Current and projected regional risk of potato late blight in the tropics
We are evaluating the risk of potato late blight now and under climate change scenarios to evalute the benefits
of management approaches such as deployment of resistant varieties. We are working to improve
concepts for mapping disease risk, such as incorporating a risk neighborhood.
These projects are supported by a USAID linkage with the International Potato Center
Collaborators on these projects include:
Greg Forbes, International Potato Center
Karen Garrett, Kansas State University
Adam Sparks, Kansas State University
Graham Thiele, International Potato Center
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. 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.
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]
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]
O. Ortiz, 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.
[PDF]
K. A. Garrett 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.
[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. Host diversity can reduce potato late blight severity
for focal and general patterns of primary inoculum. Phytopathology 90:1307-1312.
[PDF]
R. J. Hijmans, 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.
[PDF]
K. A. Garrett and C. C. Mundt. 1999. Epidemiology in diverse host populations.
Phytopathology 89:984-990. [PDF]