Plant Disease Testing
Protect Your Crops with Expert Disease Diagnosis and Management
Healthy crops are the backbone of your agricultural success, but multiple plant pathogenic organisms can pose a threat. These harmful pathogens—including fungi, bacteria, viruses, and nematodes—can cause a range of damaging symptoms such as blight, cankers, root rot, wilting, stunting, leaf curling, and more.
Because different pathogens can produce similar symptoms, accurate identification is essential for effective treatment. At CAD, our team of plant disease experts utilizes advanced diagnostic techniques to pinpoint the exact cause of your crop health issues. With this precise insight, you can make informed management decisions, minimize crop loss, and ensure a healthy, productive harvest.
Protect your crops today with the trusted expertise of CAD — your partner in plant health and disease management.
Seed Health Testing
Healthy Seeds. Stronger Crops. Higher Yields.
PlantPathLab (California Agri Diagnostics) Now NSHS Accredited Lab
The foundation of a healthy crop starts with the quality of your seeds. Unfortunately, seed-borne diseases can silently impact your harvest before the first shoots emerge. These pathogens can infect plants early, leading to poor crop establishment, stunted growth, and reduced yields.
At PlantPathLab, we offer comprehensive Seed Health Testing to detect harmful pathogens before they compromise your planting. Our testing services help you identify seed-borne and seed-transmitted diseases, enabling you to take preventive action and reduce disease risk from the start.
For information on how to submit a sample Click Below
Soil & Water Testing
Protect Your Crops from Hidden Threats Beneath the Surface
Some plant pathogens can survive not only in plants, but also in soil and water. Crops can become diseased if planted in soil or water containing these pathogens. Thus, knowing the status of your soil and water is essential for maintaining crop health and yield.
At PlantPathLab (California Agri Diagnostics), we can test soil and water samples for the presence of bacterial and fungal pathogens. Common soil and water pathogens include, but are not limited to::
Our methods of detection include selective media plating, identifying morphological characteristics under the microscope, PCR, RT-PCR. Pathogens can be sequenced for species identification.
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Nematode Testing
Plant parasitic nematodes are recognized as major agricultural pathogens and are known to attack plants and cause crop losses throughout the world. We use the Baermann Funnel method to extract live nematodes and identify them by studying the morphological characters. Further identification down to the species level can be performed via PCR and sequencing.
For information on how to submit a sample Click Below;
Microbial Activity Analysis
Microorganisms are present in virtually all environments and are typically the first organisms to react to chemical and physical changes in the environment. Changes in microbial communities are often a precursor to changes in the health and viability of the environment as a whole. At PlantPathLab we can profile these microorganisms and how they change over time using Biolog EcoPlates.
Biolog EcoPlates have been found to provide a sensitive and reliable index of environmental change. Each plate measures the metabolism of 31 carbon sources per assay, and each assay panel tests in triplicate per plate. This approach, called community-level physiological profiling, has been demonstrated to be effective at distinguished spatial and temporal changes in microbial communities. These 31 carbon sources are repeated 3 times to give more replicates of the data. Communities of organisms will give a characteristic reaction pattern called a metabolic fingerprint. These fingerprint reaction patterns rapidly and easily provide a vast amount of information from a single plate.
For information on how to submit a sample Click Below;
Grapevine Disease Testing
Protect Your Vines. Preserve Your Harvest.
Agriculture Products
In the world of viticulture, grapevine diseases are a constant and costly threat. Caused by fungi, bacteria, and viruses, these pathogens can significantly impact both yield and grape quality, putting entire harvests—and profits—at risk.
At PlantPathLab (California Agri Diagnostics), we specialize in early detection and diagnosis of grapevine diseases, helping vineyard owners, nursery operators, and wine producers safeguard their vines and ensure a healthy, high-quality crop. Our advanced testing methods include PCR, RT-PCR, microscopy, and culture-based techniques, ensuring accurate and timely results to guide your vineyard management decisions.
Our diagnostic services cover a wide range of common and economically important grapevine diseases, including:
- Powdery Mildew (Erysiphe necator)
- Downy Mildew (Plasmopara viticola)
- Botrytis Bunch Rot (Botrytis cinerea)
- Pierce’s Disease (Xylella fastidiosa)
- Crown Gall (Agrobacterium vitis)
- Leafroll Virus Complex (GLRaV-1, -2, -3)
- Red Blotch Virus (GRBV)
- Black Rot, Anthracnose