Concentration of suspension and temperature as factors of pathogenicity of entomopathogenic nematodes for the control of granary weevil, Sitophilus granarius (L.) (Coleoptera: Curculionidae)

Authors

  • Stanislav TRDAN Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
  • Nevenka VALIČ Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
  • Gregor UREK Agricultural Institute of Slovenia, Hacquetova 17, SI-1000 Ljubljana, Slovenia
  • Lea MILEVOJ Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia

DOI:

https://doi.org/10.14720/aas.2005.85.1.15266

Keywords:

entomopathogenic nematodes, granary weevil, Sitophilus granarius, efficacy, biological control

Abstract

 Efficacy of four species of entomopathogenic nematodes (Steinernema feltiaeS. carpocapsaeHeterorhabditis bacteriophoraH. megidis) for the control of granary weevil adults (Sitophilus granarius) was tested under laboratory condition. Suspensions of nematodes were applied in three concentrations (5.000, 10.000, and 20.000 IJs per ml) at three temperatures (15oC, 20oC and 25oC). After one week mortality of the beetles was assessed. No significant differences in the percentage of mortality were determined between treatments with S. feltiaeS. carpocapsae and H. bacteriophora, while H. megidis was the least efficient. Mortality of the beetles was statistically significantly higher at 20 and 25 oC. Influence of the concentration of the nematode suspension was proved to be less important in biological activity of biological agents in question.

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Published

15. 05. 2005

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Section

Original Scientific Article

How to Cite

TRDAN, S., VALIČ, N., UREK, G., & MILEVOJ, L. (2005). Concentration of suspension and temperature as factors of pathogenicity of entomopathogenic nematodes for the control of granary weevil, Sitophilus granarius (L.) (Coleoptera: Curculionidae). Acta Agriculturae Slovenica, 85(1), 117–124. https://doi.org/10.14720/aas.2005.85.1.15266

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