Effect of BAU-biofungicide and Selected Plant Extracts against Root-knot (Meloidogyne javanica) of Brinjal

Abstract

Seven treatments viz. BAU-biofungicide (Trichoderma spp.), basak (Adhatoda vasica), mustard (Brassica campestris) oil-cake, mango (Mangifera indica) inflorescences, shaknote (Amaranthus viridis) and dholkalmi (Ipomoea fistulosa) leaf extracts (S) along with a control were tested against root-knot of brinjal caused by Meloidogyne javanica. The treatments were used as seed treatment, root dipping and soil drenching (7 days before) planting. Among the treatments, BAU-biofungicide and basak leaf extract gave superior results as they increased shoot and root length as well as fresh weight of shoot, root and yield correspondingly with the lowest galling incidence. BAU-biofungicide and basak leaf extract (S) also suppressed the population of eggs, L2 and adult female of M. javanica in brinjal. Negative correlations between gall number with shoot and root length, shoot and root weight of brinjal as well as positive correlations between gall number with eggs, L2 and adult female nematode under different treatments indicated the superior effect of the treatments expressed  in lower galling and the suppressive activities of the nematode.