author(s)
Divya Bharathi AR, Benagi VI and Ravikumar MR

abstract
An intensive roving survey was conducted during 2015-16 and 2016-17 to record the incidence of betelvine wilt complex disease in northern parts of Karnataka. Percent disease incidence ranged from 10.6 to 28.4, typical galling symptom of root knot nematode was observed in wilt affected betelvine plants. Isolation and identification of pathogens was confirmed by following Koch’s postulates, nematode inoculated plants showed the typical symptoms as recorded in the field. Root knot nematode was more frequently associated with Sclerotium rolfsii, Rhizoctonia bataticola and Fusarium spp. resulting in maximum wilt disease incidence.