Kerentanan Jenis Tepung terhadap Infestasi Kumbang Tepung Merah (Tribolium castaneum Herbst) (Coleoptera: Tenebrionidae)

Hendrival, Hendrival and Latifah, Latifah and Dedi, Saputra and Orina, Orina (2016) Kerentanan Jenis Tepung terhadap Infestasi Kumbang Tepung Merah (Tribolium castaneum Herbst) (Coleoptera: Tenebrionidae). Jurnal Agrikultura, 27 (3). pp. 148-153. ISSN 0853-2885

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Abstract

The research on the level of flour susceptibility against infestation of Tribolium castaneum has been conducted in laboratory under conditions of 28-30oC and relative humidity of 70-75%. Each type of flour was infested by 10 pairs of T. castaneum adult. Variables observation included the population growth, development period, weight losses percentage and susceptibility index. The results showed that degree of flour suitability against population growth namely wheat flour > corn flour > bran > mungbean flour > rice flour > potato flour > purple cultivar sweet potato flour > bread crumbs > glutinous rice flour > tapioca flour = sago flour. The longest median development time of T. castaneum was found in tapioca and sago flours of 86 days while the shortest was in wheat flour of 23.33 days. The highest weight loss percentage occurred on wheat and corn flours. The susceptibility level of flours to T. castaneum with resistant category included tapioca flour, corn flour, glutinous rice flour, purple cultivar sweet potato flour and bread crumbs. Mungbean flour was in moderate gategory while potato flour was in resistant to moderate category. Rice flour and bran were classified in susceptible category while corn and wheat flours were classified as highly susceptible.

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