作者
Luis Alberto Cisneros-Vázquez, Rosa Patricia Penilla Navarro, Américo D Rodríguez, José Genaro Ordóñez-González, Kenia Mayela Valdez-Delgado, Rogelio Danis-Lozano, Guadalupe Vázquez-Martínez
发表日期
2023/3/10
期刊
Salud Pública de México
卷号
65
期号
2 mar-abr
页码范围
144-150
简介
Objective
To assess larvicide and adulticide activity of different native strains of fungi on Aedes aegypti.
Materials and methods
Third instar larvae were exposed for 72 h at a concentration of 1x108 conidia/ml of 15 fungi; only fungi that significantly affected the larvae were evaluated against the adult phase at a concentration of 2x1010 conidia/ml. Mortality readings were performed at 24, 48, and 72 h for larvae, and every day to 30 days for adults.
Results
Trichoderma longibrachiatum, Aspergillus aculeatus, and Metarhizium anisopliae had the best larvicidal activity at 24 h of exposure (p< 0.05), causing mortalities of 100, 72, and 62%, respectively. Adult mosquitoes were more affected by Gliocladium virens (45% mortality), M. anisopliae (30% mortality), and T. longibrachiatum (23.33% mortality).
Conclusion
The larval stage of Ae. aegypti was more susceptible than the adult phase to the pathogenic action of native fungi, with T. longibrachiatum being with the highest virulence.
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