Publications by topic

Subject: Climate change | Epidemiology & disease ecologyMicrobiomes & ecological genomics | Networks | Research for developmentSeed systems | Smart surveillance & mitigation

Plant system: Grasslands | Legumes | Maize | Potato & sweetpotato | Rice | Tropical fruit | Vegetables | Wheat

Microbial system: Bacteria | Fungi & oomycetes | Viruses

Region: Africa | Asia & Oceania | Latin America | USA


Bold = Member of Garrett Lab / * = Equivalent contributions

Dubois, T., B. Hadi, S. Vermeulen, P. Ballantyne, A. Dobermann, S. Fan, K. A. Garrett, N. Ibabao, A. Ismail, J. Jaramillo, A. M. Loboguerrero, S. McCutcheon, J. Njuki, T. R. Sharma, H. Tonnang, and V. Pede. 2024. Climate change and plant health: Impact, implications and the role of research for mitigation and adaptation. Global Food Security 41:100750. [open access link]

Etherton, B. A., R. A. Choudhury, R. I. Alcalá Briseño, R. A. Mouafo-Tchinda, A. I. Plex Sulá, M. Choudhury, A. Adhikari, S. L. Lei, N. Kraisitudomsook, J. Robledo Buritica, V. A. Cerbaro, K. Ogero, C. M. Cox, S. P. Walsh, J. Andrade-Piedra, B. A. Omondi, I. Navarrete, M. A. McEwan, and K. A. Garrett. 2024. Disaster plant pathology: Smart solutions for threats to global plant health from natural and human-driven disasters. Phytopathology 114:855-868. [open access link].

Plex Sulá, A. I., V. De Col, B. A. Etherton, Y. Xing, A. Agarwal, L. Ramić, E. Bonaiuti, M. Friedmann, C. Proietti, G. Thiele, and K. A. Garrett. 2024. What traits of collaboration networks are associated with project success? The case of two CGIAR agricultural research programs for development. Agricultural Systems 219:104013. [link - soon open access]

Alcalá Briseño, R. I., O. Batuman, J. Brawner, W. J. Cuellar, E. Delaquis, B. A. Etherton, R. D. French-Monar, J. F. Kreuze, I. Navarrete, K. Ogero, A. I. Plex Sulá, S. Yilmaz, and K. A. Garrett. 2023. Translating virome analyses to support biosecurity, on-farm management, and crop breeding. Frontiers in Plant Science 14:1056603. [open access link]

Etherton, B. A., R. A. Choudhury, R. I. Alcalá-Briseño, Y. Xing, A. I. Plex Sulá, D. Carrillo, J. Wasielewski, L. Stelinski, K. A. Grogan, F. Ballen, T. Blare, J. Crane, and K. A. Garrett. 2023. Are avocados toast? A framework to analyze decision-making for emerging epidemics, applied to laurel wilt. Agricultural Systems 206:103615. [open access link]

Martins, S. J., J. Pasche, H. A. O. Silva, G. Selten, N. Savastano, L. M. Abreu, H. Bais, K. A. Garrett, N. Kraisitudomsook, C. M. J. Pieterse, and T. Cernava. 2023. The use of synthetic microbial communities (SynComs) for plant health. Phytopathology 113:1369-1379. [open access link]

Poudel, R., A. Jumpponen, M. M. Kennelly, C. Rivard, L. Gomez-Montano, and K. A. Garrett. 2023. Integration of phenotypes in microbiome networks for designing synthetic communities: a study of mycobiomes in the grafted tomato system. Applied and Environmental Microbiology 89:e01843-22. [open access link]

Rich, S. N., R. L. Cook, C. N. Mavian, K. Garrett, E. C. Spencer, M. Salemi, and M. Prosperi. 2023. Network typologies predict future molecular linkages in the network of HIV transmission in Florida. AIDS 37:1739-1746. [open access link]

Saleh*, A. A., N. Kraisitudomsook*, E. E. Frank, S. P. Dendy, J. F. Leslie, and K. A. Garrett. 2023. Phytobiome stampede: Bison as potential dispersal agents for the tallgrass prairie microbiome. PhytoFrontiers 3:512-517. [open access link]

Savary, S., and Global Plant Health Assessment Project (including K. A. Garrett). 2023. A global assessment of the state of plant health. Plant Disease 107:3649-3665. [open access link]

Buddenhagen*, C. E., Y. Xing*, J. Andrade Piedra, G. A. Forbes, P. Kromann, I. Navarrete, S. Thomas-Sharma, R. A. Choudhury, K. F. Andersen Onofre, E. Schulte-Geldermann, B. A. Etherton, A. I. Plex Sulá, and K. A. Garrett. 2022. Where to invest project efforts for greater benefit: A framework for management performance mapping with examples for potato seed health. Phytopathology 112:1431-1443. [open access link]

Garrett, K. A., D. P. Bebber, B. A. Etherton, K. M. Gold, A. I. Plex Sulá, and M. G. Selvaraj. 2022. Climate change effects on pathogen emergence: artificial intelligence to translate big data for mitigation.  Annual Review of Phytopathology 60:357-378. [open access link]

Gullino, M. L., R. Albajes, I. Al-Jboory, F. Angelotti, S. Chakraborty, K. A. Garrett, B. P. Hurley, P. Juroszek, R. Lopian, K. Makkouk, X. Pan, M. Pugliese, and T. Stephenson.  2022. Climate change and pathways used by pests as challenges to plant health in agriculture and forestry. Sustainability 14:12421. [open access link]

Klein-Gordon, J. M., S. Timilsina, Y. Xing, P. Abrahamian, K. A. Garrett, J. B. Jones, G. E. Vallad, and E. M. Goss. 2022. Whole genome sequences reveal the Xanthomonas perforans population is shaped by the tomato production system. ISME Journal 16:591-601. [open access link]

Navarrete, I., V. López, R. Borja, P. Oyarzún, K. A. Garrett, C. J. M. Almekinders, Y. Xing, P. C. Struik, and J. L. Andrade-Piedra. 2022. Variety and on-farm seed management practices affect potato seed degeneration in the tropical highlands of Ecuador. Agricultural Systems 198:103387. [open access link]

Nduwimana, I., S. Sylla, Y. Xing, A. Simbare, C. Niyongere, K. A. Garrett, and B. A. Omondi. 2022. Banana seed exchange systems in Burundi – linking formal and informal systems. Outlook on Agriculture 51:334-348. [open access link]

Sharma, K., F. Iruegas-Bocardo, A. Abdurahman, R. I. Alcalá-Briseño, K. A. Garrett, E. M. Goss, G. Ngundo, J. Kreuze, and F. Munguti. 2022. The potato bacterial wilt pathogen exhibits high diversity and epidemic clonality of phylotype II sequevar 1 strains in Kenya. Phytopathology 112:2072-2083. [open access link].

