Leaf blight disease of coconut 2. studies on Curvularia sp

Abstract

The cultural behaviour of Curvularia lunata Wakker, which caused lesions in leaves of coconut seedlings, was studied on different agar media. Temperature -growth studies indicated that the colony growth and sporulation were best at 30 perc. The optimum temperature for germination of conidia on water agar was 30 perc. Germination was reduced with the increase of concentration of conidia, and was less on leaf surface than on water agar. When coconut leaves were inoculated with C. eragrostidis which was occasionally isolated from lesions, failed to produce any symptoms on inoculation