We are seeking four highly motivated PhD students to join our team as part of the interdisciplinary Oil-Clips program (
OIL-CLiPS - WUR), funded by Wageningen UR and its partners. The Oil-Clips program aims at unraveling the causes of disease outbreaks in oil palm plantations, focusing on Basal Stem Rot in Indonesia and Bud Rot in Colombia and how these are affected by changes in climate and farmer practices. These disease outbreaks are seen as an interplay between host, pathogen, human action, and environment. The recruited PhD candidates will investigate these relations by applying concepts and methods from at least two disciplines. This specific PhD project focusses on Bud Rot outbreaks in oil palm in Colombia. Research locations are Cenipalma in Colombia and Wageningen University in the Netherlands.
PhD 1: Standing strong together? The impact of collective disease management on plant pathogen epidemics. Bud Rot, caused by Phytophthora palmivora, is a devastating disease threatening oil palm plantations, particularly in Latin America. The disease is currently being managed with rigorous integrated pest management, including planting a partially resistant oil palm variety. However, these measures are not equally accessible to every grower, and the availability of a partially resistant oil palm variety can lead to a (false) sense of security. Because the pathogen is airborne, it can easily spread between neighbouring plots hence disease management on adjacent farms mutually affect each other.
You will monitor the spread and incidence of Bud Rot disease, comparing areas with local collective disease management with areas in which individual smallholders take different measures to prevent outbreaks within one region in Colombia. Based on this data, you will extend existing models that calculate the risk of Bud Rot outbreaks to include spillover effects between plots. In addition to performing field experiments and modelling, you will gather and interpret data about the social factors that may enable or constrain the strengthening of collective disease management. You will collaborate with two other PhD candidates, one that will focus on pathogen genetic diversity and coinfections and their impact on Bud Rot disease severity, and one that will focus on modelling the impact of climate change on Bud Rot outbreaks. The research may include possible comparisons with South-East Asia.
You will work here The research is embedded within the Laboratory of Phytopathology (
https://www.wur.nl/en/research-results/chair-groups/plant-sciences/centre-for-crop-systems-analysis.htm) led by Prof. Gert Kema, and within Cenipalma in Colombia (
https://www.cenipalma.org/). Your supervisor from Cenipalma is Dr. Mauricio Mosquera Montoya. Your co-promotors from Wageningen University & Research are Dr. Like Fokkens (Laboratory of Phytopathology) and Dr. Kees Jansen (Rural Sociology Group).