This study was carried out to determine the efficiency of local Bacillus isolates to
control large wax moth larvae (Galleria mellonella L.) at GCSAR laboratory in 2012.
Infected larvae were collected from stored wax combs, and the bacteria Bacillus
genus were isolated from dead larvae, or that showing disease symptoms of black
brown spots on larvae cuticle. Bacterium was grown on T3 medium and identified
according to biochemical tests, and the efficacy of isolates was determined on pure
colonies of larvae. The results of biochemical tests showed that the isolates belong
to Bacillus thuringiensis. Isolates were different in pathogenicity. Bt5 isolate was
the most efficient to kill the larvae of large wax moth (72.4 %), and significantly
superior all other isolates (p ≤ 0.01). Bt1 isolate showed a significant difference
with control but non-significant difference with Bt2, Bt3, Bt4, Bt6 and Bt7 isolates.
Biological tests were study the pathogenicity of four
local isolates of Beauveria bassiana (Bals) orginated
from, Latakia , Homs ,ICARDA Jableh on third larval age of Bactrocera oleae.
