First report of Meloidogyne javanicaon potato (Solanum tuberosumL.) in the southern region of the state of Goiás
José Feliciano Bernardes Neto, João Pedro Elias Gondim, Nadson de Carvalho Pontes, Rodrigo Vieira da Silva
Journal Title:Revista Agraria Academica / Agrarian Academic Journal
Potato tubers (Solanum tuberosumL.) exhibiting symptoms of nematode attack were located in a planted area in the municipality of Morrinhos-GO. Thus, in order to clarify the etiology of the disease, some plants were collected. The roots and tubers were analyzed, which presented typical galls, with the appearance of superficial "popcorn" in the tubers and, when dissecting the galls, white-milky females were observed, typical symptoms and signs of root-knot nematodes, genus Meloidogyne. Part of the roots was used to extract eggs for multiplication in greenhouse tomatoes. Female perineal pattern and isoenzyme (esterase) electrophoretic pattern analysis confirmed the species Meloidogyne javanica. This is thefirst report of M. javanicainfecting the potato crop in the southern region of the state of Goiás, serving as an alert to potato and vegetable farmers in general, in order to prevent the spread of the nematode in other areas of planting.