| diversity and distribution of entomopathogenic nematodes (steinernematidae, heterorhabditidae) in south africa. | a total of 1506 soil samples from different habitats in seven geographic regions of south africa were evaluated for the presence of entomopathogenic nematodes (epn). nematodes were isolated from 5% of the samples. among the steinernematids, four steinernema sp. were recovered including steinernema khoisanae and three new undescribed species. although steinernematids were recovered from both humid subtropical and semiarid regions, this family accounted for 80% of epn recovered from the semiarid c ... | 2009 | 19615373 |