Spatial dynamics and control of a crop pathogen with mixed-mode transmission
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
PLOS Computational Biology
Abstract
Trade or sharing that moves infectious planting material between farms can, for verticallytransmitted
plant diseases, act as a significant force for dispersal of pathogens, particularly
where the extent of material movement may be greater than that of infected vectors or inoculum.
The network over which trade occurs will then effect dispersal, and is important to
consider when attempting to control the disease. We consider the difference that planting
material exchange can make to successful control of cassava brown streak disease, an
important viral disease affecting one of Africa's staple crops. We use a mathematical model
of smallholders' fields to determine the effect of informal trade on both the spread of the
pathogen and its control using clean-seed systems, determining aspects that could limit the
damage caused by the disease. In particular, we identify the potentially detrimental effects
of markets, and the benefits of a community-based approach to disease control.
Description
Keywords
Spatial dynamics, Crop pathogen, Transmission
Citation
McQuaid CF, van den Bosch F, Szyniszewska A, Alicai T, Pariyo A, Chikoti PC, et al. (2017) Spatial dynamics and control of a crop pathogen with mixed-mode transmission. PLoS Comput Biol 13(7): e1005654. https://doi.org/ 10.1371/journal.pcbi.1005654