Some factors affecting egg-laying of the granary weevil (Sitophilus granarius L.)

Niewiada, A.; Nawrot, J.; Szafranek, Janusz; Szafranek, Beata; Synak, E.; Jeleń, Henryk H.; Wąsowicz, E.

doi:10.1016/j.jspr.2004.11.001

Cited by 32 publications

(20 citation statements)

References 15 publications

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“…In fact, egg aggregation decreases with egg density and increases with female density (Legg et al 1987;Danho et al 2002), and field studies and laboratory investigations circumventing such conditions indicate a prevalence of around two eggs per seed in Sitophilus spp. (Pedersen 1979;Stubbs & Abood 1983;Throne 1994;Campbell 2002;Niewiada et al 2005). These results are in accordance with the optimal egg density reported here for S. zeamais.…”

Section: Discussionsupporting

confidence: 89%

Contest behaviour of maize weevil larvae when competing within seeds

Guedes¹,

Guedes²,

Campbell³

et al. 2010

Animal Behaviour

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Section: Discussionsupporting

confidence: 89%

Contest behaviour of maize weevil larvae when competing within seeds

Guedes¹,

Guedes²,

Campbell³

et al. 2010

Animal Behaviour

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“…Insects that spend a considerable part of their life inside of wheat kernel decrease the amount of endosperm (Liscombe, 1962). Sitophilus granarius develops inside the kernel as larvae, and consumes primarily endosperm and germ layers, and consequently causes a decrease in the ratio of endosperm to bran (Ghaedian & Wehling, 1996;Nawrot et al, 2006;Niewiada et al, 2005). These could be the reason for the increased protein and ash contents and decreased test and kernel weights and fat content.…”

Section: Wheat Propertiesmentioning

confidence: 99%

“…Free fatty acids can be produced by hydrolysis of lipids under unsuitable storage conditions (Özkaya & Özkaya, 2005). In addition to these factors, S. granarius creates holes in the grain, and thus oxygen may come into contact with the internal parts of the grain, causing rancidity and off-flavors (Mebarkia et al, 2009;Niewiada et al, 2005;Sánchez-Mariñez et al, 1997). All of these may be factors that contribute to the great increases in the acidity value of the infested wheat samples.…”

Section: Wheat Propertiesmentioning

confidence: 99%

“…Wheat weevils (Sitophilus granarius L.), also known as grain weevils or granary weevils, are one of the most harmful pests of stored grain, especially in temperate regions (Niewiada et al, 2005;Yildirim, Aslan, Emsen, Cakir, & Ercisli, 2012). The infestation of S. granarius causes serious quantitative and qualitative losses due to insects feeding on grains, reduction of nutritional and esthetic value, and the contamination of grain (Germinara, De Cristofaro, & Rotundo, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Effect of storage and insect infestation on the technological properties of wheat

