Evaluation of bioformulations for management of root knot nematode (meloidogyne incognita) infecting tuberose

Field experiments conducted for testing field efficacy of bioformulations for management of root knot nematode (meloidogyne incognita) infecting tuberose (polianthes tuberosa l.) cultivar ?calcutta single' in west bengal. eight treatments evaluated for managing root knot nematode problem in tuberose and results indicated that paecilomyces lilacinus,trichoderma harzianum,neem cake,pseudomonas fluorescens,pochonia chlamydosporia were effective and economic for managing m. incognita in tuberose. among the bioformulations,application of p. lilacinus @ 5kg enriched with fym 5t/ha was found to be the most effective and economic for reduction of root knot nematode infestation,nematode population and enhancement of cut-flower yield of tuberose. the application of t. harzianum @ 5kg with fym 5t/ha was also comparable to carbofuran @ 1 kg a.i./ha for root knot nematode management in tuberose. further,the present study demonstrated efficacy of single application of bioformulations against m. incognita infecting tuberose.