Serious outbreak of Xanthomonas vesicatoria on sweet pepper in Florida (US)
During winter 1997-1998, a widespread and serious outbreak of Xanthomonas vesicatoria (EPPO A2 quarantine pest) occurred in commercial fields of sweet pepper (Capsicum annuum) in Southern Florida (US). This was the first serious outbreak since the 1993-1994 season. Studies showed that 73.3 % of the isolates collected in infected crops belonged to race 6 and 10.2% to race 2. It is thought that this outbreak could be due to an unusually wet winter and selection pressure resulting from widespread planting of pepper cultivars resistant to race 1, 2 and 3.
Sources
Pernezny, K.; Collins, J.; Stall, R.E.; Shuler, K.; Datnoff, L.E. (1999) A serious outbreak of race 6 of Xanthomonas campestris pv. vesicatoria on pepper in Southern Florida.
Plant Disease, 83(1), p 79.