Morphological and morphometrical characterization of root-knot nematode, Meloidogyne enterolobii (Yang and Eisenback, 1983) in guava from nine districts of Tamil Nadu, India.
Root-knot nematode invasions in guava trees became known among Tamil Nadu (India) farmers, recently. An extensive survey was thus carried out in nine districts (Coimbatore, Erode, Madurai, Theni, Villupuram, Thiruvannamalai, Dharmapuri, Krishnagiri and Dindigul) of Tamil Nadu, India, confirming the presence of M. enterolobii. Morphological and morphometrical characterization of mature females, males and second stage juveniles (J2s) using characters viz., body length, body width, stylet length, stylet knob height, stylet knob width and perineal patterns revealed similarity with those of the original description (Yang and Eisenback, 1983). The populations from the various location did not show any variability morphologically.