Potencials of the powders of Lonchocarpus punctatus in the control of Sitophilus zeamais

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Sayonara Gonz?lez
Oriela Pino
Rafael Segundo Herrera
Nurys Valenciaga
Dayleni Fortes
Yaima S?nchez

Resumen

Plants have different challenges from the environment and respond to them. These responses to the biotic and abiotic environment permit them a better distribution of the resources to grow, reproduce and defend. This work was performed with the aim of establishing the composition of secondary metabolites and the potentials of the powders of the structural organs of Lonchocarpus punctatus in the control of Sitophilus zeamais. A completely randomized design was used with four repetitions and the treatments were: fruits, leaf, stem and a negative control. For L. punctatus, the phytochemical screening showed the presence of ?-amino groups, triterpens/steroids and tannins. The stems were noteworthy by having higher presence. The treatment of best insect mortality values (P < 0.001), lowest emergences and lowest grain weight losses was that of the stem with values of 72.36, 31.79, and 9.68 %, respectively. Besides, L. punctatus showed repellent effect for all the structures. It can be concluded that the plant of L. punctatus has diversity in the composition of groups of secondary metabolites and it was outstanding the presence of ?-amino groups, triterpens/steroids and tannins in the stems. Apparently, one or some of these compounds are associated with the anti-insect effect on Sitophilus zeamais. Therefore, the stem of L. punctatus, applied as powder at 1%, is a potentially active product in presence of S. zeamais.
Key words: secondary metabolites, anti-insect, Sitophilus zeamais.

Detalles del artículo

Cómo citar
Gonz?lez, S., Pino, O., Herrera, R. S., Valenciaga, N., Fortes, D., & S?nchez, Y. (2011). Potencials of the powders of Lonchocarpus punctatus in the control of Sitophilus zeamais. Cuban Journal of Agricultural Science, 45(1). Recuperado a partir de https://cjascience.com/index.php/CJAS/article/view/193
Sección
Ciencia de los pastos y otros cultivos
Biografía del autor/a

Sayonara Gonz?lez

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Oriela Pino

Centro de Nacional de Sanidad Agropecuaria (CENSA)

Rafael Segundo Herrera

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Nurys Valenciaga

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Dayleni Fortes

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Yaima S?nchez

Centro de Nacional de Sanidad Agropecuaria (CENSA)

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