This paper will be of interest to agriculturalists, researchers and fieldworkers, and those working at the community and project level. It notes several misconceptions which limit researchers in their investigation of local knowledge concerning crop health. Farmers have many ways to assess and influence the health of a crop without explaining it in terms of a disease. It may often be useful to carry out a parallel study of the analytical principles in understanding personal health within the community, as this will shed light on health in the plant world.
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