Cargando…

A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)

Globally, Maruca vitrata (Geyer) is a serious yield constraint on food legumes including Yard-long bean (Vigna unguiculata subspecies sesquipedalis). However, there is a dearth of information on its damage potential, distribution and population dynamics in Yard-long beans. In the present study, the...

Descripción completa

Detalles Bibliográficos
Autores principales: Jayasinghe, R.C., Premachandra, W.T.S. Dammini, Neilson, Roy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4939760/
https://www.ncbi.nlm.nih.gov/pubmed/27441212
http://dx.doi.org/10.1016/j.heliyon.2015.e00014
_version_ 1782442054148685824
author Jayasinghe, R.C.
Premachandra, W.T.S. Dammini
Neilson, Roy
author_facet Jayasinghe, R.C.
Premachandra, W.T.S. Dammini
Neilson, Roy
author_sort Jayasinghe, R.C.
collection PubMed
description Globally, Maruca vitrata (Geyer) is a serious yield constraint on food legumes including Yard-long bean (Vigna unguiculata subspecies sesquipedalis). However, there is a dearth of information on its damage potential, distribution and population dynamics in Yard-long beans. In the present study, the level of M. vitrata larval infestation on flowers and pods of Yard-long beans in Sri Lanka was determined with respect to three consecutive cropping seasons, Yala, Off and Maha. Results indicated that larval infestation and abundance varied with developmental stage of flowers and pods, cropping season and their combined interactive effects. Flowers of Yard-long beans were more prone to M. vitrata larval attack compared to pods. Abundance and level of infestation of M. vitrata varied with plant parts, having a ranking of flower buds (highest) > open flowers > mature pods > immature pods (lowest). Peak infestation was observed six and eight weeks after planting on flowers and pods, respectively. Among the three cropping seasons, M. vitrata infestation was found to be higher during Maha and Off seasons compared to Yala. The findings of this study contribute to the identified knowledge gap regarding the field biology of an acknowledged important pest, M. vitrata, in a previously understudied crop in Sri Lanka.
format Online
Article
Text
id pubmed-4939760
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-49397602016-07-20 A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis) Jayasinghe, R.C. Premachandra, W.T.S. Dammini Neilson, Roy Heliyon Article Globally, Maruca vitrata (Geyer) is a serious yield constraint on food legumes including Yard-long bean (Vigna unguiculata subspecies sesquipedalis). However, there is a dearth of information on its damage potential, distribution and population dynamics in Yard-long beans. In the present study, the level of M. vitrata larval infestation on flowers and pods of Yard-long beans in Sri Lanka was determined with respect to three consecutive cropping seasons, Yala, Off and Maha. Results indicated that larval infestation and abundance varied with developmental stage of flowers and pods, cropping season and their combined interactive effects. Flowers of Yard-long beans were more prone to M. vitrata larval attack compared to pods. Abundance and level of infestation of M. vitrata varied with plant parts, having a ranking of flower buds (highest) > open flowers > mature pods > immature pods (lowest). Peak infestation was observed six and eight weeks after planting on flowers and pods, respectively. Among the three cropping seasons, M. vitrata infestation was found to be higher during Maha and Off seasons compared to Yala. The findings of this study contribute to the identified knowledge gap regarding the field biology of an acknowledged important pest, M. vitrata, in a previously understudied crop in Sri Lanka. Elsevier 2015-09-21 /pmc/articles/PMC4939760/ /pubmed/27441212 http://dx.doi.org/10.1016/j.heliyon.2015.e00014 Text en © 2015 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Jayasinghe, R.C.
Premachandra, W.T.S. Dammini
Neilson, Roy
A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title_full A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title_fullStr A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title_full_unstemmed A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title_short A study on Maruca vitrata infestation of Yard-long beans (Vigna unguiculata subspecies sesquipedalis)
title_sort study on maruca vitrata infestation of yard-long beans (vigna unguiculata subspecies sesquipedalis)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4939760/
https://www.ncbi.nlm.nih.gov/pubmed/27441212
http://dx.doi.org/10.1016/j.heliyon.2015.e00014
work_keys_str_mv AT jayasingherc astudyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis
AT premachandrawtsdammini astudyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis
AT neilsonroy astudyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis
AT jayasingherc studyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis
AT premachandrawtsdammini studyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis
AT neilsonroy studyonmarucavitratainfestationofyardlongbeansvignaunguiculatasubspeciessesquipedalis