Abstract

espanolEsta investigacion tiene el objetivo de hacer una seleccion de especies vegetales que son propias de la region Amazonica con potencial de uso en el manejo integrado de la oruga militar tardia Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Para tal, fue evaluado la eficiencia de extractos hidroalcoholicos de 15 especies vegetales que se son de la region. Los extractos fueron producidos a partir de las hojas, o de la cascara, o de liana de las plantas. La eficiencia de los extractos (30 mg.mL-1) fue evaluada sobre huevos y larvas de 3° instar de S. frugiperda. Se constato una variacion de respuesta de la oruga militar tardia entre los extractos hidroalcoholicos. El extracto de la cascara de Calycophyllum spruceanum (Benth.) Hook. f. ex K. Schum. presento mayor eficiencia en los huevos, y el extracto de las hojas de Bauhinia forficata Link presento mayor eficiencia en las larvas. Estos resultados son fundamentales para el manejo de la oruga militar tardia, toda vez que, los efectos nocivos reducen las perdidas en la produccion de maiz en las primeras fases del desarrollo del S. frugiperda. Se concluye que los extractos de C. spruceanum y B. forficata fueron los mas eficientes para los huevos y larvas de la oruga militar tardia. EnglishThis study aimed to screen plant species from the Amazon region for the potential to be used in the integrated management of the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). For this purpose, the efficiency of the hydroalcoholic extracts of 15 plant species from the Amazon region was evaluated. The extracts were obtained from plant leaves, bark, or vines. The efficiency of the extracts (30 mg-mL-1) was evaluated on eggs and third instar larvae of S. frugiperda. A range of reactions of the fall armyworm to the hydroalcoholic extracts was observed. The extract obtainedfrom the bark of Calycophyllum spruceanum (Benth.) Hook. f. ex K. Schum. presented the highest efficiency against the eggs, whereas the extract obtained from the leaves of Bauhinia forficata Link was most efficient against the larvae. These findings are essential for the management offall armyworms because the deleterious effects in the initial stages of S. frugiperda development significantly reduce maize production. In conclusion, the extracts of C. spruceanum and B. forficata were more efficient for eggs and larvae of the fall armyworm, respectively.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.