Stofer, K. A., J. Fulton, H. Nesbitt, A. Prizzia, K. A. Garrett, and J. J. Rosario. 2022. Initial social network analysis of producers working towards sustainability suggests weak ties and potential fragmentation. Advancements in Agricultural Development 3:4-18.

Andersen Onofre, K. F., G. A. Forbes, J. Andrade-Piedra, C. E. Buddenhagen, J. C. Fulton, M. Gatto, Z. Khidesheli, R. Mdivani, Y. Xing, and K. A. Garrett. 2021. An integrated seed health strategy and phytosanitary risk assessment: potato in the Republic of Georgia. Agricultural Systems 191:103144. [open access link]

Asseng, S., C. Palm, J. Anderson, L. Fresco, P. Sanchez, F. Asche, T. Garlock, J. Fanzo, M. Smith, G. Knapp, A. Jarvis, A. Adesogan, I. Capua, G. Hoogenboom, D. D. Despommier, L. Conti, and K. A. Garrett. 2021. Implications of new technologies for future food supply systems. The Journal of Agricultural Science 159:315-319. [open access link]

Choudhury, R. A., H. L. Er, M. Hughes, J. Smith, G. Pruett, J. Konkol, R. Ploetz, J. Marois, K. A. Garrett, and A. H. C. van Bruggen. 2021. Host density dependence and environmental factors affecting laurel wilt invasion. Plant Pathology 70:676-688. [link]

Garrett, K. A. 2021. Impact network analysis and the INA R package: Decision support for regional management interventions. Methods in Ecology and Evolution 12:1634-1647. [open access link]

Klein-Gordon, J., Y. Xing, K. A. Garrett, P. Abrahamian, M. L. Paret, G. V. Minsavage, A. L. Strayer-Scherer, J. Fulton, S. Timilsina, J. B. Jones, E. M. Goss, and G. E. Vallad. 2021. Assessing changes and associations in the Xanthomonas perforans population across Florida commercial tomato fields via a state-wide survey. Phytopathology 111:1029-1041. [open access link]

McEwan, M. A., C. J. M. Almekinders, J.L. Andrade-Piedra, E. Delaquis, K. A. Garrett, L. Kumar, S. Mayanja, B. A. Omondi, S. Rajendran, and G. Thiele. 2021. “Breaking through the 40% adoption ceiling: Mind the seed system gaps.” A perspective on seed systems research for development in One CGIAR. Outlook on Agriculture 50:5-12. [open access link]

Poudel, M., R. Mendes, L. A. S. Costa, C. G. Bueno, Y. Meng, S. Y. Folimonova, K. A. Garrett and S. J. Martins. 2021. The role of plant-associated bacteria, fungi, and viruses in drought stress mitigation. Frontiers in Microbiology 12:743512. [open access link]

Ristaino, J. B., P. Anderson, D. Bebber, K. A. Brauman, N. J. Cunniffe, N. Fedoroff, C. Finegold, K. A. Garrett, C. A. Gilligan, C. Jones, M. Martin, G. K. MacDonald, P. Neenan, A. Records, D. Schmale, L. Tateosian, and Q. Wei. 2021. The persistent threat of emerging plant disease pandemics to global food security.  Proceedings of the National Academy of Sciences 118:e2022239118 [link] [Washington Post coverage]

Alcalá-Briseño, R. I., K. Casarrubias-Castillo, D. López-Ley, K. A. Garrett, and L. Silva-Rosales. 2020. Network analysis of the papaya orchard virome from two agroecological regions of Chiapas, Mexico. mSystems 5:e00423-19. [open access link]

Fayette, J., S. Bec, S. Loubeau, J. C. Fulton, K. A. Garrett, and C. L. Harmon. 2020. First report of Lasiodiplodia hormozganensis causing fruit rot of eggplant in Haiti. [Disease Note] Plant Disease 104:592. [open access link]

Fulton, J. C., S. Bec, J. Fayette, R. C. Ploetz, K. A. Garrett, and C. L. Harmon. 2020. First report of plantain soft rot caused by Klebsiella variicola in Haiti. [Disease Note] Plant Disease 104:1851. [open access link]

Fulton*, J. C., J. M. Klein*, S. Bec, J. Fayette, K. A. Garrett, J. B. Jones, S. Timilsina, and C. L. Harmon. 2020. Draft genome sequences of plant-pathogenic Klebsiella variicola strains isolated from plantain in Haiti. Microbiology Resource Announcements 9:e00336-20. [open access link]

Garrett, K. A., R. I. Alcalá-Briseño, K. F. Andersen, J. Brawner, R. A. Choudhury, E. Delaquis, J. Fayette, R. Poudel, D. Purves, J. Rothschild, I. M. Small, S. Thomas-Sharma, and Y. Xing.  2020.  Effective altruism as an ethical lens on research priorities.  Phytopathology 110:708-722. [open access link]

Hatfield, J. L., J. Antle, K. A. Garrett, R. C. Izaurralde, T. Mader, E. Marshall, M. Nearing, G. P. Robertson, and L. Ziska. 2020. Indicators of climate change in agricultural systems. Climatic Change 163:1719-1732. [open access link]

Liang, X., F. Li, S. Wang, G. Hua, M. He, G. Tian, S. Khan, R. Poudel, and K. A. Garrett. 2020.  A rice variety with a high straw biomass retained nitrogen and phosphorus without affecting soil bacterial species.  Soil Ecology Letters 2:131-144. [link]

