Pseudomonas viridiflava:Causal Agent of Bacterial Leaf Blight of Tomato

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Abstract
A leaf spot disease of tomato was observed in several fields near Bradenton, Florida [USA] in the late winter and early spring of 1983. A fluorescent bacterium identified as P. viridiflava was isolated consistently. In controlled-environment chambers, the disease developed only when plants were water-soaked by misting before and after inoculation or where wounds were inoculated. The bacterium apparently is an opportunistic parasite that attacks plants stressed by unfavorable environmental conditions.