Sammanfattning

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.

Nyckelord

Cucurbit fruit fy; Zeugodacus cucurbitae; Entomopathogenic fungi; Metarhizium anisopliae; Beauveria bassiana

Publicerad i

Egyptian Journal of Biological Pest Control
2023, Volym: 33, artikelnummer: 45

SLU författare

• Karlsson, Miriam Frida

  • Institutionen för ekologi, Sveriges lantbruksuniversitet
    
  • International Institute of Tropical Agriculture (IITA)

Globala målen

SDG15 Skydda, återställa och främja ett hållbart nyttjande av landbaserade ekosystem, hållbart bruka skogar, bekämpa ökenspridning, hejda och vrida tillbaka markförstöringen samt hejda förlusten av biologisk mångfald
SDG2 Avskaffa hunger, uppnå tryggad livsmedelsförsörjning och förbättrad nutrition samt främja ett hållbart jordbruk


UKÄ forskningsämne

Trädgårdsvetenskap/hortikultur


Publikationens identifierare

DOI: https://doi.org/10.1186/s41938-023-00693-0

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/126403