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Research Article Open Access
Red flour beetle as a cosmopolitan and severe pest of cereals and their processed products was used in this study to see its preference toward four flour types, wheat, maize, rice and potato flours. So, biological parameters such as larval developmental time, pupal developmental time, pupae mean number, adults mean number and mean oviposition rate were estimated for the populations reared on each flour type. Then, feeding rate of adults and larvae were calculated. In the olfactory test, food location by volatile signals was tested using a four- armed olfactometer. The results through the study showed that red flour beetle had great preference toward wheat flour and significantly avoided potato flour. This revealed the susceptibility of wheat flour to this pest and high needs for severe management programs in stores against T. castaneum.
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Author(s): Neda Kheradpir
food preference, Tribolium castaneum, flour