Technical Abstract: Xanthomonas citri subsp citri (Xcc), which causes citrus canker, is a major pathogen of grapefruit and other canker-susceptible citrus species and cultivars grown in Florida and elsewhere. It is dispersed by rain splash, and wind promotes the dispersal of the pathogen. The aim of this study was to explore the relationships between wind speed and the number of bacteria dispersed downwind to different heights at different distances. Wind (up to 20 m s-1) was generated using a fan, and rain simulated using sprayer nozzles. Negative exponential models described the relationship between height and the bacteria flux density (BFD, bacteria cm-2 min-1), with a rapid decline in mean the BFD of Xcc collected at greater heights (P = <0.0001-0.3838, R2= 0.56 - 1.00). A power model described the relationship between distance and BFD of Xcc collected at most heights and wind speeds (P=0.049 - <0.0001, R2 = 0.78-1.00). A multiple regression analysis based on wind speed, height and distance suggested predictability of the proportion of the total BFD of Xcc collected downwind of the simulated wind-rain system (F=49, P<0.0001, R2= 0.46). Disease management aimed at reducing sources of inoculum, and wind speeds to reduce dispersal of inoculum within orchards, is discussed.