Karlsson, Miriam Frida
- Department of Ecology, Swedish University of Agricultural Sciences
- International Institute of Tropical Agriculture (IITA)
Research article2023Peer reviewedOpen access
Hintènou, Micheline V.; Omoloye, Adebayo A.; Douro Kpindou, Ouorou K.; Karlsson, Miriam Frida; Djouaka, Rousseau; Bokonon-Ganta, Aimé H.; Tamȯ, Manuele
Background
Entomopathogenic fungi are primary pathogens that naturally afect insect pests by suppressing their populations and considered as an ecofriendly agents. The present study aimed to evaluate in vitro activity of diferent isolates of Beauveria bassiana and Metarhizium anisopliae against the development of larval stages of the Cucurbit fruit fy, Zeugodacus cucurbitae (Coquillett) (Diptera: Tephritidae).
Results
Larval mortality was signifcantly high with B. bassiana isolate Bb337 (5.82–21.70%) and with the lowest in M. anisopliae isolate MaD (1.49–6.33%). Pupal mortality rate was comparatively higher with more than 50%. The cadavers of all host instars produced conidia (sporulation). Sporulated dead larvae were signifcantly higher in Bb337 (61.10%) than at the least in MaD (18.60%) at 105 conidia/ml. At 108 conidia/ml, MaD induced the highest pupal cadavers with mycosis (32.42%). Regardless of applied fungal species, host instars mortality signifcantly increased with increasing concentration of B. bassiana isolates, suggesting a concentration-dependent response of Z. cucurbitae.
Conclusion
The tested isolates demonstrated their pathogenicity through vertical transmission of mycosis from one instar to another, regardless of the concentrations used.
Cucurbit fruit fy; Zeugodacus cucurbitae; Entomopathogenic fungi; Metarhizium anisopliae; Beauveria bassiana
Egyptian Journal of Biological Pest Control
2023, Volume: 33, article number: 45
SDG15 Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
SDG2 End hunger, achieve food security and improved nutrition and promote sustainable agriculture
Horticulture
DOI: https://doi.org/10.1186/s41938-023-00693-0
https://res.slu.se/id/publ/126403