Las plagas agrícolas como Bemisia tabaci y Pomacea canaliculata ocasionan pérdidas productivas y demandan alternativas de control más sostenibles que los plaguicidas sintéticos. El objetivo de esta investigación fue evaluar la eficacia biocida de un extracto botánico metanólico, aplicado en diferentes concentraciones y tiempos de exposición, sobre ambas especies bajo condiciones de laboratorio. Se desarrolló un estudio experimental cuantitativo con cuatro concentraciones de trabajo y seguimiento temporal de la mortalidad a las 3, 6, 9, 12 y 24 h. Los datos se analizaron mediante estadística descriptiva y un modelo lineal generalizado binomial. Los resultados evidenciaron un efecto dependiente de la concentración y del tiempo de exposición. En B. tabaci, T4 alcanzó 100% de mortalidad desde las 6 h, mientras que T1 y T2 registraron 5.00% y 8.75% a las 24 h. En P. canaliculata, T4 produjo 97.92% de mortalidad a las 3 h y 100% desde las 6 h, mientras que T1 y T2 alcanzaron 4.17% y 8.33% al final del ensayo. Se concluye que el extracto evaluado presentó actividad biocida promisoria frente a ambas plagas y que su eficacia dependió de la intensidad de la concentración aplicada y del tiempo de exposición.
Palabras clave: extracto botánico, biopesticida, Bemisia tabaci, Pomacea canaliculata, mortalidad
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