Integrated Management of Root Knot Disease Complex of Brinjal by Using Fungal Bioagent

Abstract

In systematic survey a disease complex was found which  caused disease complex resulting in heavy damage of brinjal  crop caused by root knot nematode Meloidogyne incognita and  root will fungus Fusarium oxysporum f. sp. lycopersici. Sevral  sprophytic fungi were found associated with the rhizosphere  soil viz. Trichoderma hazarium, Aspergillus terreus, A. fumigatus,  A. niger, Cladosporium oxysporum, Penicillium oxalium,  Aspergillus species which was not egg parasitic but exihibited  high toxicity (85-100%) to second stage juveniles (J2), C.  oxysporum parasitized the egg by 84% but in effective against  J2, while the eggs and juveniles of M. incoginita get effected  by T. hazarium by 80% and 72% respectively. The soil is  amendment of vasicular mycorrhiza by talc based  formulation of T. hazarium @8g Kg -1 (2×106 spore load) along  with leaf powder (0.05% w/w) of Tinospora longifolia and  vasicular arbuscular mycorrhiza (Glomus fasciculatum) @ 100  chlamydospore per kg soil.