Pathogenicity of Beauveria bassiana (Deuteromycotina : Hypomycetes) to larvae of the small poplar longhorn beetle, Saperda populnea (Coleoptera : Cerambycidae)


EKEN C., TOZLU G., DANE E., CORUH S., Demirci E.

MYCOPATHOLOGIA, vol.162, no.1, pp.69-71, 2006 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 162 Issue: 1
  • Publication Date: 2006
  • Doi Number: 10.1007/s11046-006-0035-8
  • Title of Journal : MYCOPATHOLOGIA
  • Page Numbers: pp.69-71

Abstract

The small poplar longhorn beetle, Saperda populnea is an important pest of Lombardy poplars (Populus nigra L.) in Turkey. A survey for natural entomopathogenic fungi of S. populnea larvae was made in Erzurum, Turkey, during the period 2004-2005. Larvae (13.5%) infected with a strain of the fungus Beauveria bassiana were found. The pathogenicity of B. bassiana strain 46 was conducted with different concentrations of conidia (10(6), 10(7) and 10(8) conidia/ml) of this isolate on S. populnea larvae. The lowest concentration (10(6) conidia/ml) caused about 56% mortality within 6 days. One hundred percent mortality was achieved after median lethal time (LT50) of 4.6 and 4.4 days for 10(7) and 10(8) conidia/ml, respectively. There were no significant differences between median lethal times. This is the first record of natural infection of S. populnea larvae by B. bassiana.