Narouei-Khandan, H. A., S. K. Shakya, K. A. Garrett, E. M. Goss, N. S. Dufault, J. L. Andrade-Piedra, S. Asseng, D. Wallach, and A. H. van Bruggen. 2020. BLIGHTSIM: A new potato late blight model simulating the response of Phytophthora infestans to diurnal temperature and humidity fluctuations in relation to climate change. Pathogens 9:659. [open access link]

Xing*, Y.J. Hernandez Nopsa*, K. F. Andersen, J. Andrade-Piedra, F. Beed, G. Blomme, M. Carvajal Yepes, D. Coyne, W. Cuellar, G. Forbes, J. Kreuze, J. Kroschel, L. Kumar, J. Legg, M. Parker, E. Schulte-Geldermann, K. Sharma, and K. A. Garrett. 2020. Global cropland connectivity: A risk factor for invasion and saturation by emerging pathogens and pests. BioScience 70:744-758. [open access link]

Andersen, K. F., C. E. Buddenhagen, P. Rachkara, R. Gibson, S. Kalule, D. Phillips, and K. A. Garrett. 2019. Modeling epidemics in seed systems and landscapes to guide management strategies: The case of sweetpotato in Northern Uganda. Phytopathology 109:1519-1532.  [open access link]

Ascunce, M. S., Keumchul Shin, J. C. Huguet-Tapia, R. Poudel, K. A. Garrett, A. H. C. van Bruggen, and E. M. Goss. 2019. Penicillin trunk injection affects bacterial community structure in citrus trees. Microbial Ecology 78:457-469. [link]

Bell, T. H., K. Hockett, R. I. Alcalá-Briseño, M. Barbercheck, G. A. Beattie, M. A. Bruns, J. Carlson, T. Chung, A. Collins, B. Emmett, P. Esker, K. A. Garrett, L. Glenna, B. K. Gugino, M. d. M. Jimenez Gasco, L. Kinkel, J. Kovac, K. Kowalski, G. Kuldau, J. Leveau, M. Michalska-Smith, J. Myrick, K. Peter, M. V. Salazar, A. Shade, N. Stopnisek, X. Tan, A. Welty, K. Wickings, and E. Yergeau. 2019. Manipulating wild and tamed phytobiomes: challenges and opportunities. Phytobiomes Journal 3:3-21. [open access link]

Bennett, A. E., K. Preedy, A. Golubski, J. Umbanhowar, S. R. Borrett, L. Byrne, K. Apostol, J. D. Bever, L. Biederman, A. T. Classen, K. Cuddington, M.-A. de Graaff, K. A. Garrett, L. Gross, A. Hastings, J. D. Hoeksema, V. Hrynkiv, J. Karst, M. Kummel, C. T. Lee, C. Liang, W. Liao, K. Mack, L. Miller, B. Ownley, C. Rojas, E. L. Simms, V. K. Walsh, M. Warren, and J. Zhu. 2019. Beyond the black box: promoting mathematical collaborations for elucidating interactions in soil ecology. Ecosphere 10:e02799. [open access link]

Carvajal-Yepes, M., K. Cardwell, A. Nelson, K. A. Garrett, B. Giovani, D. G. O. Saunders, S. Kamoun, J. P. Legg, V. Verdier, J. Lessel, R. A. Neher, R. Day, P. Pardey, M. L. Gullino, A. R. Records, B. Bextine, J. E. Leach, S. Staiger, and J. Tohme. 2019. A global surveillance system for crop diseases. Science 364:1237-1239. [link]

Ogero, K., J. Kreuze, M. McEwan, N. Luambano, H. Bachwenkizi, K. A. Garrett, K. F. Andersen, S. Thomas-Sharma, and R. A. A. van der Vlugt.  2019.  Efficiency of insect-proof net tunnels in reducing virus-related seed degeneration in sweetpotato. Plant Pathology 68:1472-1480. [open access link]

Poudel, R., A. Jumpponen, M. M. Kennelly, C. Rivard, L. Gomez-Montano and K. A. Garrett. 2019. Rootstocks shape the rhizobiome: Rhizosphere and endosphere bacterial communities in the grafted tomato system. Applied and Environmental Microbiology 85:e01765-18. [link]

Asche, F., T. M. Garlock, J. L. Anderson, S. R. Bush, M. D. Smith, C. M. Anderson, J. Chu, K. A. Garrett, A. Lem, K. Lorenzen, A. Oglend, S. Tveteras, and S. Vannuccini. 2018. Three pillars of sustainability in fisheries. Proceedings of the National Academy of Sciences 15:11221-11225. [link]

Delaquis, E., K. F. Andersen, N. Minato, C. T. L. Thuy, M. E. Karssenberg, S. Sophearith, K. A. G. Wyckhuys, J. Newby, D. D. Burra, P. Srean, I. Phirun, L. D. Niem, P. T. Nhan, K. A. Garrett, C. J. M. Almekinders, P. C. Struik, and S. de Haan. 2018. Raising the stakes: cassava seed networks at multiple scales in Cambodia and Vietnam.  Frontiers in Sustainable Food Systems 2:73. [open access link]

Garrett, K. A., R. I. Alcalá-Briseño, K. F. Andersen, C. E. Buddenhagen, R. A. Choudhury, J. C. Fulton, J. F. Hernandez Nopsa, R. Poudel, and Y. Xing. 2018. Network analysis: A systems framework to address grand challenges in plant pathology.  Annual Review of Phytopathology 56: 559-580. [open access link]

Savary, S., A. D. Nelson, A. Djurle, P. D. Esker, A. Sparks, L. Amorim, A. Bergamin Filho, T. Caffi, N. Castilla, and K. Garrett. 2018. Concepts, approaches, and avenues for modelling crop health and crop losses. European Journal of Agronomy 100:4-18. [link]

Ziska, L.H., B. A. Bradley, R. D. Wallace, C. T. Bargeron, J. H. LaForest, R. A. Choudhury, K. A. Garrett, and F. E. Vega. 2018. Climate change, carbon dioxide, and pest biology, managing the future: Coffee as a case study. Agronomy 8:152. [open access link]

Buddenhagen*, C. E.,  J. F. Hernandez Nopsa*K. F. Andersen, J. Andrade-Piedra, G. A. Forbes, P. Kromann, S. Thomas-Sharma, P. Useche, and K. A. Garrett. 2017. Epidemic network analysis for mitigation of invasive pathogens in seed systems: Potato in Ecuador.  Phytopathology 107:1209-1218. [open access link]

