Peter Ojiambo
North Carolina State University · Plant Pathology
Active 1998–2026
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About
Peter Ojiambo is a Professor and Director of International Programs in the Department of Entomology and Plant Pathology at North Carolina State University. His research interests encompass botanical epidemiology and the integrated management of plant diseases, with a focus on understanding the basic biology and ecology of plant pathogens. He employs mathematical, statistical, and computer models to describe the dynamics of plant diseases in space and time, aiming to develop management decisions based on risk assessment and outbreak prediction. His work bridges botanical epidemiology and pathogen population genetics, emphasizing the importance of understanding environmental factors, pathogen populations, host resistance, and cropping practices in disease management. Ojiambo's laboratory utilizes advanced statistical and ecological techniques, computer technology, and large weather and disease databases to create decision-support tools for disease control. He has contributed to ongoing research projects such as developing spatially explicit network models for epidemic spread, characterizing epidemic dynamics across landscapes, and assessing ecological spillovers affecting disease dissemination. His educational background includes a B.S. and M.S. in Agriculture and Plant Pathology from the University of Nairobi, Kenya, and a Ph.D. in Plant Pathology from the University of Georgia. He has published extensively on plant disease epidemiology, management strategies, and the…
Research topics
- Biology
- Microbiology
- Botany
- Internal medicine
- Statistics
- Biochemistry
- Horticulture
- Medicine
- Biotechnology
- Mathematics
Selected publications
A Global Assessment of the State of Plant Health
Plant Disease · 2023-05-13 · 23 citations
articleOpen accessThe Global Plant Health Assessment (GPHA) is a collective, volunteer-based effort to assemble expert opinions on plant health and disease impacts on ecosystem services based on published scientific evidence. The GPHA considers a range of forest, agricultural, and urban systems worldwide. These are referred to as (Ecoregion × Plant System), i.e., selected case examples involving keystone plants in given parts of the world. The GPHA focuses on infectious plant diseases and plant pathogens, but enc…
Frontiers in Microbiology · 2022-11-24 · 18 citations
articleOpen accessAflatoxins, produced by several Aspergillus section Flavi species in various crops, are a significant public health risk and a barrier to trade and development. In sub-Saharan Africa, maize and groundnut are particularly vulnerable to aflatoxin contamination. Aflasafe, a registered aflatoxin biocontrol product, utilizes atoxigenic A. flavus genotypes native to Nigeria to displace aflatoxin producers and mitigate aflatoxin contamination. Aflasafe was evaluated in farmers’ fields for 3 years, unde…
Phytopathology · 2020 · 16 citations
Senior authorCorresponding= 0.0269). In the meta-regression models, dose and time explained 0 and 16% of the variance in true effects, respectively. In meta-regression models with a continuous variable of dose or time, a categorical variable of target or genus and their interaction term, genus and target explained an additional 7 to 19% of the variance in true effects. These results show that although the current recommended dose and contact time for commercial bleach products are expected to result in effective disinfes…
Mycologia · 2020 · 15 citations
Senior authorCorresponding.
Phytopathology · 2022-04-06 · 11 citations
articleSenior authorIn the United States, the cucurbit downy mildew pathogen, Pseudoperonospora cubensis, has been shown to form oospores under laboratory conditions, but there are no reports on the formation of oospores in naturally infected cucurbit plants in the field. This study investigated the occurrence of oospores in naturally infected leaves from cucurbit fields in North Carolina and South Carolina from 2018 to 2020. Oospore viability and survival was also determined outdoors during the winter in North Car…
Frequent coauthors
- 43 shared
Anna Thomas
- 40 shared
Christina Cowger
North Carolina State University
- 39 shared
L. M. Quesada-Ocampo
Plant (United States)
- 32 shared
K. N. Neufeld
Bayer (Germany)
- 32 shared
Richard Nyankanga
University of Nairobi
- 30 shared
A. Lebeda
Palacký University Olomouc
- 29 shared
Todd C. Wehner
North Carolina State University
- 29 shared
M. K. Hausbeck
Michigan State University
Labs
Entomology and Plant PathologyPI
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