First report on the susceptibility of certain dry Egyptian common bean (Phaseolus vulgaris L.) (Fabaceae) varieties to infestation by Acanthoscelides obtectus (Say, 1831) (Coleoptera: Chrysomelidae: Bruchinae)

Abstract

Stored dry common bean seeds are subject to infestation by Acanthoscelides obtectus, which reduces the quality of the infested seeds and depletes their nutritional value, making them unfit for human consumption. The susceptibility of three Egyptian varieties to infestation by A. obtectus was investigated. The Nebraska variety was the most susceptible, with 34.5 and 62% infestation at artificial infestation levels that included 5 and 10 pairs of insects for every fifty seeds, respectively, followed by the Karnak and Giza 6 varieties. The maximum weight losses as a result of insect infestation were observed for Nebraska seeds, and as expected, the maximum numbers of emerged adults after 50 days of storage were also observed for this variety. Maximum means of infested seeds were recorded in the Nebraska and Karnak varieties at the 10- pair infestation level. According to the infestation index, the Giza 6 and Karnak varieties were moderately resistant, while the Nebraska variety was susceptible at the 10-pair infestation level. Moreover, changes in the chemical composition of infested dry common bean seeds were inconsistent, with increases in some nutritional properties (protein and fibre contents) and decreases in others (moisture, carbohydrate and fat contents).

Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation

“…The common bean (Phaseolus vulgaris L.), family: Fabaceae, is the most essential international legume for direct human consumption and is a source of dietary fiber, calories, proteins, minerals, and vitamins for millions of people worldwide (Gad 2019). In Egypt, it is regarded as one of the most important leguminous vegetable crops, having a significant economic importance because of its use for local and international trading.…”

Susceptibility of approved rice varieties in Punjab, Pakistan to Sitophilus oryzae L. (Coleoptera: Curculionidae) and its impact on nutritional contents of rice grains

“…The high protein contents in infested stored seeds and ours might be associated with accumulating insect body fragments that are sources of harmful proteins. Moreover, the depletion of seed carbohydrate contents in insect-infested grains might also increase protein levels(Gad 2019). The fastest development of S. oryzae larvae occurs on Kissan Basmati and PK 1121 Aromatic, and Punjab Basmati rice varieties here evaluatd.…”

Primer registro de Acanthoscelides obtectus (Coleoptera: Chrysomelidae: Bruchinae) en Senna multiglandulosa (Fabaceae) de la región andina central del Perú

“…Acanthoscelides obtectus (Say, 1831), es un escarabajo del orden Coleoptera, familia Chrysomelidae, subfamilia Bruchinae de origen neotropical (Johnson & Romero, 2004;Thakur, 2012). En el mundo se reconoce como una de las plagas más importantes de semillas de Phaseolus vulgaris L. y otras especies de Fabaceae (Gad, 2019;Guzmán et al, 1996;Kaplan et al, 2018;Thakur, 2010;Vera-Graziano et al, 2011). Es una seria amenaza para las legumbres como P. vulgaris (Thakur, 2012), Acacia tortuosa (L.) Willd., Prosopis juliflora (Sw.) DC.…”