Pathogenecity of Entomopathogenic Nematode, Heterorhabditis bacteriophora Poinar, 1975 on the indigenous population of Common Earwig, Forficula auricularia L. | ||
| کنترل بیولوژیک آفات و بیماری های گیاهی | ||
| Article 5, Volume 2, Issue 1, April 2013, Pages 35-41 PDF (247.67 K) | ||
| Document Type: Complete paper | ||
| DOI: 10.22059/jbioc.2013.35505 | ||
| Authors | ||
| Mona Kordestani1; Javad Karimi* 2; Mehdi Modarres Awal3; Mahnaz Hasani Kakhaki1; Mojtaba Hoseini2 | ||
| 1M.Sc. of Plant Protection Department, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| 2Biocontrol and Insect Pathology Laboratory, Department of Plant Protection, Faculty of Agricultura, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| 3Professor of Plant Protection Department, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| Abstract | ||
| In order to assay the pathogenicity of the entomopathogenic nematode, Heterorhabditis bacteriophora Poinar, 1975 on the indigenous population of common earwig, Forficula auricularia L., several concentrations including 100, 250, 500, 1000, 1500, 2000 and 3000 (IJs/ml of DW) were used in the laboratory conditions. In this experiment, effects of time (F 1, 91= 4.22, P <0.05) and concentration (F 6, 91= 14.9, P <0.01) of nematodes were significant on mortality F. auricularia, while, interaction of time and concentration was no significant on mortality of earwig (F 6, 91= 1.16, P=0.33). Beside, block factor had significant effect on mortality of earwig (F 7, 91= 0.94, P = 0.49). The maximum mortality was reached by 3000 IJs/ml after 48 hours of treatment. In order to measure the nematode reproductive potential within the earwig body, the concentration of 500 IJs/ml was used. The average rate of pathogen reproductively was 599.5 IJs/mg earwing body weight. The results of this study showed that common earwig could be as a host for H. bacteriophora. The aim of this study was to identify the possible pathogenicity of the entomopathogenic nematode, H. bacteriophora on common earwig, as confirmed by the results of this study. | ||
| Keywords | ||
| Insect pathology; Infectivity; reproduction | ||
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