Choudhury, R. A., K. A. Garrett, S. J. Klosterman, K. V. Subbarao, and N. McRoberts.  2017.  A framework for optimizing phytosanitary thresholds in seed systems. Phytopathology 107:1219-1228. [open access link]

Dendy, S. P., B. Tong, H. A. Alexander, P. A. Fay, L. Murray, Y. Xing, and K.  A. Garrett. 2017. A long-term study of burning effects on a plant pathogen in tallgrass prairie. Plant Pathology 66:1308-1317. [link]

Garrett, K. A., K. F. Andersen, F. Asche, R. L. Bowden, G. A. Forbes, P. A. Kulakow, and B. Zhou. 2017. Resistance genes in global crop breeding networks. Phytopathology 107:1268-1278. [open access link] [interactive interface for exploring model behavior]

Hilker, F. M., L. J. S. Allen, V. A. Bokil, C. J. Briggs, Z. Feng, K. A. Garrett, L. J. Gross, F. M. Hamelin, M. J. Jeger, C. A. Manore, A. G. Power, M. G. Redinbaugh, M. A. Rúa and N. J. Cunniffe.  2017. Modelling virus coinfection to inform management of maize lethal necrosis in Kenya.  Phytopathology 107:1095-1108. [open access link] [in the news]

Hondrade*, R. F., E. Hondrade*, L. Zheng*, F. Elazegui, J. Duque, C. C. Mundt, C. M. Vera Cruz, and K. A. Garrett. 2017. Cropping system diversification for food production in Mindanao rubber plantations: A rice cultivar mixture and rice intercropped with mungbean. PeerJ 5:e2975. [open access link]

Ploetz, R. C., P. E. Kendra, R. A. Choudhury, J. A. Rollins, A. Campbell, K. Garrett, M. Hughes, and T. Dreaden. 2017. Laurel wilt in natural and agricultural ecosystems: understanding the drivers and scales of complex pathosystems. Forests 8:48. [open access link]

Savary, S., S. Bregaglio, L. Willocquet, D. Gustafson, D. M. D’Croz, A. Sparks, N. Castilla, A. Djurle, C. Allinne, M. Sharma, V. Rossi, L. Amorim, A. Bergamin, J. Yuen, P. Esker, N. McRoberts, J. Avelino, E. Duveiller, J. Koo, and K. Garrett. 2017. Crop health and its global impacts on the components of food security. Food Security 9:311–327. [link]

Thomas-Sharma, S., J. Andrade-Piedra, M. Carvajal Yepes, J. Hernandez Nopsa, M. Jeger, R. Jones, P. Kromann, J. Legg, J. Yuen, G. A. Forbes, and K. A. Garrett. 2017. A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops. Phytopathology 107:1123-1135. [open access link]  [Interactive interface for exploring model behavior]

Poudel, R., A. Jumpponen, D. C. Schlatter, T. C. Paulitz, B. McSpadden Gardener, L. L. Kinkel, and K. A. Garrett.  2016.  Microbiome networks: A systems framework for identifying candidate microbial assemblages for disease management.  Phytopathology 106:1083-1096. [open access link]

Sanatkar, M. R., W. N. White, B. Natarajan, C. Scoglio, and K. A. Garrett. 2016. Epidemic threshold of an SIS model in dynamic switching networks. IEEE Transactions on Systems, Man, and Cybernetics 46:345-55. [link]

Thomas-Sharma, S., A. Abdurahman, S. Ali, J. L. Andrade-Piedra, S. Bao, A. O. Charkowski, D. Crook, M. Kadian, P. Kromann, P. C. Struik, L. Torrance, K. A. Garrett, and G. A. Forbes. 2016. Seed degeneration in potato: the need for an integrated seed health strategy to mitigate the problem in developing countries.  Plant Pathology 65:3-16. [link] [CGIAR press release]

Hernandez Nopsa, J. F., G. J. Daglish, D. W. Hagstrum, J. F. Leslie, T. W. Phillips, C. Scoglio, S. Thomas-Sharma, G. H. Walter, and K. A. Garrett. 2015. Ecological networks in stored grain: identifying key nodes for emerging pests and mycotoxins in postharvest networks.  BioScience 65:985-1002. [open access link] [UF press release] [UF/IFAS FAES High Impact Award winner]

Sanatkar, M. R., C. Scoglio, B. Natarajan, S. Isard, and K. A. Garrett. 2015. History, epidemic evolution, and model burn-in for a network of annual invasion: Soybean rust. Phytopathology 105:947-955. [open access link]

Alexander, H. M., K. E. Mauck, A. E. Whitfield, K. A. Garrett, and C. M. Malmstrom. 2014. Plant-virus interactions and the agro-ecological interface. European Journal of Plant Pathology 138:529-547. [link]

Gray, M. M., P. St Amand, N. M. Bello, M. B. Galliart, M. Knapp, K. A. Garrett, T. J. Morgan, S. G. Baer, B. R. Maricle, E. D. Akhunov, and L. C. Johnson.  2014.  Ecotypes of an ecologically dominant prairie grass (Andropogon gerardii) exhibit genetic divergence across the US Midwest grasslands’ environmental gradient.  Molecular Ecology 23:6011-6028. [link]

Scherm, H., C. S. Thomas, K. A. Garrett, and J. M. Olsen. 2014. Meta-analysis and other approaches for mining and synthesizing structured and unstructured data in plant pathology. Annual Review of Phytopathology 52:453-476. [link]

Sparks, A. H., G. A. Forbes, R. J. Hijmans, and K. A. Garrett. 2014. Climate change may have limited effect on the global risk of potato late blight. Global Change Biology 20:3621-3631. [link]

Cox, C. M., W. W. Bockus, R. D. Holt, L. Fang, and K. A. Garrett. 2013. The spatial connectedness of plant species: Potential links for apparent competition via plant diseases. Plant Pathology 62:1195-1204. [link]

Garrett, K. A. 2013. Big data insights into pest spread [invited commentary]. Nature Climate Change 3:955-957. [link]

