Procedure for multiple pathogen/disease survey using census-travel model risk output. (a) Global disease distribution for citrus black spot, citrus HLB and citrus canker. (b–d) Individual risk maps for Florida introduction in 2010. (e) Expert opinion scores on suitability for spread, vector prevalence (if applicable), reproduction rate (R0), detection and confirmation inefficiency, control cost(s) and yield reduction/crop damage for each disease (score ranking: 1, low; 5, high). (f) Combined overall risk map used for survey prioritization. For visualization, risks are summarized at 1 mi2 to meet US regulatory agency survey implementation requirements.