Johnson, E. G., Graham, J. H., & Morgan, K. T. (2019). 2019–2020 Florida Citrus Production Guide: Root Health Management: CMG15/CG094, rev. 3/2019. EDIS, 2019, 3. https://doi.org/10.32473/edis-cg094-2019 (Original work published January 31, 2019)