MELOIDOGYNE SPP. IN MACEDONIA: DISTRIBUTION AND VIRULENCE FOR Mi RESISTANCE IN TOMATO

Abstract

The occurrence of Meloidogyne in several areas of Macedonia was surveyed. Seventy-three isolates from nine locations (fields and glasshouses) were identified and their behaviour on two susceptible and two Mi resistant tomato cultivars compared. M. incognita (47,9%) and M. javanica (35,6%) are the predominant species followed by M. arenaria (13,7%), and, sporadically, M. hapla (2,7%) was found. Mixtures of species were present at nearly all locations. Virulent isolates were found in M. incognita (11%) and M. javanica (46%) as well as in M. arenaria (50%). M. hapla isolates were compatible with all tomato genotypes tested. The impact of the occurrence of virulence for Mi carrying tomato genotypes is discussed.