Meloidogyne spp. - cause of root-knot of important forest tree species in nurseries.
During forest disease surveys conducted in nurseries in and around Dehra Dun, Uttar Pradesh, in 1990-91, root knot nematodes were identified causing galling and poor growth in 4 important tree species: Acacia catechu, Albizia procera, Pongamia pinnata and Tectona grandis. Three species of Meloidogyne were identified: M. arenaria, M. javanica and M. incognita. Different patterns of infection (between species, and incidence) were found at different nurseries.