Nematicidal effect of extracts from Brugmansia suaveolens and Acnistus arborescens against Radopholus similis

 

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Autoren: Villalta-Madrigal, Daniela, Mencía-Guevara, Alejandra, Peraza-Padilla, Walter
Format: artículo original
Status:Versión publicada
Publikationsdatum:2025
Beschreibung:Bananas are a crop of great economic importance worldwide; however, their production is threatened by various pests, including plant-parasitic nematodes. This study evaluated the nematicidal effect of extracts obtained from Brugmansia suaveolens (reina de la noche) flowers and Acnistus arborescens (güitite) leaves against populations of Radopholus similis under in vitro conditions. The tests took place 30 and 45 hours after exposure at the Nematology Laboratory of the School of Agricultural Sciences, Universidad Nacional (UNA), Costa Rica, in 2021. The results revealed significant interaction between the treatments and the exposure time (p < 0.0004). At 30 hours, applications with A. arborescens at concentrations of 1%, 1.5%, and 2% caused mortalities ranging from 23% to 32%. At 45 hours, the application of B. suaveolens at 2% (T6) produced the highest mortality (54%), followed by trials T4, T2, T5, T3, and T1. The control showed values of 23% and 28% in the respective evaluations. The mixture of both extracts (T7) did not show an additive effect. These findings support the potential use of these plant species as sustainable alternatives for nematode management in agricultural systems.
Land:Portal de Revistas UNA
Institution:Universidad Nacional de Costa Rica
Repositorio:Portal de Revistas UNA
Sprache:Español
OAI Identifier:oai:www.revistas.una.ac.cr:article/21981
Online Zugang:https://www.revistas.una.ac.cr/index.php/perspectivasrurales/article/view/21981
Stichwort:Plant nematodes
defense reactions
antibiosis
musaceae
biological pest control
nematodos de las plantas
reacciones de defensa
musáceas
control biológico de plagas
nematoides de plantas
reações de defesa
antibiose
musgos
controle biológico de pragas