“…Some reports have shown that the some species of intestinal bacteria associated with rhabditid nematodes could serve to promote nematode biological control effects. Nineteen bacterial genera have been found to be mutually associated with Rhabditis (Oscheius) nematodes: Bacillus (Mohandas et al, 2007), Klebsiella, Acinetobacter, Comamonas, Brucellaceae, Achromobacter (Deepa, Mohandas, & Siji, 2011), Alcaligenes, Flavobacterium, Providencia (Park, Kim, Ha, & Youn, 2011), Stenotrophomonas, Enterobacter, Proteus, Pseudomonas, Enterococcus, Lysinibacillus (Padmakumari et al, 2007Sangeetha et al, 2016), Microbacterium, Serratia, Rheinheimera and Staphylococcus (Tambong, 2013). Among them, Bacillus cereus isolate 03BB102 (Mohandas et al, 2007), Flavobacterium sp., Providencia vermicola (Deepa et al, 2011), Serratia marcescens (Tambong, 2013) and Serratia nematodiphila (Zhang, Yang, Xu, & Sun, 2009) exhibit virulence against insects and help improve nematode reproduction.…”