the first time in Iran throughout the three provinces in the north-west of the country. Soil
samples were tested for the presence of steinernematid and heterorhabditid nematodes by
baiting with Galleria mellonella larvae. Of the 833 soil samples studied 27 were positive for
entomopathogenic nematodes (3.2%), with 17 (2.0%) containing Heterorhabditis and ten
(1.2%) Steinernema isolates. Morphological and molecular studies were carried out to …