[PDF] The effect of Metarhizium robertsii and Bacillus thuringiensis against Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) | Semantic Scholar (2024)

The results suggest that the combination of entomopathogenic fungi and the insecticidal protein of B. thuringiensis can be exploited as potential biocontrol agents against T. absoluta.

This nine-day experiment focused on the effect of three fungal species, Beauveria bassiana, Metarhizium robertsii and Isaria fumosorosea, on the survival of Helicoverpa armigera larvae in vitro, with varying degrees of larval mortality which exhibited a clear dose-dependency.

F. solani isolate displayed the highest toxicity against H. armigera larvae and could be considered as a promising biocontrol agent of this serious pest.

The biological parameters like high fecundity, reproducibility, and comparatively long-life period support in the incitement of damage threshold (DT) support the presentation and control tactics against African bollworm.

In its individual application, CBD oil generated the highest insect mortality while its effect was clearly dose-dependent, revealing a promising effect of CBD oil against these coleopterans which had not been previously tested together.

A novel pest management strategy underlying the cooperation between EPF infection and disturbing the insect immune system is discussed, and novel perspectives for EPF-mediated pest management and developing effective fungal insecticides are provided.

The findings suggest that Bt chickpeas and M. anisopliae are compatible to control H. armigera, and resistance to Cry2A did not cause any fitness costs that became visible as increased susceptibility to the fungus.

The four mentioned isolates with desired virulence and sporulation potential are excellent candidates for microbial control of aphids.

A synchronous coinfection of the Colorado potato beetle with the entomopathogenic bacteria Bacillus thuringiensis ssp.

The findings from these studies proved that the extended exposure interval and the highest combined dose rate of the entomopathogenic fungus and the diatomaceous earth gave the maximum mortality of the beetles.

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