Isolation of beauveria bassiana pr-11 from andean orthopterans and its effectiveness against chagas disease vectors in Peru

P. Castellanos-Sánchez, F. Falconi-Agapito, N. Pariona, C. Paredes-Esquivel

Research output: Contribution to journalArticlepeer-review

Abstract

Chagas disease is endemic to the Americas and is transmitted by blood-feeding kissing bugs. We evaluated the insecticidal potential of a fungus (Beauveria bassiana strain Pr-11) against Triatoma infestans, an important vector in South America. This fungal species was isolated from a locust (Schistocerca piceifrons) that inhabits the Central Andes region of Peru. Ten days post inoculation, this strain induced high insect mortality (97%) at low fungal concentrations (2 × 107 conidia/ml) at 70% relative humidity. The Pr-11 strain outperformed reference strain CCBLE-216 B. bassiana, provided by the Peruvian Ministry of Agriculture. Our results are consistent with previous reports on the virulence of this fungal strain against other insect pests. This is the first study to evaluate an orthopteran-isolated B. bassiana to control Chagas disease vectors. We conclude that strain Beauveria bassiana Pr-11 is effective against Triatoma infestans, resulting in a promising tool to control Chagas disease in Peru and may be used in integrated vector control programs.

Original languageEnglish
Pages (from-to)864-870
Number of pages7
JournalTropical Biomedicine
Volume37
Issue number4
DOIs
StatePublished - 2020
Externally publishedYes

Bibliographical note

Funding Information:
thank the financial support given by the Ministry of Health of Peru (USAID-MINSA fund) and Ms. Hilda Gómez from the Ministry of Agriculture of Peru for providing reference strain.

Publisher Copyright:
© 2020, Malaysian Society for Parasitology. All rights reserved.

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