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Efecto del barbasco (Lonchocarpus utilis) en el control de la Hypsipyla grandella Zéller en plantaciones juveniles de caoba (Swietenia macrophylla King) en la región de San Martín

Authors: Injante Pérez, Julio Miguel Antonio;

Efecto del barbasco (Lonchocarpus utilis) en el control de la Hypsipyla grandella Zéller en plantaciones juveniles de caoba (Swietenia macrophylla King) en la región de San Martín

Abstract

Con el objetivo de evaluar el efecto del barbasco (Lonchocarpus utilis) en el control de Hypsipyla grandella Zéller en plantaciones juveniles de caoba (Swietenia macrophylla King), se realizó un ensayo bajo un Diseño de Bloques Completamente Aleatorizados (DBCA), con 03 bloques y 05 tratamientos conformados por la asociación de plantas de caoba y barbasco, la aplicación de extractos de raíz y hoja de dicha planta biocida. Establecidas en distintos tratamientos: T1 (Testigo): caoba sola, T2: Caoba + Barbasco, T3: Caoba + Barbasco chapeado, T4: Caoba + Extracto foliar y T5: Caoba + Extracto de raíz. Las variables de evaluación se consideraron porcentaje de ataque (%), número de ataques, profundidad de cavernas, sobrevivencia de larvas y posición de ataque. Para verificar el efecto de los tratamientos se realizó el análisis de varianza (ANOVA) y para conocer la diferencias de acuerdo a la naturaleza de los tratamientos se utilizó las comparaciones múltiples de medias, donde se observó que el tratamiento 4 presento 0% de ataque de H. grandella a comparación con los demás tratamientos ( T5= 7,78%, T2=11,11%, T3=20% y T1= 62,22) mostrando que los tratamientos tienen diferencia significativa estadísticamente (p <0,05). Se concluye, que el extracto foliar y extracto de raíz al 40% de concentración reduce significativamente el porcentaje de ataque de H. grandella en plantas de caoba, debido a las concentraciones de rotenona y sustancias insecticidas en sus hojas y raíces, considerando que es económica y técnica factible en el control de la plaga.

In order to evaluate the effect of Barbasco (Lonchocarpus utilis) in the control of Hypsipyla grandella Zéller in juvenile mahogany plantations (Swietenia macrophylla King), a trial was installed under a Design of Completely Randomized Blocks (DBCA), with 03 blocks and 05 treatments formed by the association of mahogany and barbasco plants, the application of root and leaf extracts of said biocidal plant. Established in different treatments: T1 (Control): mahogany alone, T2: Mahogany + Barbasco, T3: Mahogany + Barbasco veneered, T4: Mahogany + Leaf extract and T5: Mahogany + Root extract. The evaluation variables were considered percentage of attack (%), number of attacks, depth of caves, and survival of larvae and position of attack. To verify the effect of the treatments, the analysis of variance (ANOVA) was performed and to find out the differences according to the nature of the treatments, multiple comparisons of means were made, where it was observed that treatment 4 presented 0% attack of H. grandella compared to the other treatments (T5 = 7,78%, T2 = 11,11%, T3 = 20% and T1 = 62,22) showing that the treatments have a statistically significant difference (p <0,05). It is concluded that the foliar extract and root extract at 40% concentration significantly reduces the percentage of attack of H. grandella in mahogany plants, due to the concentrations of rotenone and insecticide substances in its leaves and roots, considering that it is economical and feasible technique in the control of the pest.

Tesis

Country
Peru
Related Organizations
Keywords

Swietenia macrophylla, Lonchocarpus utilis, Hypsipyla grandella, https://purl.org/pe-repo/ocde/ford#2.07.00, Planta biocida, 630, Extractos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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