CSP Labs Express: Same-day or next-day plant disease testing for time-sensitive samples only
How Express Works

Global Leader in

Plant Pathology &

Genetics Testing

Established in 1992, CSP Labs is an ISO 17025 and NSHS (National Seed Health System)-accredited laboratory specializing in advanced seed and plant health testing. With a world-class team of scientists, highly trained technicians, and cutting-edge facilities, we deliver fast, reliable, and innovative solutions for our customers.

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ISO 17025:2017 Accredited

For certain PCR and ELISA tests offered at CSP Labs USA.

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ISO 17025:2017 Accredited

For certain ELISA tests offered at CSP Labs Asia Ltd.

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Your Trusted Partner for Accredited Testing Solutions

With over 30 years of industry experience, CSP Labs provides dependable testing services to support healthier crops and a more secure food supply. Our accreditations and expertise position us as an essential partner for growers, seed companies, and agricultural leaders worldwide.

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Have a specific testing request? Contact us for more information or inquiries at 916.655.1581.

Seed Health Testing

Testing seeds for pathogens for quality assurance.

Plant Health Testing

Detecting viral, fungal, and bacterial pathogens in plant tissue.

Genetics & DNA Testing

Genotyping, marker-assisted breeding, variety identification, and hybrid purity testing.

Soil & Nematode Testing

Identifying soil-borne pathogens and nematodes.

GMO Testing

Qualitative and quantitative detection of genetic elements and specific events using real-time PCR.

High-Throughput

Sequencing (HTS)

Advanced pathogen detection and genetic analysis.

Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff) Assay Expected Later This Year

CSP Labs is preparing for NSHS accreditation and supporting upcoming EU testing requirements.

SNP-Based Fusarium Wilt Resistance Testing for Melon

Now offering SNP-based GBAS testing for Fusarium wilt resistance in melon, targeting Fom-1 and Fom-2 genes to support faster, more efficient breeding.

22 New ISO Accredited Tests at CSP Labs Asia

Now offering 22 new ISO-accredited tests at CSP Labs Asia located in Khon Kaen, Thailand. Explore our updated services and accreditations on the newly refreshed webpage.

Authorized by DAFF for ToMMV & ToBRFV Seed Health Testing

Effective 1 October 2025, DAFF requires tomato and capsicum seed testing for export to Australia be performed only by authorized labs. CSP Labs is now one of the few recognized laboratories approved to test for ToMMV and ToBRFV.

Introducing AVITI and New HTS Services

Introducing High-Throughput Sequencing with the AVITI Sequencer, offering advanced, cost-effective solutions for plant health, breeding, and pathogen detection.

New Rice Blast Resistance Test Available

Now offering a cost-effective SNP-based test designed to detect rice-blast resistant Pi-Ta haplogroups, an important factor in rice-blast disease resistance.

Introducing Tales of a Phytopath

New blog series showcasing how our experts identify, analyze, and combat plant pathogens to protect agriculture—starting with our first post, Fusarium oxysporum f. sp. cannabis.

News & Information

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Our Testing Facilities

CSP Labs operates two strategic facilities to ensure consistent, high-quality testing services worldwide.

Our headquarters in Pleasant Grove, California, features cutting-edge labs, temperature-controlled incubation rooms, and extensive greenhouse space for advanced seed and plant health testing.

CSP Labs Asia, in Khon Kaen, Thailand, a seed industry hub, provides high-quality virus and pathogen testing, offering a convenient option for regional and offshore customers.

CSP Labs USA

Pleasant Grove, CA

3556 Sankey Rd.
Pleasant Grove, CA 95668
Tel: (916) 655-1581

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CSP Labs Asia

Khon Kaen, Thailand

310/5,M.3, T. Bantum
A. Muang Khonkaen
Khonkaen  40000
Tel: (+66) 043 001621

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