Pathogenicity of Beauveria bassiana (Deuteromycotina: Hypomycetes) to larvae of the small poplar longhorn beetle, Saperda populnea (Coleoptera: Cerambycidae).
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 (LT(50)) 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.
Eken
C
C
Department of Plant Protection, Faculty of Agriculture, Atatürk University, 25240, Erzurum, Turkey. ceken@atauni.edu.tr
Tozlu
G
G
Dane
E
E
Coruh
S
S
Demirci
E
E
D000818:Animals; D001517:Coleoptera / Q000254:growth & development / Q000382:microbiology*; D006999:Hypocreales / Q000254:growth & development / Q000472:pathogenicity*; D007814:Larva / Q000382:microbiology; D010572:Pest Control, Biological / Q000379:methods; D032107:Populus / Q000469:parasitology*; D011897:Random Allocation; D014421:Turkey