim against the laboratory.
03

Nursery Sued Over Certified Disease-Free Stock Claims

A landscaping contractor sued a wholesale nursery after a large shipment of certified disease-free ornamental trees introduced a fungal pathogen that spread across several completed installation projects. We identified experts with experience in nursery stock disease certification, plant pathogen transmission, and horticultural quality assurance standards. The expert's pathogen-tracing analysis confirmed the nursery shipment as the source, supporting the contractor's claim.
04

Fungicide Maker Disputes Efficacy Claims After Losses

A regional grower cooperative sued a fungicide manufacturer after a newly launched product failed to control a widespread blight despite efficacy data presented during the sales process. We identified experts with experience in plant pathology, fungicide efficacy trial design, and agricultural product performance evaluation. The expert's trial-data review identified a methodological gap between the marketing claims and controlled testing conditions, supporting the cooperative's claim.
05

Quarantine Agency Disputes Phytosanitary Certification Denial

An agricultural exporter sued a government quarantine agency after a phytosanitary certification for a shipment was denied based on a pathogen test the exporter alleged used an outdated detection protocol no longer recognized under current trade standards. We identified experts with experience in phytosanitary certification standards, plant pathogen detection methodology, and international agricultural trade compliance. The expert's protocol review confirmed the outdated method, supporting the exporter's appeal.
06

Forestry Contractor Sued Over Disease Management Failure

A timber company sued its forestry management contractor after a fungal disease outbreak spread across a significant portion of a managed forest tract due to a delayed and inadequately scoped treatment response. We identified experts with experience in forest pathology, forestry disease management protocols, and timberland stewardship standards. The expert's response-timeline analysis identified the inadequate treatment scope, supporting the timber company's claim.
07

Crop Insurer Disputes Pathogen Diagnosis Behind Claim

A crop insurer disputed a grower's claim for pathogen-related yield loss, alleging the diagnosing agronomist's field assessment misattributed the damage to a covered disease rather than an excluded cultural practice issue. We identified experts with experience in plant pathology diagnosis, crop yield loss assessment, and agricultural insurance claims evaluation. The expert's field re-assessment confirmed the pathogen diagnosis, supporting the grower's claim against the insurer's denial.
08

Plant Breeder Sued Over Undisclosed Disease Susceptibility

A commercial grower sued a plant breeding company after a newly licensed tomato variety proved highly susceptible to a common regional pathogen the breeder's release documentation had not disclosed. We identified experts with experience in plant breeding disease susceptibility testing, cultivar release documentation standards, and horticultural pathology. The expert's breeding-record review found the susceptibility was documented internally before release, supporting the grower's claim.
09

Biocontrol Product Maker Disputes Efficacy Testing Data

A crop protection distributor sued a biocontrol product manufacturer after a biological fungicide's field performance fell well short of the efficacy data presented in the distributor's licensing negotiations. We identified experts with experience in biocontrol product efficacy testing, plant pathology field trial design, and agricultural biological product evaluation. The expert's trial-methodology audit identified inconsistent application conditions, supporting the distributor's claim.
10

Seed Certifier Sued Over Pathogen Testing Oversight

A regional seed cooperative sued its seed certification agency after a certified seed lot later tested positive for a regulated seed-borne pathogen the agency's certification process should have detected. We identified experts with experience in seed certification protocols, seed-borne pathogen testing methodology, and agricultural quality assurance standards. The expert's protocol audit identified a sampling-rate deficiency, supporting the cooperative's claim against the certifying agency.

Here are a few of our favorite Plant Pathology Expert Witnesses:

Plant Pathology Expert #19678

I have 18 years of experience in the field of plant pathology, with specific knowledge of molecular host-pathogen interactions, phenolics, and phytoalexins. I have published on such topics as molecular and biochemical plant defenses, horticultural crop diseases, and molecular mechanisms of pathogenesis.

 

California Plant Pathology Expert #19898

I have 25 years of experience in the field of plant pathology with specific knowledge of fungal diseases of fruit trees, vines and mycotoxins. I have published on such topics as postharvest pathology, epidemiology, ecology, fungal ecology, population dynamics and population diversity, and aflatoxins in almond and pistachios. I have testified on gray mold of kiwifruit, pomegranate problems in storage and kiwifruit decay.

