Abstract
Change in population of Xanthomonas oryzae and the concentration of techlofthalam in a guttation droplet on rice leaves sprayed with techlofthalam [N-(2, 3-dichlorophenyl)-3, 4, 5, 6-tetrachlorophthalamic acid] at a concentration of 100ppm were examined. Bacterial population in the guttation droplet lowered when the percent of lesion area on the leaf decreased. The concentration of techlofthalam detected was 0.1ppm or below, with the exception of one sample 1 day after spraying.
