Author : Wiwut Daengsubha

Summary : Five hundred eighteen specimens of vegetable soft rot diseases were collected from 19 towns and 20 cities in 14 provinces in the islanf of Luzon, 5 in the Visayas and 8 in Mindanao. Of the more than 4,000 single bacterial colony inoculations made with isolated from these specimens, 80 isolates from 80 specimens were found plant pathogenic vegetable soft rotters. Detailed studies of the morphological, cultural, physiological and biochemical characteristics of the 80 isolates showed that 82.5 percent were Erwinia carotovora var. carotovora (Jones) Dye; 11.25 percent were Bacillus subtilis Cohn; 3.75 percent were Pseudomonas alliicola (Burkh) Starr and Burkh; and 1.25 percent were P. cepacia Burkh; a new species of non-motile xanthomonad, xanthomonas capsici n.sp. represented the remaining 1.25 percent of the total isolates.