Elimination of the Common Bean Weevil Acanthoscelides obtectus (Say) by Hermetic Storage of Dry Common Bean at Different Moisture Contents
Por:
García-Perea M.A., Jiménez-AMBRÍZ S., Castillo-GONZÁLEZ F., Méndez-Albores A., Moreno-MARTÍNEZ E.
Publicada:
1 ene 2014
Resumen:
The objective of this research was to determine the required storage
time as well as the dry common bean (Phaseolus vulgaris L., Fabaceae)
moisture content, to favor oxygen depletion and carbon dioxide increment
for elimination of all stadia of the common bean weevil Acanthoscelides
obtectus (Say) (Coleoptera: Bruchidae). Experimental units with 150 g of
dry bean (with moisture content around 10, 12, and 16%) infested with
20 adult insects were stored 21 d under hermetic and non-hermetic
conditions. Oxygen/carbon dioxide levels, moisture content, insect
mortality of initial infestation, emergence of the insects from the
first generation (F-1) and percentage of damaged dry bean were
registered. In non-hermetic storage, the dry bean presented up to 395
insects from F-1; and with damage up to 51.1%. Oxygen and carbon
dioxide levels which did not allow the development (F-1 emergence) of A.
obtectus and the subsequent damage to the dry bean were between 0.5 -
3.5% and 8.9 - 9.7%, respectively. Hermetic storage system after 6, 9
and 12 d did not showed damage for moisture contents of 10, 12 and 16%
respectively. With low moisture contents of the grain, there is lower
consumption of oxygen and less carbon dioxide production by adult
insects. On the contrary, with high grain moisture content insect
activity increases with more consumption of oxygen and more carbon
dioxide in less time, these results showed that high carbon dioxide and
low oxygen levels joined with low grain moisture inhibit insect
development in less time under hermetic storage.
Filiaciones:
García-Perea M.A.:
UNIGRAS, UNAM FESC, Cuautitlan 57740, Estado De Mexic, Mexico
Jiménez-AMBRÍZ S.:
UNIGRAS, UNAM FESC, Cuautitlan 57740, Estado De Mexic, Mexico
Castillo-GONZÁLEZ F.:
Colegio de Posgraduados, Campus Montecillo, Posgrado en Recursos Genéticos Y Productividad-Genética, Km 36.5 Carretera México-Texcoco, Estado de México, C.P. 56230, Mexico
Méndez-Albores A.:
UNIGRAS, UNAM FESC, Cuautitlan 57740, Estado De Mexic, Mexico
Moreno-MARTÍNEZ E.:
UNIGRAS, UNAM FESC, Cuautitlan 57740, Estado De Mexic, Mexico
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