Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica

Importation of live nursery plants, like Dracaena marginata Lamoureux (Ruscaceae), can provide a significant pathway for the entry of foliar pests from overseas into the United States. We studied the abundance of foliar pests of quarantine importance found on Costa Rican-grown D. marginata. These in...

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Detalles Bibliográficos
Autores principales: Hidalgo, Eduardo, Benjamin, Tamara, Casanoves, Fernando, Sadof, Clifford
Formato: article
Lenguaje:Inglés
Publicado: 2022
Materias:
Viveros
Plagas de plantas
Importaciones
Dracaena marginata
Acceso en línea:http://hdl.handle.net/11086/23972
https://doi.org/10.1603/EC12446
Aporte de:
Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba
id I10-R14111086-23972
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-141
collection Repositorio Digital Universitario (UNC)
language Inglés
topic Viveros
Plagas de plantas
Importaciones
Dracaena marginata
spellingShingle Viveros
Plagas de plantas
Importaciones
Dracaena marginata
Hidalgo, Eduardo
Benjamin, Tamara
Casanoves, Fernando
Sadof, Clifford
Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
topic_facet Viveros
Plagas de plantas
Importaciones
Dracaena marginata
description Importation of live nursery plants, like Dracaena marginata Lamoureux (Ruscaceae), can provide a significant pathway for the entry of foliar pests from overseas into the United States. We studied the abundance of foliar pests of quarantine importance found on Costa Rican-grown D. marginata. These include five genera of leafhoppers (Heteroptera: Cicadellidae, Oncometopia, Caldweliola, Diestostema, Gypona, and Empoasca), Florida red scale (Heteroptera: Disapididae, Chrysomphalus aoinidum (L.)), katydids (Orthoptera: Tettigoniidae), and a snail (Succinea costarricana von Martens (Gastropoda, Stylommatophora, Succineidae)). In our first study, we examined the rationale behind size restrictions on Dracaena cuttings imported into the United States from Costa Rica. When comparing plant size, no differences were found in the abundance of quarantined pests on small (15–46 cm), medium (46–81 cm), and large (81–152 cm) propagules. In a second study, we estimated monthly abundances of pests in production plots for 1 yr to determine their relationship to rates of interception at U.S. ports. In any given month, <6% of the marketable shoots standing in the field were infested with at least one quarantine pest. There was no relationship between the average monthly frequencies of pest detection in the field and in U.S. inspection ports. Pest detections increased during the 1 mo when average monthly shipments were abnormally high. Our data suggest that off-shore postprocessing efforts to remove pestinfested material from the market stream need to be adjusted to accommodate sharp increases in the volume of shipped plants.
format article
author Hidalgo, Eduardo
Benjamin, Tamara
Casanoves, Fernando
Sadof, Clifford
author_facet Hidalgo, Eduardo
Benjamin, Tamara
Casanoves, Fernando
Sadof, Clifford
author_sort Hidalgo, Eduardo
title Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
title_short Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
title_full Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
title_fullStr Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
title_full_unstemmed Factors influencing the abundance of pests in production fields and rates of interception of Dracaena marginata imported from Costa Rica
title_sort factors influencing the abundance of pests in production fields and rates of interception of dracaena marginata imported from costa rica
publishDate 2022
url http://hdl.handle.net/11086/23972
https://doi.org/10.1603/EC12446
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