Virulence of the entomopathogenic nematodes Heterorhabditis bacteriophora, Heterorhabditis zealandica, and Steinernema scarabaei against five white grub species (Coleoptera: Scarabaeidae) of economic importance in turfgrass in North America

Albrecht M. Koppenhöfer, Parwinder S. Grewal, Eugene M. Fuzy

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

We compared the virulence of the entomopathogenic nematodes Steinernema scarabaei, Heterorhabditis zealandica, and Heterorhabditis bacteriophora (GPS11 and TF strains) against third instars of the Japanese beetle, Popillia japonica, the oriental beetle, Anomala (=Exomala) orientalis, the northern masked chafer, Cyclocephala borealis, the European chafer, Rhizotrogus majalis, and the Asiatic garden beetle, Maladera castanea, in laboratory and greenhouse experiments. The virulence of the nematode species relative to each other differed greatly among white grub species. H. bacteriophora and H. zealandica had similar modest virulence to P. japonica, A. orientalis, C. borealis, and M. castanea. But against R. majalis, H. zealandica showed low virulence with a clear concentration response whereas H. bacteriophora caused only erratic and very low mortality. In contrast, S. scarabaei had modest virulence against C. borealis, but was highly virulent against R. majalis, P. japonica, A. orientalis, and M. castanea with R. majalis being the most susceptible and M. castanea the least susceptible.

Original languageEnglish (US)
Pages (from-to)397-404
Number of pages8
JournalBiological Control
Volume38
Issue number3
DOIs
StatePublished - Sep 2006

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Insect Science

Keywords

  • Anomala orientalis
  • Biological control
  • Cyclocephala borealis
  • Heterorhabditis
  • Insect-parasitic nematodes
  • Maladera castanea
  • Popillia japonica
  • Rhizotrogus majalis
  • Scarab
  • Steinernema

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