Mortality of the bean bruchid, Acanthoscelides obtectus (Say), in some high carbon dioxide atmospheres

The bean bruchid, Acanthoscelides obtectus (Say), is a major storage pest of grain legumes in many countries. The study was aimed at providing empirical data to show the effectiveness of high carbon dioxide (CO2) atmospheres in the control of A. obtectus. The mortality of adults, eggs, larvae and pu...

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Bibliographic Details
Published in:Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz (1970) 1993, Vol.100 (2), p.165-169
Main Authors: Ofuya, T.I. (Federal Biological Research Centre for Agriculture and Forestry, Berlin (Germany). Inst. for Stored Product Proection), Reichmuth, C
Format: Article
Language:English
Subjects:
ACANTHOSCELIDES OBTECTUS
Aktivitaet
Biological and medical sciences
Coleoptera
CONTROL DE PLAGAS (PROD ALM)
DIOXIDO DE CARBONO
DIOXYDE DE CARBONE
Fundamental and applied biological sciences. Psychology
Insektizid
Invertebrates
Leguminose
LUTTE ANTIPARASITE (ENTREPOSAGE)
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
Pests of stored products
PLAGAS DE PRODUCTOS ALMACENADOS
RAVAGEUR DES DENREES ENTREPOSEES
Vigna unguiculata
Vorrat
Wirkstoff
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Summary:The bean bruchid, Acanthoscelides obtectus (Say), is a major storage pest of grain legumes in many countries. The study was aimed at providing empirical data to show the effectiveness of high carbon dioxide (CO2) atmospheres in the control of A. obtectus. The mortality of adults, eggs, larvae and pupae of the bruchid was observed in four different high CO2 in air atmospheres (88 % CO2 in air, 70 % CO2 in air, 60 % CO2 in air and 50 % CO2 in air), at 25 degrees C and 32 degrees C, respectively, and 70 % RH. All development stages of the pest were killed in 5 days at 25 degrees C and 3 days at 32 degrees C in the 88 % CO2 in air atmosphere, in 10 days at 25 degrees C and 7 days at 32 degrees C in the 70 % CO2 in air atmosphere, and in 12 days at 25 degrees C and 7 days at 32 degrees C in both the 60 % CO2 and 50 % CO2 in air atmospheres. The old larvae and pupae were the most tolerant to high CO2, and the adults and eggs, the least tolerant. The mortality of A. obtectus in high CO2 was, therefore, generally influenced by the level of CO2, the stage of insect development, exposure period and temperature
ISSN:0340-8159