- Get to Know California Agri Diagnostics-

We’re Experts in Precision Plant Health Testing

- Get to Know PlantPathLab (California Agri Diagnostics) -

Grow Smarter, Grow Stronger.

PlantPathLab (California Agri Diagnostics) is a certified and approved laboratory recognized by both the California Department of Food and Agriculture (CDFA) and the United States Department of Agriculture (USDA). This approval underscores our commitment to meeting the highest standards of accuracy, compliance, and quality in agricultural diagnostics.

At PlantPathLab (California Agri Diagnostics), we’re not just testing—we’re transforming the future of farming.

With cutting-edge diagnostics for plant, seed, soil, and water health, we help growers around the world take the guesswork out of crop management. Our mission? To catch plant diseases before they spread, protect your harvest, and unlock higher yields with sustainable precision agriculture.

Whether you're managing a vineyard, orchard, or large-scale farm, our early detection tools give you the insights you need to grow healthier crops, conserve resources, and maximize productivity—season after season.

Healthy Crops. Thriving Harvests. A Greener Future. Let’s work together to safeguard your crops and the planet—one test at a time.

  • Trusted by Farmers & Researchers

Our lab is known for reliability, speed, and scientific accuracy.

  • Tailored Crop-Specific Solutions

We provide actionable reports to suit different crop types and environments.

Agricultural Disease Detection Accuracy
93%
Organic Input Testing & Compliance
80%
- Our Beneifts -

Why Choose PlantPathLab?

At PlantPathLab (California Agri Diagnostics), we believe healthy crops begin with healthy roots. Our advanced diagnostics help farmers and agribusinesses identify harmful pathogens early—so they can protect, nurture, and optimize their fields naturally.

  • Early Detection, Better Protection
    Catch plant, soil, water, and seed diseases before they spread—saving time, crops, and costs.

  • Higher Yields with Precision Diagnostics
    Make smarter decisions backed by accurate lab results to boost crop performance.

  • Sustainable & Resource-Efficient Farming
    Conserve water, reduce chemical use, and farm smarter with targeted treatment.

  • Trusted Expertise for Every Grower
    From vineyards to large farms, we tailor diagnostics to your needs with proven technologies.

We’re popular leader in agriculture & Organic market.

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- Our Testimonials -

What client say about us.

Bryan Van Groningen

Vice President, Crops & Soils, Van Groningen & Sons, Inc.

As Vice President of Crops & Soils at Van Groningen & Sons, Inc., I’ve relied on PlantPathLab (California Agri Diagnostics) for many years. Sam Livingston and his team consistently provide thorough soil, plant, and seed testing that has become essential to how we farm. 

Sam Gnanamanickam

Senior Principal Scientist, R&D, Biotech Innovations.

"PlantPathLab (California Agri Diagnostics) located in Stockton, CA are known to me as superior, quality-minded service providers. They can provide diagnostic needs for your crop and can afford help in the Registration of your Products in the State. I provide an unwavering recommendation and support".

Ben Waddell

Fruit Growers Laboratory

"I have been a client of Dr. Sam and PlantPathLab (California Agri Diagnostics) for many years, and they have always delivered! Service is fast, friendly, and results are clear and accurate. I have always been able to count on Dr. Sam."

Tom Hart

Hart Crop Consulting

“Everyone there has treated me as a valued customer. I appreciate your professionalism and I have enjoyed doing business.”