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Projects :

• Screening of Acacia koa germplasms for resistance to koa wilt
• Survey and management of fungal tomato diseases
• Exploring fungal threats and biocontrol strategies for macadamia nuts
• Fungal ID and disease diagnostics

Courses:

PEPS 430: Plant Disease Epidemiology and Management
PEPS 605: Biology of Plant Pathogens: Fungi and Nematodes
PEPS 615L: Diagnosis and Management of Tropical Plant Diseases Laboratory
PEPS 660: Seminar in Plant Pathology

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Research Publications

• Ojo OF, Lynch K, and Luis JM. 2026. First report of anthracnose caused by Colletotrichum tropicale on ferns Reholttumia hudsoniana, Ctenitis latifrons, Cibotium menziesii, and Cibotium chamissoi in Hawaii. Plant Disease, First Look published online. https://doi.org/10.1094/PDIS-12-25-2464-PDN 
• Caligayahan SE, Marquez J, and Luis JM. 2025. First Report of Colletotrichum sansevieriae causing anthracnose on snake plant (Dracaena trifasciata) in Hawaii. Plant Disease 109:2609.
• Luis JM, Johnson LD, Vega-Vasquez P, Ristroph K, and Hoagland LA. 2025. Use of cinnamon essential oil nanoemulsion to manage gray mold in tomato. Plant Disease, First Look published online. https://doi.org/10.1094/PDIS-02-25-0261-RE 
• Paudel R., Achyut A., Braley L., Luis J.M., Silva J., and Wang K.H. 2025. First report of Fusarium wilt of Brassica juncea caused by Fusarium commune in Hawai’i. Plant Disease 109:2218. 
• Luis JM, Jaiswal A, Mengiste T, and Hoagland L. 2025. Deciphering the mechanisms that regulate variability in induced systemic resistance responsiveness by beneficial soil microbe in tomato. Phytopathology 115:771-782.
• Webster RW, Nicolli C, Allen TW, Bish MD, Bissonnette K, Check JC, Chilvers MI, Duffeck MR, Kleczewski N, Luis JM, Mueller BD, Paul PA, Price PP, Robertson AE, Ross TJ, Schmidt C, Schmidt R, Schmidt T, Shim S, Telenko DEP, Wise K, and Smith DL. 2023. Uncovering the environmental conditions required for Phyllachora maydis  infection and tar spot development on corn in the United States for use as predictive models for future epidemics. Scientific Reports 13:17064.
• Luis JM, Mehl HL, Plewa DE, and Kleczewski NM. 2023. Is Microdochium maydis associated with necrotic lesions in the tar spot disease complex? A culture based survey of maize in Mexico and the Midwest United States. Phytopathology 113:1890-1897.
• Luis JM, Carbone I, Mack BM, Lebar MD, Cary JW, Gilbert MK, Bhatnagar D, Wientjes CC, Payne GA, Moore GG, Ameen YO and Ojiambo PS. 2022. Female fertility influences metabolomic and transcriptomic profiles during sexual reproduction in Aspergillus flavus. Fungal Biology 126:187-200.
• Luis JM, Ng SJ, Bergstrom G, Bissonnette K, Bowen K, Bradley C, Byamukama E, Chilvers M, Collins A, Cowger C, Darby H, DeWolf E, Dill Macky R, Esker P, Friskop A, Kleczewski N, Koehler A, Langston D, Madden L, Marshall J, Mehl H, Moraes W, Nagelkirk M, Rawat N, Smith D, Telenko D, Wegulo S, Young-Kelly H and Paul P. 2020. Fusarium Head Blight Management Coordinated Project: Integrated Management Trials 2018-2020. In: Canty S, Hoffstetter A, and Dill-Macky A (Eds). Proceedings of the 2020 National Fusarium Head Blight Forum. East Lansing, MI: U.S. Wheat & Barley Scab Initiative, pp. 38-43.
• Luis JM, Ng SJ, Bergstrom G, Bissonnette K, Bowen K, Bradley C, Byamukama E, Chilvers M, Collins A, Cowger C, Darby H, DeWolf E, Dill Macky R, Esker P, Friskop A, Kleczewski N, Koehler A, Langston D, Madden L, Marshall J, Mehl H, Moraes W, Nagelkirk M, Rawat N, Smith D, Telenko D, Wegulo S, Young-Kelly H and Paul P. 2020. Fusarium Head Blight Management Coordinated Project: Uniform Fungicide Trials 2018-2020. In: Canty S, Hoffstetter A, and Dill-Macky A (Eds). Proceedings of the 2020 National Fusarium Head Blight Forum. East Lansing, MI: U.S. Wheat & Barley Scab Initiative, pp. 44-48.
• Luis JM, Carbone I, Payne GA, Bhatnagar D, Cary JW, Moore GG, Lebar MD, Wei Q, Mack B and Ojiambo PS. 2020. Morphological changes within stromata during sexual reproduction in Aspergillus flavus. Mycologia 112:908-920.
• Lewis MH, Carbone I, Luis JM, Payne GA, Bowen KL, Hagan AK, Kemerait RC, Heiniger R and Ojiambo PS. 2019. Biocontrol strains differentially shift the genetic structure of indigenous soil populations of Aspergillus flavus. Frontiers in Microbiology 10:1738.
• Luis JM, Ozias-Akins P, Holbrook CC, Kemerait RC Jr, Snider JL and Liakos V. 2016. Phenotyping peanut genotypes for drought tolerance. Peanut Science 43:36-48. 
• Luis JM and Kemerait RC. 2015. Assessment of the sensitivity and accuracy of immuno-chromatographic test strips in the qualitative detection of aflatoxin contamination in peanuts. Peanut Science 42:49-55.

Extension Publications

• Caligayahan SES, Uyeda JY, and Luis JMS. 2025. Foliar and seedborne fungal pathogens of tomato in Hawai'i. Hanai'Ai Newsletter Volume 59. https://gms.ctahr.hawaii.edu/gs/handler/getmedia.ashx?moid=74354&dt=3&g=12
  
• Ojo O, Luis M, and Marquez J. 2025. Aroid leaf rust. HDOA New Pest Advisory No. 25-01. https://dab.hawaii.gov/pi/files/2025/08/New-Pest-Advisory-Pseudocerradoa-paullula-No.-25-01-Revision.pdf
• Webster RW, Nicolli C, Allen TW, Bish MD, Bissonnette K, Check JC, Chilvers MI, Duffeck MR, Kleczewski N, Luis JM, Mueller BD, Paul PA, Price PP, Robertson AE, Ross TJ, Schmidt C, Schmidt R, Schmidt T, Shim S, Telenko DEP, Wise K, and Smith DL. 2023. Tar spot prediction in corn: the weather matters. Crop Protection Network 5012. https://cropprotectionnetwork.org/publications/tar-spot-prediction-in-corn-the-weather-matters