Keskin

Özkaya

2014

CyTA - Journal of Food

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The objective of this study was to evaluate how storage and Sitophilus granarius L. infestation affects technological properties of wheat samples. Wheat samples were infested with S. granarius at a rate of 2 adults/kg, and stored for 6 months at 30 ± 1°C and 70 ± 5% relative humidity. At monthly intervals, samples of wheat were collected and evaluated for insect population, and physical, chemical, and physicochemical properties. Additionally, white flour samples obtained from these wheat samples were evaluated. None of the analyses, except acidity, performed on the pest-free samples revealed any noticeable change during the storage period. Due to the increasing insect population, kernel and test weights, fat content decreased, but ash and protein contents, acidity value increased in the wheat samples. In the flour samples, ash and protein contents, acidity value increased, while fat and gluten contents, gluten index, and sedimentation values decreased. As a result of these changes, bread properties deteriorated.Keywords: Sitophilus granarius L; wheat quality; flour properties; baking quality El objetivo del presente estudio consistió en evaluar cómo el almacenamiento y la infestación de muestras de trigo con Sitophilus granarius L. afectaron las propiedades tecnológicas del mismo. Las muestras de trigo fueron infestadas con S. granarius a razón de 2 adultos por kg, siendo almacenadas durante 6 meses a temperaturas de 30 ± 1°C, con una humedad relativa de 70 ± 5%. Mensualmente, se recogieron y evaluaron las muestras de trigo, a fin de determinar su población de insectos y sus propiedades físicas, químicas y fisicoquímicas. Asimismo, se evaluaron muestras de trigo blanco obtenidas a partir de estas muestras de trigo. En los análisis realizados a las muestras sin insectos no se detectaron cambios notables ocurridos durante el periodo de almacenamiento, excepto en lo que tiene que ver con su acidez. Debido al incremento de la población de insectos, en las muestras de trigo disminuyó tanto el peso de los granos como el contenido de grasas, a la vez que aumentaron el contenido de ceniza y de proteínas, además del valor de la acidez. En las muestras de harina, aumentó el contenido de ceniza y de proteínas, así como también el valor de la acidez, mientras que disminuyeron el contenido de grasas y de gluten, el índice de gluten y los valores de sedimentación. Como resultado de estos cambios, se deterioraron las propiedades del pan.

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“…High values of these parameters are correlated with a high quality of food for the given species of beetles (Niewiada et al, 2005;Park et al, 2008;Nawrot et al, 2010;Nietupski et al, 2013). Our results suggest that buckwheat achenes create a habitat that is not very appealing to grain weevil.…”

Section: Physicochemical Properties Of Achenes Of Buckwheat Cultivarsmentioning

confidence: 99%

Physicochemical properties of achenes of buckwheat cultivars affecting the development of grain weevil (Sitophilus granarius L.) and lesser grain borer (Rhyzopertha dominica F.)

Nietupski

Kwiatkowski

Kosewska

2017

Zemdirbyste-Agriculture

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The development of two storage pests, grain weevil (Sitophilus granarius L.) and lesser grain borer (Rhyzopertha dominica F.), was studied on achenes of buckwheat representing two species: common buckwheat ('Red Corolla', 'Karmen' and 'La Harpe') and tartary buckwheat (Olsztyn, Lublin and Chinese accessions). The analysis included most important physical characteristics (thousand seed weight, husk content and thickness), and basic chemical composition of buckwheat seeds and husks (crude ash, crude fibre, total protein and total flavonoids). Based on the assessment of the development parameters of R. dominica and S. granarius, an attempt was made to determine which physicochemical characteristics of buckwheat achenes affected the development of these beetles. The results suggest that buckwheat achenes are a habitat in which both species of beetles can develop albeit at different dynamics. R. dominica found suitable conditions for the development on tartary buckwheat achenes, whereas achenes of common buckwheat proved to be a less favourable habitat. With respect to S. granarius, only single individuals completed their development on achenes of both buckwheat species, which indicates that this food source is a rather unattractive habitat for the lesser grain borer. The physical factor which deterred S. granarius from settling on buckwheat is most probably the thick husk of achenes. However, this feature is not a barrier to the lesser grain borer, and the properties which can contribute to the toughness of food (i.e. the per cent share of husk in the whole achene, husk thickness and content of crude fibre) can be decisive factors in beetles accepting or not a given buckwheat accession. Other traits which significantly affected the development of this pest included higher concentrations of total protein and total flavonoids in seeds.

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Some factors affecting egg-laying of the granary weevil (Sitophilus granarius L.)

Cited by 32 publications

References 15 publications

Contest behaviour of maize weevil larvae when competing within seeds

Contest behaviour of maize weevil larvae when competing within seeds

Effect of storage and insect infestation on the technological properties of wheat

Physicochemical properties of achenes of buckwheat cultivars affecting the development of grain weevil (Sitophilus granarius L.) and lesser grain borer (Rhyzopertha dominica F.)

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