Burrow, Jamie D., Diane B. Bright, Tim D. Riley, Evan G. Johnson, and James H. Graham. 2019. “Phytophthora Identification and Sampling in Citrus Nurseries: SL431/SS645, Rev. 7/2019”. EDIS 2019 (July). Gainesville, FL:2. https://doi.org/10.32473/edis-ss645-2019.