Garrett, K. A., A. Dobson, J. Kroschel, B. Natarajan, S. Orlandini, H. E. Z. Tonnang, and C. Valdivia. 2013. The effects of climate variability and the color of weather time series on agricultural diseases and pests, and decision making for their management. Agricultural and Forest Meteorology 170:216-227. [link]

Gomez-Montano, L., A. Jumpponen, M. A. Gonzales, J. Cusicanqui, C. Valdivia, P. Motavalli, M. Herman, and K. A. Garrett. 2013. Do bacterial and fungal communities in soils of the Bolivian Altiplano change under shorter fallow periods? Soil Biology & Biochemistry 65:50-59. [link] [Supplemental materials, including beautiful photos] [Associated R scripts]

Skelsey, P., K. A. With, and K. A. Garrett. 2013. Why dispersal should be maximized at intermediate scales of heterogeneity. Theoretical Ecology 6:203-211. [open access link]

Skelsey, P., K. A. With, and K. A. Garrett. 2013. Pest and disease management: Why we shouldn’t go against the grain. PLoS ONE 8:e75892. [open access link]

Garrett, K. A. 2012. Information networks for plant disease: Commonalities in human management networks and within-host signaling networks. [Invited] European Journal of Plant Pathology 133:75-88. [link]

Garrett, K. A., A. Jumpponen, C. Toomajian, and L. Gomez-Montano. 2012. Climate change and plant health: Designing research spillover from plant genomics for understanding the role of microbial communities. [Invited] Canadian Journal of Plant Pathology 34:349-361. [link]

Sutrave, S., C. Scoglio, S. A. Isard, J. M. S. Hutchinson, and K. A. Garrett. 2012. Identifying highly connected counties compensates for resource limitations when evaluating national spread of an invasive pathogen. PLoS ONE 7:e37793. [open access link]

Borer, E. T., J. Antonovics, L. L. Kinkel, P. J. Hudson, P. Daszak, M. J. Ferrari, K. A. Garrett, C. R. Parrish, A. F. Read, and D. M. Rizzo. 2011. Bridging taxonomic and disciplinary divides in infectious disease. EcoHealth 8:261-267. [open access link]

Garrett, K. A., G. A. Forbes, S. Savary, P. Skelsey, A. H. Sparks, C. Valdivia, A. H. C. van Bruggen, L. Willocquet, A. Djurle, E. Duveiller, H. Eckersten, S. Pande, C. Vera Cruz, and J. Yuen. 2011. Complexity in climate change impacts: A framework for analysis of effects mediated by plant disease. Plant Pathology 60:15-30. [link]

Rouse, M. N., A. A. Saleh, A. Seck, K. H. Keeler, S. E. Travers, S. H. Hulbert, and K. A. Garrett. 2011. Genomic and resistance gene homolog diversity of the dominant tallgrass prairie species across the U.S. Great Plains precipitation gradient. PLoS ONE 6:e17641. [open access link]

Savary, S., A. Nelson, A. H. Sparks, L. Willocquet, E. Duveiller, G. Mahuku, G. Forbes, K. A. Garrett, D. Hodson, J. Padgham, S. Pande, M. Sharma, J. Yuen, A. Djurle. 2011. International agricultural research tackling the effects of global and climate changes on plant diseases in the developing world. Plant Disease 95:1204-1216. [open access link]

Sparks, A. H., G. A. Forbes, R. J. Hijmans, and K. A. Garrett. 2011. A metamodeling framework for extending the application domain of process-based ecological models. Ecosphere 2:art90. [open access link]

Perez, P., C. Nicklin, O. Dangles, S. Vanek, S. Sherwood, S. Halloy, K. Garrett, and G. Forbes. 2010. Climate change in the High Andes: Implications and adaptation strategies for small-scale farmers. The International Journal of Environmental, Cultural, Economic and Social Sustainability 6:71-88. [link]

Saleh, A. A., H. U. Ahmed, T. C. Todd, S. E. Travers, K. A. Zeller, J. F. Leslie, and K. A. Garrett. 2010. Relatedness of Macrophomina phaseolina isolates from tallgrass prairie, maize, soybean, and sorghum. Molecular Ecology 19:79-91. [link]

Travers, S. E., Z. Tang, D. Caragea, K. A. Garrett, S. H. Hulbert, J. E. Leach, J. Bai, A. Saleh, A. K. Knapp, P. A. Fay, J. Nippert, P. S. Schnable, and M. D. Smith. 2010. Variation in gene expression of Andropogon gerardii in response to altered environmental conditions associated with climate change. Journal of Ecology 98:374-383. [Editor’s choice]

Webb, K. M., I. Oña, J. Bai, K. A. Garrett, T. Mew, C. M. Vera Cruz, and J. E. Leach. 2010. A benefit of high temperature: Increased effectiveness of a rice bacterial blight disease resistance gene. New Phytologist 185:568-576. [link]

Yin, C., K. L. Jones, D. E. Peterson, K. A. Garrett, S. H. Hulbert, and T. C. Paulitz. 2010. Members of soil bacterial communities sensitive to tillage and crop rotation. Soil Biology & Biochemistry 42:2111-2118. [link]

Cheatham, M. R.*, M. N. Rouse*, P. D. Esker, S. Ignacio, W. Pradel, R. Raymundo, A. H. Sparks, G. A. Forbes, T. R. Gordon, and K. A. Garrett. 2009. Beyond yield: Plant disease in the context of ecosystem services. Phytopathology 99:1228-1236. [open access link]

Garrett, K. A., L. N. Zúñiga, E. Roncal, G. A. Forbes, C. C. Mundt, Z. Su, and R. J. Nelson. 2009. Intraspecific functional diversity in hosts and its effect on disease risk across a climatic gradient. Ecological Applications 19:1868-1883. [link]

Margosian, M. L., K. A. Garrett, J. M. S. Hutchinson, and K. A. With. 2009. Connectivity of the American agricultural landscape: Assessing the national risk of crop pest and disease spread. BioScience 59:141-151. [open access link]

Worapong, J., S. P. Dendy, Z. Tang, D. J. Awl, and K. A. Garrett. 2009. Limiting temperatures for urediniospore germination are low in a systemic rust fungus of tallgrass prairie. Mycologia 101:390-394. [link]

Chakraborty, S., J. Luck, G. Hollaway, A. Freeman, R. Norton, K. A. Garrett, K. Percy, A. Hopkins, C. Davis, and D. F. Karnosky. 2008. Impacts of global change on diseases of agricultural crops and forest trees. CAB Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources 3, No. 054.

