Efficacy of an Antihelminthic antibiotic (KT-199) on Meloidogyne incognita affecting winged bean as compared to phenamiphos

The efficacy of an antihelminthic antibiotic (KT-199), a semi-synthetic peptide from streptomyces spp. and the commonly used non-fumigant nematicide, phenamiphos in the control of Meloidogyne incognita affecting winged bean was evaluated and compared. As soil drench the antibiotic was equally effective to that of nematicide while as foliar spray it was more effective than phenamiphos in reducing number of galls per plant, as well as multiplication of parasite in the host indicating downward systemic movement of antibiotic comparable to phenamiphos. Under in vitro tests the antibiotic was more effective in inhibiting egg-hatching than larval survival.