Pests of stored beans and their economic importance in Latin America

Although bean production in Latin America averaged 3.86 million/yr in 1968-71, literature on bean storage and storage losses in this regions is virtually nonexistent. Among the most important storage pests are Acanthoscelides obtectus and Zabrotes subfaciatus. These 2 especies are similar but differ...

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Autor principal: Schoonhoven, Aart van
Formato: Conference Paper
Lenguaje:Inglés
Publicado: International Center for Tropical Agriculture 1976
Materias:
Acceso en línea:https://hdl.handle.net/10568/69880
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author Schoonhoven, Aart van
author_browse Schoonhoven, Aart van
author_facet Schoonhoven, Aart van
author_sort Schoonhoven, Aart van
collection Repository of Agricultural Research Outputs (CGSpace)
description Although bean production in Latin America averaged 3.86 million/yr in 1968-71, literature on bean storage and storage losses in this regions is virtually nonexistent. Among the most important storage pests are Acanthoscelides obtectus and Zabrotes subfaciatus. These 2 especies are similar but differ in oviposition behavior, in that A. obtectus drops the eggs among the seeds, whereas Z subfasciatus attaches them to the seed coat. A. obtectus is a pest in colder areas (higher altitudes or higher latitudes) infesting beans in the field and in storage, while Z. subfasciatus is confined to warmer areas and is a warehouse pest that does not attack beans in undamaged pods. Several minor pests reported in the literature to occur on stored beans may have been found on them accidentally. In a survey of 30 warehouses in Colombia, the av storage period for beans was 44 days. Although bruchids were considered the major storage problem, only 60 percent of the warehouses are fumigated. In 20 percent of the warehouses, beans had been attacked by storage insects. It is hypothesized that due to the high susceptibility of beans to storage pests and the high value of the product, beans are stored for short periods. Under this system few losses from insect attacks occur. (AS)
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spelling CGSpace698802025-11-05T17:48:36Z Pests of stored beans and their economic importance in Latin America Schoonhoven, Aart van phaseolus vulgaris acanthoscelides obtectus zabrotes subfasciatus stored grain pests storage insect biology chemical control Although bean production in Latin America averaged 3.86 million/yr in 1968-71, literature on bean storage and storage losses in this regions is virtually nonexistent. Among the most important storage pests are Acanthoscelides obtectus and Zabrotes subfaciatus. These 2 especies are similar but differ in oviposition behavior, in that A. obtectus drops the eggs among the seeds, whereas Z subfasciatus attaches them to the seed coat. A. obtectus is a pest in colder areas (higher altitudes or higher latitudes) infesting beans in the field and in storage, while Z. subfasciatus is confined to warmer areas and is a warehouse pest that does not attack beans in undamaged pods. Several minor pests reported in the literature to occur on stored beans may have been found on them accidentally. In a survey of 30 warehouses in Colombia, the av storage period for beans was 44 days. Although bruchids were considered the major storage problem, only 60 percent of the warehouses are fumigated. In 20 percent of the warehouses, beans had been attacked by storage insects. It is hypothesized that due to the high susceptibility of beans to storage pests and the high value of the product, beans are stored for short periods. Under this system few losses from insect attacks occur. (AS) 1976 2016-01-18T13:33:55Z 2016-01-18T13:33:55Z Conference Paper https://hdl.handle.net/10568/69880 en Open Access application/pdf International Center for Tropical Agriculture SCHOONHOVEN, A. VAN. 1976. Pests of stored beans and their economic importance in Latin America. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 26 p.
spellingShingle phaseolus vulgaris
acanthoscelides obtectus
zabrotes subfasciatus
stored grain pests
storage
insect biology
chemical control
Schoonhoven, Aart van
Pests of stored beans and their economic importance in Latin America
title Pests of stored beans and their economic importance in Latin America
title_full Pests of stored beans and their economic importance in Latin America
title_fullStr Pests of stored beans and their economic importance in Latin America
title_full_unstemmed Pests of stored beans and their economic importance in Latin America
title_short Pests of stored beans and their economic importance in Latin America
title_sort pests of stored beans and their economic importance in latin america
topic phaseolus vulgaris
acanthoscelides obtectus
zabrotes subfasciatus
stored grain pests
storage
insect biology
chemical control
url https://hdl.handle.net/10568/69880
work_keys_str_mv AT schoonhovenaartvan pestsofstoredbeansandtheireconomicimportanceinlatinamerica