Epidemic waves, landscape heterogeneity, and spatial scale

These projects are supported by NSF EID

Collaborators on these projects include:

Paul Esker, Kansas State University and Iowa State University
Karen Garrett, Kansas State University
Chris Mundt, Oregon State Unviersity
Kim With, Kansas State University
X. B. Yang, Iowa State University

Relevant Publications

In review. S. Chakraborty, J. Luck, G. Hollaway, A. Freeman, R. Norton, K. A. Garrett, K. Percy, A. Hopkins, C. Davis, and D. F. Karnosky. Impacts of global change on diseases of agricultural crops and forest trees.

In review. M. R. Cheatham, 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. Beyond yield: Plant disease in the context of ecosystem services.

In review. C. M. Cox, K. A. Garrett, W. W. Bockus, and L. Fang. The response of dominant grass species in tallgrass prairie to tan spot and take-all pathogens isolated from wheat.

In review. G. L. Gadbury, K. A. Garrett, and D. B. Allison. Challenges and approaches to statistical design and inference in high dimensional investigations.

In review. K. A. Garrett, S. E. Travers, G. A. Milliken, J. Bai, S. H. Hulbert, J. E. Leach, P. S. Schnable, A. Saleh, J. L. Roe, P. A. Fay, A. K. Knapp, Z. Tang, and M. D. Smith. Gene expression in the wild: Analyzing genome-wide expression in field experiments with natural populations.

In review. K. A. Garrett, L. N. Zúñiga, E. Roncal, G. A. Forbes, C. C. Mundt, Z. Su, and R. J. Nelson. The effects of host biodiversity on disease across a climatic gradient.

In review. M. L. Margosian, K. A. Garrett, J. M. S. Hutchinson, and K. A. With. Connectivity of the American agricultural landscape: Assessing the national risk of crop pest and disease spread.

In review. J. Worapong, S. P. Dendy, D. J. Awl, and K. A. Garrett. Limiting temperatures for urediniospore germination are low in a systemic rust fungus of tallgrass prairie.

G. A. Forbes, N. J. Grunwald, E. S. G. Mizubuti, J. L. Andrade-Piedra, and K. A. Garrett. 2008. Potato late blight in developing countries. Chapter in Current Concepts in Potato Disease Management. R. D. Peters, editor. In press.

K. A. Garrett. 2008. Climate change and plant disease risk. In Global Climate Change and Extreme Weather Events: Understanding the Potential Contributions to the Emergence, Reemergence and Spread of Infectious Disease. National Academy of Science, Institute of Medicine. In revision.

K. A. Garrett 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. [preprint PDF]

X. Han, 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. In press.

K. A. Garrett, 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 http://www.apsnet.org/education/AdvancedPlantPath/Topics/RModules/doc0

A. H. Sparks, 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 http://www.apsnet.org/education/AdvancedPlantPath/Topics/RModules/doc1

P. D. Esker, 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 http://www.apsnet.org/education/AdvancedPlantPath/Topics/RModules/doc2

A. H. Sparks, 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 http://www.apsnet.org/education/AdvancedPlantPath/Topics/RModules/doc3

P. D. Esker, 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 http://www.apsnet.org/education/AdvancedPlantPath/Topics/RModules/doc4

K. A. Garrett, 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 http://www.apsnet.org/education/InstructorCommunication/TeachingArticles/Garrett

W. W. Bockus, 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. [PDF]

G. A. Milliken, 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. Available at http://www.bepress.com/sagmb/vol6/iss1/art20 [PDF]

S. E. Travers, 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. [PDF]

K. A. Garrett, 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. [PDF]

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

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

C. M. Cox, 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. [PDF]

W. Jiang, 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. [PDF]

C. M. Cox, 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. [PDF]

K. A. Garrett, 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. [link]

K. A. Garrett, 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. [PDF]

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

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

K. A. Garrett, 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. [PDF]

K. A. Garrett 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. [PDF]

K. A. Garrett 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. [PDF]

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

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

K. A. Garrett 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.

M. J. VanGessel, E. E. Schweizer, K. A. Garrett, and P. Westra. 1995. Influence of weed densities and spatial patterns on corn yield. Weed Science 43:215-218.

Kansas State University

Department of Plant Pathology

Ecological Genomics Institute

PI: Karen A. Garrett