<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This study was conducted to evaluate the insecticidal activity of the endophytic fungus Isaria fumosorosea Wize isolated from Ricinus communis L. against Locusta migratoria L. and Acanthoscelides obtectus Say. To evaluate the insecticidal activity, a mixture of fungal extract and spore suspensions (1x107, 1x106 and 1x105 spores/ml of dissolved extract) were applied against the insects. It was found that I. fumosorosea had a good insecticidal activity, positively proportional to concentration and time after exposure (24, 48, 72 hours). A maximum mortality rate of 80% for A. obtectus and 70% for L. migratoria at 1x107 spores/ml of dissolved extract was recorded. Preliminary phytochemical analyses of the fungal extract revealed the presence of alkaloids, flavonoids and phenols. Additionally, a fungal development on the insects bodies has also been noticed; that is undoubtedly explained the recorded insecticidal activity.</p></abstract>

This study was conducted to evaluate the insecticidal activity of the endophytic fungus Isaria fumosorosea Wize isolated from Ricinus communis L. against Locusta migratoria L. and Acanthoscelides obtectus Say. To evaluate the insecticidal activity, a mixture of fungal extract and spore suspensions (1x107, 1x106 and 1x105 spores/ml of dissolved extract) were applied against the insects. It was found that I. fumosorosea had a good insecticidal activity, positively proportional to concentration and time after exposure (24, 48, 72 hours). A maximum mortality rate of 80% for A. obtectus and 70% for L. migratoria at 1x107 spores/ml of dissolved extract was recorded. Preliminary phytochemical analyses of the fungal extract revealed the presence of alkaloids, flavonoids and phenols. Additionally, a fungal development on the insects bodies has also been noticed; that is undoubtedly explained the recorded insecticidal activity.

The insecticidal activity of the endophytic fungus <italic>Isaria fumosorosea</italic> Wize isolated from the leaves of the <italic>Ricinus communis</italic> L. against <italic>Locusta migratoria</italic> L. and <italic>Acanthoscelides obtectus</italic> Say

University of Mohamed Elbachir Elibrahimi

Department of Agriculture and Forestry Zoology

Acta Scientifica Naturalis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The insecticidal activity of the endophytic fungus  Wize isolated from the leaves of the  L. against  L. and  Say

This study was conducted to evaluate the insecticidal activity of the endophytic fungus Isaria fumosorosea Wize isolated from Ricinus communis L. against...

The insecticidal activity of the endophytic fungus Isaria fumosorosea Wize isolated from the leaves of the Ricinus communis L. against Locusta migratoria L. and Acanthoscelides obtectus Say

Publié en ligne: 18 avr. 2020

Pages: 126 - 135

DOI: https://doi.org/10.2478/asn-2020-0012

Mots clés
insecticidal activity, endophytic fungi, Ricinus communis L., Isaria fumosorosea Wize, Locusta migratoria L., Acanthoscelides obtectus Say

© 2020 Djamel Eddine Laib et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The insecticidal activity of the endophytic fungus Isaria fumosorosea Wize isolated from the leaves of the Ricinus communis L. against Locusta migratoria L. and Acanthoscelides obtectus Say

Publié en ligne: 18 avr. 2020

Pages: 126 - 135

DOI: https://doi.org/10.2478/asn-2020-0012

Mots clésinsecticidal activity, endophytic fungi, Ricinus communis L., Isaria fumosorosea Wize, Locusta migratoria L., Acanthoscelides obtectus Say

© 2020 Djamel Eddine Laib et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
insecticidal activity, endophytic fungi, Ricinus communis L., Isaria fumosorosea Wize, Locusta migratoria L., Acanthoscelides obtectus Say