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17 December 2021 Pathogenicity and Virulence of Isaria javanica, Metarhizium anisopliae, and Beauveria bassiana Strains for Control of Drosophila suzukii (Matsumura)
Victor Manuel Gutierrez-Palomares, Luis Paulino-Alonso, Jorge Zambrano Gutierrez, Raquel Alatorre-Rosas
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Abstract

Pathogenicity and virulence of three strains of entomopathogenic fungi, Isaria javanica (CHE-CNRCB 307), Metarhizium anisopliae (CHE-CNRCB 224), and Beauveria bassiana (CHE-CNRCB 168), and a check of 1 ml of sterile 0.03% Tween® 80 were evaluated on adult spotted-wing drosophila, Drosophila suzukii (Matsumura). Lethal concentration 50 (LC50) of entomopathogenic fungi was determined at five concentrations (1 × 104, 1 × 105, 1 × 106, 1 × 107, and 1 × 108 conidia per ml-1) and the lethal time (LT50) at a dose of 1 × 108 conidia per ml. The evaluated strains had different amounts of pathogenicity and virulence on adult D. suzukii. The I. javanica (CHE-CNRCB 307) strain had the largest significant differences with LC50 of 1.6 × 104 adult conidia per ml and LT50 of 4,579 days. The M. anisopliae (CHE-CNRCB 224) and B. bassiana (CHE-CNRCB 168) strains were not significantly different compared to each other, with LC50 of 3.1 × 105 and 1.4 × 106 adult conidia per ml and LT50 of 18.16 and 15.3 days, respectively. Results provide information about entomopathogenic fungi and support for using it to control D. suzukii.

Victor Manuel Gutierrez-Palomares, Luis Paulino-Alonso, Jorge Zambrano Gutierrez, and Raquel Alatorre-Rosas "Pathogenicity and Virulence of Isaria javanica, Metarhizium anisopliae, and Beauveria bassiana Strains for Control of Drosophila suzukii (Matsumura)," Southwestern Entomologist 46(4), 853-860, (17 December 2021). https://doi.org/10.3958/059.046.0406
Published: 17 December 2021
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