 

Texas Plant Pathology Expert #21143

I have 36 years of experience in the field of plant pathology with specific knowledge of disease management, diagnosis and plant parasitic nematodes. I have published on such topics as disease loss, host resistance to disease and disease management.

 

California Plant Pathology, Food Systems Expert #26431

I have 15 years of experience and specialize in the field of plant pathology, with specific knowledge of chemical, cultural and biological control. I have published on such topics as the use of weather driven disease risk forecasting models, cultural controls and biological controls.

 

California Plant Pathology Expert #26441

I have 25 years of experience and specialize in the field of plant pathology with specific knowledge of diagnostics, pest management, and agriculture and horticulture. I have published on such topics as new plant diseases, invasive pests and pesticides. I have testified on chemical damage to plants.

 

Your Case Deserves The Best Plant Pathology Expert Witnesses

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The right expert witnesses and consulting experts can make your case. That’s why we have spent so many hours over the past quarter century making sure our clients have just the right expert team — whether one expert or many, early-stage advice or expert reports and testimony. Across over 50,000 expert search assignments, we have honed a unique, customized approach to identifying, analyzing and connecting with expert talent so you can focus on winning your case.

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Idaho Plant Pathology, Water Quality Expert #27257

I have 25 years of experience and specialize in the field of environmental and agricultural microbiology, with specific knowledge of pest control, water quality and biotechnology. I have published on such topics as environmental microbiology, biological control and genetically engineered organisms in the environment. I have testified on environmental microbiology and land use.

 

Oregon Plant Pathology Expert #27455

I have 33 years of experience and specialize in the field of plant pathology with specific knowledge of potato, sweet corn and grass seed. I have published on such topics as application of soil fumigants and foliar fungicides, virus and fungal diseases of potato and general vegetable diseases. I have testified on diseases of onions, herbicide drift and herbicide injury.

 

Texas Plant Pathology Expert #29746

I have 27 years of experience, and specialize in the field of plant pathology with specific knowledge in the areas of plant disease problems and plant cultural problems. I have published on such topics as new diseases. I have testified on chemical injury, plant injury, and cultural issues.

 

West Virginia Plant Pathology Expert #30448

I have 25 years of experience, and specialize in the field of plant pathology with specific knowledge in the areas of fruit tree diseases, tree bark wound healing, and fungicide use. I have published on such topics as disease prediction, bark wound healing, and fruit tree disease biology.

 

Nebraska Taxonomy, Plant Pathology Expert #36763

I have 23 years of experience in the field of botany, with specific knowledge in the areas of plant taxonomy, horticulture, and medical plants. I have published on such topics as plant disease host range, plant classification, and pollination biology.

 

Cytoskeleton, Plant Pathology Expert #37542

I have 15 years of experience, and specialize in the field of fungal cell biology with specific knowledge in the areas of plant pathology, cytoskeleton and membrane trafficking. I have published on such topics as endocytosis, motor activity and chitin synthase in plant infection. My inital training is in freshwater and ecology. However, I did my habilitation in Germany in enetics in cell biology. This unique combination and the success of my concepts makes me world leading in my field.

 

Put Our Plant Pathology Expert Network to Work for You

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Our huge network of experts – eminent university professors and practitioners who have achieved renown as thought leaders in their fields – combined with unparalleled research capabilities puts the experts you need at your disposal when and where you need them.

If you’re a litigator or general counsel, we want to put this network to work for you and your clients. Let us know how we can help by calling us at (202) 908-4500 or filling out the form on this page. We’re so confident you’ll love what we do that unless you retain an expert we present there’s no charge!

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Questions Attorneys Ask About Plant Pathology Expert Witnesses:

A plant pathology expert is warranted when liability or coverage depends on the cause of plant disease or crop loss. Typical matters include seed and nursery stock disputes, agrochemical efficacy claims, crop insurance disputes, and regulatory and quarantine actions.
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