Integration of Bioagent and Bioproduct for the Management of Root-Knot Nematode, Meloidogyne Incognita on Eggplant

Abstract

Efficacy of bioagent (Paecilomyces lilacinus) and the bioproduct (Radiant) in various combinations was assessed on the reproduction of Meloidogyne incognita on eggplant. The influence of P. lilacinus and Radiant was determined on egg hatching and second stage juvenile (J₂) mortality under in vitro conditions. The concentrations of 1% and 100% of Radiant and P. lilacinus respectively both alone and in combined application caused significant mortality and reduction in egg hatching at all time intervals. The interaction of P. lilacinus and Radiant was determined individually, concomitantly, and sequentially on reproduction of M. incognita on eggplant under greenhouse. The reproduction of M. incognita was significantly reduced in the concomitant treatment consisting of both P. lilacinus and Radiant followed by sequential and individual treatment of Radiant and the plant growth parameters incresed significantly. Our findings suggest that P. lilacinus and Radiant have the ability to regulate nematode population and may serve as nematicides.

Keywords: P. lilacinus, Radiant, Egg hatching, Mortality, Concomitant, Sequential