Publications by authors named "Roberto Lezama-Gutierrez"
Article Synopsis
- The study aimed to isolate strains of Beauveria bassiana from cattle farms, analyze their genetic relationships, and evaluate their effectiveness against different strains of the Rhipicephalus microplus tick, which varies in resistance to chemical treatments.
- Six strains were successfully isolated, with the BbV03 strain showing the highest effectiveness, achieving 86.7% mortality in resistant ticks after 20 days, indicating strong acaricidal properties.
- The research highlights the potential of these fungal strains as a biological control method for ticks, suggesting that genetic variations among B. bassiana may contribute to its effectiveness in managing resistant tick populations in tropical cattle farming environments.
Effect of Metarhizium anisopliae (Ascomycete), Cypermethrin, and D-Limonene, Alone and Combined, on Larval Mortality of Rhipicephalus sanguineus (Acari: Ixodidae).
Omar Francisco Prado-Rebolledo Jaime Molina-Ochoa Roberto Lezama-Gutiérrez Luis Jorge García-Márquez Yureida B Minchaca-Llerenas
J Med Entomol
September 2017
The effect of the fungus Metarhizium anisopliae Ma14 strain, D-limonene, and cypermethrin, alone and combined, on the mortality of Rhipicephalus sanguineus Latreille larvae was evaluated. Eight separate groups with 25 tick larvae were inoculated with the fungus, cypermethrin, and D-limonene, and four groups were used as untreated controls. The groups were inoculated with serial dilutions of each treatment material: for example, conidial concentrations were 1 × 101, 1 × 102, 1 × 103, 1 × 104, 1 × 105, 1 × 106, 1 × 107, and 1 × 108.
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