Han, X., S. P. Dendy, K. A. Garrett, L. Fang, and M. D. Smith. 2008. Comparison of damage to native and exotic tallgrass prairie plants by natural enemies. Plant Ecology 198:197-210. [link]

Bockus, W. W., Z. Su, K. A. Garrett, B. S. Gill, J. P. Stack, R. L. Bowden, A. K. Fritz, K. L. Roozeboom, and T. J. Martin. 2007. Number of experiments needed to determine wheat disease phenotypes for four wheat diseases. Plant Disease 91:103-108. [open access link]

Milliken, G. A., K. A. Garrett, and S. E. Travers. 2007. Experimental design for two-color microarrays applied in a pre-existing split-plot experiment. Statistical Applications in Genetics and Molecular Biology 6, Article 20. [link]

Travers, S. E., M. D. Smith, J. Bai, S. H. Hulbert, J. E. Leach, P. S. Schnable, A. K. Knapp, G. Milliken, P. Fay, A. Saleh, and K. A. Garrett. 2007. Ecological genomics: making the leap from model systems in the lab to native populations in the field. Frontiers in Ecology and the Environment 5:19-24. [link]

Garrett, K. A., S. P. Dendy, E. E. Frank, M. N. Rouse, and S. E. Travers. 2006. Climate change effects on plant disease: Genomes to ecosystems. Annual Review of Phytopathology 44:489-509. [link]

Garrett, K. A., S. H. Hulbert, J. E. Leach, and S. E. Travers. 2006. Ecological genomics and epidemiology. European Journal of Plant Pathology 115:35-51. [link]

Al-Naimi, F. A., K. A. Garrett, and W. W. Bockus. 2005. Competition, facilitation, and niche differentiation in two foliar pathogens. Oecologia 143:449-457. [link]

Cox, C. M., K. A. Garrett, and W. W. Bockus. 2005. Meeting the challenge of disease management in perennial grain systems. Renewable Agriculture and Food Systems 20:15-24. [link]

Cox, C. M., K. A. Garrett, T. S. Cox, W. W. Bockus, and T. Peters. 2005. Reactions of perennial grain accessions to four major cereal pathogens of the Great Plains. Plant Disease 89:1235-1240. [open access link]

Jiang, W., K. A. Garrett, D. E. Peterson, T. L. Harvey, R. L. Bowden, and L. Fang. 2005. The window of risk for emigration of Wheat streak mosaic virus varies with host eradication method. Plant Disease 89:853-858. [open access link]

Cox, C. M., K. A. Garrett, R. L. Bowden, A. K. Fritz, S. P. Dendy, and W. F. Heer. 2004. Cultivar mixtures for the simultaneous management of multiple diseases: Tan spot and leaf rust of wheat. Phytopathology 94:961-969. [open access link]

Garrett, K. A., S. P. Dendy, A. G. Power, G. K. Blaisdell, H. A. Alexander, and J. K. McCarron. 2004. Barley yellow dwarf disease in natural populations of dominant tallgrass prairie species in Kansas [Disease Note]. Plant Disease 88:574. [open access link]

Garrett, K. A., M. Kabbage, and W. W. Bockus. 2004. Managing for fine-scale differences in inoculum load: Seeding patterns to minimize loss to wheat take-all. Precision Agriculture 5:291-301. [link]

Garrett, K. A., L. V. Madden, G. Hughes, and W. F. Pfender. 2004. New applications of statistical tools in plant pathology. Phytopathology 94:999-1003. [open access link]

Ortiz, O., K. A. Garrett, J. J. Heath, R. Orrego, and R. J. Nelson. 2004. Management of potato late blight in the Andean highlands: Evaluating the benefits of Farmer Participatory Research and Farmer Field Schools. Plant Disease 88:565-571. [open access link]

Rosenberg, M. S., K. A. Garrett, Z. Su, and R. L. Bowden. 2004. Meta-analysis in plant pathology: Methods for research synthesis. Phytopathology 94:1013-1017. [open access link]

Garrett, K. A. and R. L. Bowden. 2002. An Allee effect reduces the invasive potential of Tilletia indica. Phytopathology 92:1152-1159. [open access link]

Mundt, C. C., C. Cowger, and K. A. Garrett. 2002. Relevance of integrated disease management to resistance durability. Euphytica 124:245-252. [link]

Garrett, K. A., R. J. Nelson, C. C. Mundt, G. Chacón, R. E. Jaramillo, and G. A. Forbes. 2001. The effects of host diversity and other management components on epidemics of potato late blight in the humid highland tropics. Phytopathology 91:993-1000. [open access link]

Garrett, K. A., and C. C. Mundt. 2000. Effects of planting density and the composition of wheat cultivar mixture on stripe rust: An analysis taking into account limits to the replication of controls. Phytopathology 90:1313-1321. [open access link]

Garrett, K. A., and C. C. Mundt. 2000. Host diversity can reduce potato late blight severity for focal and general patterns of primary inoculum. Phytopathology 90:1307-1312. [open access link]

Hijmans, R. J., K. A. Garrett, Z. Huamán, D. P. Zhang, M. Schreuder, and M. Bonierbale. 2000. Assessing the geographic representativeness of germplasm collections: the case of the Bolivian wild potato genebank. Conservation Biology 14:1755-1765. [link]

Garrett, K. A., and C. C. Mundt. 1999. Epidemiology in diverse host populations. Phytopathology 89:984-990. [open access link]

Garrett, K. A., and P. M. Dixon. 1998. When does the spatial pattern of weeds matter? Predictions from neighborhood models. Ecological Applications 8:1250-1259. [link]

Garrett, K. A., and H. F. Schwartz. 1998. Epiphytic populations of Pseudomonas syringae on dry beans treated with copper-based bactericides. Plant Disease 82:30-35. [open access link]

Garrett, K. A., and P. M. Dixon. 1997. Environmental pseudointeraction: The effects of ignoring the scale of environmental heterogeneity in competition studies. Theoretical Population Biology 51:37-48. [link]

