Studies on leaf scorch decline - of coconut

Abstract

" leaf Scorch Decline" of coconut in Sri Lanka has remained of unknown etilogy for a long time. The present study was initiated in order to determine its possible cause. An estimation of the "soil" and "Rhizosphere" bacteria has been made by the dilution plate techniques. The results indicate a constant association of pseudomonad type of bacteria in the soil around diseased palms and in necrotic roots and other plant parts of disease palm. This appears to suggest the possibility of one or more of these bacteria either alone or in