Steinernema scapterisci/Xenorhabdus innexi (entomopathogen)

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entomopathogenic nematode Steinernema scapterisci
Author: David Cappaert, Michigan State University, U.S.A.
Source: IPM Images

Steinernema scapterisci Nguyen & Smart, 1990 - nematode
Xenorhabdus innexi Lengyel et al., 2005 - example of symbiotic bacterium

This nematode is of South American origin and was introduced into North America against invasive mole crickets of the genus Scapteriscus. These introductions have reduced the mole cricket populations to as little as 5%. Compared to other entomopathogenic nematodes, it is unusual in being highly host specific and being not restricted to a single species of symbiotic bacterium. It has been found to be associated to several species of bacteria, one of them being Xenorhabdus innexi.