Garrett, K. A. 1997. Use of statistical tests of equivalence (bioequivalence tests) in plant pathology. Phytopathology 87:372-374. [open access link]

Garrett, K. A. 1995. Selecting a method for sampling weed densities: The case of weed removal in strips. Weed Science 43:394-401. [link]

VanGessel, M. J., E. E. Schweizer, K. A. Garrett, and P. Westra. 1995. Influence of weed density and distribution on corn (Zea mays) yield. Weed Science 43:215-218. [link]

Dixon, P. M., and K. A. Garrett. 1993. Sampling ecological information: Choice of sample size, reconsidered. Ecological Modelling 68:67-73. [link]


Garrett, K. A., P. D. Esker, and A. H. Sparks. 2007. An introduction to the R programming environment. The Plant Health Instructor. DOI:10.1094/PHI-A-2007-1226-02. Available at

Sparks, A. H., P. D. Esker, M. Bates, W. Dall’Acqua, Z. Guo, V. Segovia, S. D. Silwal, S. Tolos, and K. A. Garrett. 2008. Ecology and epidemiology in R: Disease progress over time. The Plant Health Instructor. DOI:10.1094/PHI-A-2008-0129-02. Available at

Esker, P. D., A. H. Sparks, G. Antony, M. Bates, W. Dall’Acqua, E. E. Frank, L. Huebel, V. Segovia, and K. A. Garrett. 2007. Ecology and epidemiology in R: Modeling dispersal gradients. The Plant Health Instructor. DOI:10.1094/PHI-A-2007-1226-03. Available at

Sparks, A. H., P. D. Esker, G. Antony, L. Campbell, E. E. Frank, L. Huebel, M. N. Rouse, B. Van Allen, and K. A. Garrett. 2008. Ecology and epidemiology in R: Spatial pattern analysis. The Plant Health Instructor. DOI:10.1094/PHI-A-2008-0129-03. Available at

Esker, P. D., A. H. Sparks, L. Campbell, Z. Guo, M. N. Rouse, S. D. Silwal, S. Tolos, B. Van Allen, and K. A. Garrett. 2008. Ecology and epidemiology in R: Disease forecasting and validation. The Plant Health Instructor. DOI:10.1094/PHI-A-2008-0129-01. Available at

Garrett, K. A., P. D. Esker, A. H. Sparks, and L. Scharmann. 2007. Writing teaching documents as a class project. The Plant Health Instructor. DOI: 10.1094/PHI-T-2007-1226-01.  Available at


IPPC Secretariat. 2021. Scientific review of the impact of climate change on plant pests – A global challenge to prevent and mitigate plant pest risks in agriculture, forestry and ecosystems. Rome. FAO on behalf of the IPPC Secretariat. (Drafting authors: M. L. Gullino, R. Albajes, I. Al-Jboory, F. Angelotti, S. Chakraborty, K. A. Garrett, B. P. Hurley, P. Juroszek, K. Makkouk, X. Pan, T. Stephenson)

Rosegrant, M. W., J. Koo, N. Cenacchi, C. Ringler, R. Robertson, M. Fisher, C. Cox, K. Garrett, N. D. Perez, and P. Sabbagh. 2014. Food Security in a World of Natural Resource Scarcity. International Food Policy Research Institute, Washington, DC.

Walthall, C.L., J. Hatfield, P. Backlund, L. Lengnick, E. Marshall, M. Walsh, S. Adkins, M. Aillery, E.A. Ainsworth, C. Ammann, C.J. Anderson, I. Bartomeus, L.H. Baumgard, F. Booker, B. Bradley, D.M. Blumenthal, J. Bunce, K. Burkey, S.M. Dabney, J.A. Delgado, J. Dukes, A. Funk, K. Garrett, M. Glenn, D.A. Grantz, D. Goodrich, S. Hu, R.C. Izaurralde, R.A.C. Jones, S-H. Kim, A.D.B. Leaky, K. Lewers, T.L. Mader, A. McClung, J. Morgan, D.J. Muth, M. Nearing, D.M. Oosterhuis, D. Ort, C. Parmesan, W.T. Pettigrew, W. Polley, R. Rader, C. Rice, M. Rivington, E. Rosskopf, W.A. Salas, L.E. Sollenberger, R. Srygley, C. Stöckle, E.S. Takle, D. Timlin, J.W. White, R. Winfree, L. Wright-Morton, L.H. Ziska. 2013. Climate Change and Agriculture in the United States: Effects and Adaptation. USDA Technical Bulletin 1935. Washington, DC. 186 pages. This report is available at:

User Guides

Garrett, K. A. 2021. User guide to impact network analysis (INA). CGIAR Research Program on Roots, Tubers and Bananas (RTB). RTB User Guide. No. 2021-4. Lima, Peru. [open access link]

Garrett, K. A., and Y. Xing. 2021. User guide to the seedHealth model as part of the integrated seed health approach. CGIAR Research Program on Roots, Tubers and Bananas (RTB). RTB User Guide. No. 2021-5. Lima, Peru. [open access link]

Andrade-Piedra, J. L., C. J. M. Almekinders, M. A. McEwan, F. B. M. Kilwinger, S. Mayanja, L. Mulugo, E. Delaquis, K.A. Garrett, A. B. Omondi, S. Rajendran, P. L. Kumar and G. Thiele. 2020. User guide to the toolbox for working with root, tuber and banana seed systems. CGIAR Research Program on Roots, Tubers and Bananas (RTB), Lima, Peru. [open access link]


National Climate Roadmap Working Group (including K. Garrett). 2023. National Climate Change Roadmap: A Research Framework for U.S. Agriculture, Forestry, and Working Lands. Colorado Agricultural Experiment Station. Mountain Scholar. 56 pp. [open access link]

Andrade-Piedra, J. L., K. A. Garrett, E. Delaquis, C. J. Almekinders, M. A. McEwan, F. Kilwinger, S. Mayanja, L. Mulugo, I. Navarrete, A. B. Omondi, S. Rajendran, and P. L. Kumar. 2022. Toolbox for Working with Root, Tuber, and Banana Seed Systems. Pages 319-352 in Root, Tuber and Banana Food System Innovations. G. Thiele, M. Friedmann, H. Campos, V. Polar, and J. W. Bentley, editors. Springer, Cham. [open access link]

Garrett, K. A., M. Nita, E. D. De Wolf, P. D. Esker, L. Gomez-Montano, and A. H. Sparks. 2021. Plant pathogens as indicators of climate change. Chapter 24 in Climate Change, Third Edition. T. Letcher, editor. Elsevier.

