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  • The suitability of wheat grain and grain of three less common cereals as hosts for the rice weevil (Sitophilus oryzae [L.]) (Coleoptera: Curculionidae)
    Bohinc, Tanja ...
    The aim of the present study was to test the suitability of different grain commodities, i.e., common wheat (Triticum aestivum), millet (Panicum miliaceum), spelt (Triticum aestivum ssp. spelta), and ... buckwheat (Fagopyrum esculentum) as hosts for the rice weevil (Sitophilus oryzae). We monitored weevil mortality and progeny emergence. Two different amounts of grains (50 g and 100 g) were applied. The experimental units were stored at three temperatures (15, 20, and 25 °C) and at two relative humidities (RHs) (55 and 75%), for a total of six combinations. Mortality was assessed on the 7th, 14th and 21st days after exposure. After 56 days, we determined progeny emergence. We determined that weevil mortality was correlated to temperature, RH, grain commodity, grain quantity and exposure duration. In general, mortality counts were higher at lower grain quantities. The mortality and progeny emergence were highest in wheat grain, since wheat grain is the most suitable host. Progeny production (emergence) was highest at 25 °C. Only a few individuals emerged from buckwheat and millet.
    Source: Journal of Stored Products Research. - ISSN 0022-474X (Vol. 105, art. 102239, 2024, 6 str.)
    Type of material - article, component part ; adult, serious
    Publish date - 2024
    Language - english
    COBISS.SI-ID - 179720963

    Link(s):

    https://www.sciencedirect.com/science/article/pii/S0022474X23001650
    Repository of the University of Ljubljana – RUL

source: Journal of Stored Products Research. - ISSN 0022-474X (Vol. 105, art. 102239, 2024, 6 str.)

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