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College of Agriculture & Life Sciences
Department of Plant Pathology and Microbiology
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      • B.S. Bioenvironmental Sciences
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Extension Plant Pathology & Microbiology (ExtPLPM)

In the Dept of Plant Pathology & Microbiology (PLPM), certain faculty and staff members have appointments with the Texas A&M Agrilife Extension Service. These members are tasked with the AgriLife Extension mission to improve lives with innovative, science-based solutions and education to Texas and beyond. These specialists play a pivotal role in providing plant health & plant disease diagnostics support and protect Texas plant and natural resources. These specialized plant health support are extended to our clientele who includes other AgriLife faculty, county extension agents, federal plant health partners, producers and growers, and more. Additionally, Extension PLPM specialists conduct applied research activities to find solutions to clientele needs and to promote adoption of these solutions.

Check out the following resources for more information on plant diseases!

Texas Plant Disease Handbook
ExtPLPM factsheets and other resources on AgriLife Learn

Learn about all of our exciting achievements in extension!

Annual Summary Highlight and Achievements of ExtPLPM 2021
Annual Summary Highlight and Achievements of ExtPLPM 2022

Texas Plant Clinics

In 1957, Dr. Harlan Smith – the Texas A&M Extension plant pathologist started a plant disease diagnostic service to provide support to growers/farmers. In 1982, this service was formalized and the Texas Plant Disease Diagnostic Lab was established with Dr. Larry Barnes as its first director. Today, ExtPLPM has 3 functional services labs located throughout the state of Texas. The main hub lab is the Texas Plant Disease Diagnostic Lab located on the campus of Texas A&M University in College Station, TX. The Texas High Plain Plant Disease Diagnostic Lab is located at the Texas A&M AgriLife Research & Extension Center in Amarillo, TX. The Texas Plant Virus Diagnostic Lab is located at the Texas A&M Research & Extension Center in Weslaco,TX.

For assistance with plant health issues, please first contact your local Texas A&M AgriLife Extension Service office.

A table set up with Texas Plant Disease Diagnostic Lab information.

TX Plant Disease Diagnostic Lab at Texas A&M College Station (TPDDL-CS)

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Located in College Station, the Texas Plant Disease Diagnostic Laboratory (TPDDL-CS) is a Texas A&M AgriLife Extension Service lab managed by the Department of Plant Pathology and Microbiology at Texas A&M University. This laboratory provides plant disease diagnostic service to AgriLife Extension personnel, homeowners, farmers, greenhouse and nursery producers, landscape contractors, interiorscapers, arborists, consultants, and any other group or individual needing accurate identification of plant disease problems. The TPDDL strives to provide the most accurate and rapid plant disease diagnosis together with recommendations for effective plant disease management.

Learn more about TPDDL-CS
Sample Submission Forms

TX High Plains Plant Disease Diagnostic Lab in Amarillo (THPPDDL)

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The Texas High Plains Plant Disease Diagnostic Laboratory is located at the Texas A&M AgriLife Research & Extension Center in Amarillo. The THPPDDL specialized in disease diagnostics of small grains and row crops (including hemp).

Learn more about THPPDDL

TX Plant Virus Diagnostic Lab in Weslaco (TPVDL)

TPVDL operates as a closed laboratory, primarily engaged in contract work facilitated through referrals from or through the Texas Department of Agriculture (TX Dept of Ag) and/or the United States Department of Agriculture’s Animal and Plant Health Inspection Service (USDA-APHIS). This lab provide support for the identification of emerging and exotic viruses to protect our agriculture and natural resources (biosecurity).

Extension Internship Opportunities for Students

Students working in a classroom lab.

Summer Research and Extension Experience for Undergraduates at the Interface of Plant, Microbial and Bioenvironmental Sciences

2023 IPMB REEU will be structured so that students can transition from directed to independent research and extension activities. The intellectual focus for our IPMB REEU program is on the interface between plants (key crops), microbes (fungi, bacteria, and viruses), and the environment (soil, water, and pollutants). Our REEU will be composed of two major phases: (a) a 10-week summer experience at TAMU and (b) the long-term tracking of students upon return to their home universities and during the pursuit of their graduate or professional careers.

Learn more about IPMB REEU
Multiple people standing in a paddy field.

SCARLET Program

The Student Careers in Agricultural Research, Learning and Extension Training (SCARLET) program is a federally funded internship opportunity for undergraduate students (sophomore, junior, and senior). The program includes training with a mentor. You will be able to expand your skills while learning side by side each mentor’s team. SCARLET also offers a series of workshops and seminars to help you improve your resume and to help you expand your career options. The SCARLET team of mentors will select 10 participants for 2024.

Learn more about the SCARLET Program

Contact an Extension Specialist

  • Adams, Stephanie

    Stephanie Adams

    Assistant Professor and Extension Specialist

    979--458-6370

    [email protected]

    PLPM 213F

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    Olufemi Alabi

    Professor and Extension Specialist

    Focus: Etiology, diagnostics, epidemiology and management of plant virus and virus-like diseases

    956-968-5585

    [email protected]

    2401 E. Hwy. 83, Weslaco, TX 78596

  • Anderson, Nolan

    Nolan Anderson

    Assistant Professor

    Focus: Small grain diseases

    (806) 755-5600

    [email protected]

    6500 Amarillo Blvd. W., Amarillo, TX 78406-1412

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    Kimberly Cochran

    Associate Professor and Extension Specialist

    Focus: Sesame, vegetable (leafy greens) and youth (STEM) outreach

    830-278-9151, ext. 230

    [email protected]

    1619 Garner Field Rd., Uvalde, TX 78801

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    Thomas Isakeit

    Professor and Extension Specialist, Field Crops

    Focus: Diseases of field crops and vegetables

    979-862-1340

    [email protected]

    113F PLPM

  • Jo, Young-Ki

    Young-Ki Jo

    Professor and Extension Specialist

    Focus: Diseases of turfgrass, rice and pecan

    979-862-1758

    [email protected]

    113D PLPM

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    Ken Obasa

    Assistant Professor and Extension Specialist

    Focus: Diseases of small grains and field crops

    806-677-5616

    [email protected]

    6500 Amarillo Blvd. W., Amarillo, TX 78406-1412

  • Ong, Kevin

    Kevin Ong

    Professor and Associate Department Head (Extension)

    Focus: Plant Disease Diagnostics, Diseases of ornamentals and fruits

    979-845-4751

    [email protected]

    304 PLPM

  • Rondon, Marina

    Marina Rondon

    Assistant Professor and Extension Specialist

    806-723-8416

    [email protected]

    Texas A&M AgriLife Research & Extension Center, Lubbock, TX. - 1102 E. Drew Street. Lubbock, TX 79403

  • Uribe, Pedro

    Pedro Uribe

    Extension Program Specialist

    Focus: Tactical-Science, plant health surveillance

    (979) 845-8282

    [email protected]

    321 PLPM

Learn About Plant Pathology and Microbiology Research

The Department of Plant Pathology and Microbiology balances the need of a land-grant institution to solve immediate agricultural problems and investigate basic biologic principles. The department encompasses projects that attack applied problems like plant disease control with both classical and modern approaches.

Learn more about Plant Pathology and Microbiology Research
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496 Olsen Blvd. TAMU 2132, College Station, TX 77843-2132
(979) 845-7311
Department of Plant Pathology and Microbiology

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