entomopathogenic fungi produce secondary metabolites which may bioactively help fungus in its virulence toward insect hosts. beauveria bassiana produces several toxic low molecular compounds in vitro as well as in vivo, the most important of them is beauvericin. the beh isolate of the fungus was selected for beauvericin assay. beauvericin was obtained from surface and submerged cultures of the ...

in the present study, pathogenicity of four native strains of entomopathogenic fungus; metarhizium anisopliae, was studied against adult stage of ixodes ricinus. for this purpose a total number of 180 adult ticks were examined in triplicate. thirty ticks for each strain and negative and positive controls were immersed in 2.4×107 fungal conidia/ml in vitro. samples were incubated in separate pet...

beauveria bassiana (balsamo) vuillemin is an important natural regulator of insect populations. identification of a suitable molecular marker for detecting a virulent phenotype on a target pest would be useful in screening for effective isolates against the pest. nine isolates of b. bassiana were tested for their virulence to adults of tribolium castaneum (herbst) in laboratory bioassay with 1×...

the sub-lethal effect of metarhizium anisopliae and imidacloprid as well as combination of the two control agents was examined on life table parameters of myzus persicae on different cultivars of canola under laboratory condition at 25 ± 1 ºc, 85% rh and photoperiod of 16l: 8d. the offspring resulting from fungus-infested adults were placed onto leaf discs in petri dishes separately to record t...

horizontal transmission of an isolate of the etomopathogenic fungus, beauveria bassiana kcf102, was examined by allowing inoculated eurygaster integriceps put. adults to mate with non-inoculated ones. in case of susceptibility to b. bassiana, there was no significant difference between the males and females. however, there was significant difference among treatments for mortality of non-inocula...

Entomopathogenic fungi, when used as a microbial control agent against cotton pests, such as Helicoverpa spp., may have the potential to establish and spread in the environment and to have an impact on both pests and beneficial insects. Information on the effect of entomopathogenic fungi on pests and beneficial insects is crucial for a product to be registered as a biopesticide. The effect of t...