Garrett, K. A., R. I. Alcalá-Briseño, K. F. Andersen, R. A. Choudhury, W. Dantes, J. Fayette, J. C. Fulton, R. Poudel, and C. G. Staub. 2020. Adapting disease management systems under global change. In: A. Records and J. B. Ristaino (Editors), Emerging Plant Diseases and Global Food Security. American Phytopathological Society Press, St. Paul, Minnesota.

Beed, F., A. Benedetti, G. Cardinali, S. Chakraborty, T. Dubois, K. Garrett and M. Halewood. 2015. Climate change and micro-organism genetic resources for food and agriculture: State of knowledge, risks and opportunities. In Food and Agriculture Organization of the United Nations, and available at

van Bruggen, A. H. C., J. W. Jones, J. M. C. Fernandes, K. A. Garrett, K. J. Boote. 2015. Crop Diseases and Climate Change in the AgMIP Framework.  In Handbook of Climate Change and Agroecosystems: The Agricultural Model Intercomparison and Improvement Project (AgMIP) Integrated Crop and Economic Assessments. ICP Series on Climate Change Impacts, Adaptation, and Mitigation.

Garrett, K. A., P. D. Esker, and A. H. Sparks. 2014. An introduction to key distributions and models for epidemiology using R. In Exercises in Plant Disease Epidemiology, 2nd Edition. K. Stevenson and M. Jeger, eds. APS Press, Minneapolis, MN.

Garrett, K. A., S. Thomas-Sharma, G. A. Forbes, and J. Hernandez Nopsa. 2014. Climate change and plant pathogen invasions. In Invasive Species and Climate Change. L. Ziska and J. Dukes, eds. CABI Publishing.

Hernandez Nopsa, J., S. Thomas-Sharma, and Garrett, K. A. 2014. Climate change and plant disease. In Encyclopedia of Agriculture and Food Systems. N. Van Alfen, ed. Elsevier.

Porter, J. R., L. Xie (Coordinating Lead Authors); A. Challinor, K. Cochrane, M. Howden, M. M. Iqbal, D. Lobell, M. I. Travasso (Lead Authors); N. Chhetri, K. Garrett, J. Ingram, L. Lipper, N. McCarthy, J. McGrath, D. Smith, P. Thornton, J. Watson, L. Ziska (Contributing Authors); P. Aggarwal, K. Hakala (Review Editors); J. Jordan (Volunteer Chapter Scientist). 2014. IPCC WGII AR5 Chapter 7. Food Security and Food Production Systems.

Ringler, C., N. Cenacchi, J. Koo, R. Robertson, M. Fisher, C. Cox, N. Perez, K. Garrett, and M. Rosegrant. 2014. Sustainable Agricultural Intensification: The Promise of Innovative Farming Practices. Pages 43-51 in 2013 Global Food Policy Report. International Food Policy Research Institute, Washington, DC.

Garrett, K. A., G. A. Forbes, L. Gomez, M. A. Gonzales, M. Gray, P. Skelsey, and A. H. Sparks. 2013. Cambio climático, enfermedades de las plantas e insectos plaga. Pages 71-98 in Cambio climático en los Andes. E. Jimenez, ed.

Beed, F., A. Benedetti, G. Cardinali, S. Chakraborty, T. Dubois, K. Garrett and M. Halewood. 2011. Climate change and micro-organism genetic resources for food and agriculture: State of knowledge, risks and opportunities. Food and Agriculture Organization of the United Nations. , and available at

Garrett, K. A., A. Jumpponen, and L. Gomez Montano. 2010. Emerging plant diseases: What are our best strategies for management? Pages 152-160 in Controversies in Science and Technology, Vol. 3, From Evolution to Energy. Editors E. L. Kleinman, J. A. Delborne, K. A. Cloud-Hansen, and J. Handelsman. Liebert Publishers, New Rochelle, New York.

Gadbury, G. L., K. A. Garrett, and D. B. Allison. 2009. Challenges and approaches to statistical design and inference in high dimensional investigations. Pages 181-206 in Plant Systems Biology, Methods in Molecular Biology Series. D. A. Belostotsky, editor. Humana Press, Totowa, New Jersey.

Garrett, K. A., M. Nita, E. D. De Wolf, L. Gomez, and A. H. Sparks. 2009. Plant pathogens as indicators of climate change. Pages 425-437 in Climate and Global Change: Observed Impacts on Planet Earth. T. Letcher, editor. Elsevier.

Garrett, K. A. 2008. Climate change and plant disease risk. Pages 143-155 in Global Climate Change and Extreme Weather Events: Understanding the Contributions to Infectious Disease Emergence. National Academies Press, Washington, D.C.

Garrett, K. A. and C. M. Cox. 2008. Applied biodiversity science: Managing emerging diseases in agriculture and linked natural systems using ecological principles. Pages 368-386 in Infectious Disease Ecology: Effects of Ecosystems on Disease and of Disease on Ecosystems. R. Ostfeld, F. Keesing, and V. Eviner, editors. Princeton University Press.

Garrett, K. A. and S. P. Dendy. 2002. Prácticas culturales para el manejo del tizón tardío de la papa. [Cultural practices for late blight management.] Pages 111-120 in Complementando la Resistencia al Tizón (Phytophthora infestans) en los Andes. E. N. Fernández-Northcote, editor. Global Initiative for Late Blight, Lima, Peru.

Dixon, P. M., and K. A. Garrett. 1994. Statistical Issues for Field Experimenters. Pages 439-450 in Wildlife Toxicology and Population Modeling: Integrated Studies of Agroecosystems. R. J. Kendall and T. E. Lacher, Jr., editors. Lewis Publishers, Boca Raton.


Garrett, K. A. 2010. Review of ‘A Practical Guide to Ecological Modelling. Using R as a Simulation Platform’ by Soetaert and Herman. Quarterly Review of Biology 85:492.


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