New host record of root-knot nematode (Meloidogyne graminicola) in Pakistan.
A survey of rice growing areas in two districts of Punjab (Pakistan), Faisalabad and Chiniot, was conducted during September 2014-15 for rootknot nematode, Meloidogyne graminicola. During the survey, typical symptoms of hook like galls on roots were observed not only in rice plants but also in weeds. Roots of different weeds: Cyperus rotundus, Dactyloctenium aegyptium, Echinochloa crus-galli, Eclipta alba [E. prostrata] and Paspalum distichum from rice field and Avena fatua, Phalaris minor and Rumex dentatus from wheat field were collected during summer and winter 2014-15, respectively. Mixed population of nematode was found in A. fatua, R. dentatus and P. minor. More than one type of root galls in a single plant root system were present and differentiated on the basis of gall shape and egg-mass positions. The other root-knot species confirmed was Meloidogyne arenaria. These are new host records of root-knot nematode from Punjab.