In West Africa, especially Nigeria, Benin Republic, Togo and Ghana, dried yam chips constitute an important food material. The recent introduction of the larger grain borer into Africa and its devastating effect on cassava chips necessitated a study of the biology and damage caused by Prostephanus truncatus (Horn) (Coleoptera: Bostrichidea) and Araecerus fasciculatus (Degeer) (Coleoptera: Anthribidea) on dried yam chips in Ghana. Three yam varieties were investigated in the studies; these were: “Asaana” and “Pona” (Dioscorea rotundata Poir) and “Afasie” (Dioscorea alata L.). The dried yam chips were obtained following different treatments as follows: Parboiled oven-dried, Non-parboiled oven-dried, Parboiled sun-dried and Non-parboiled sun-dried. Two hundred grammes of each treatment of dried yam chips were placed in a glass jar and ten insects of P. truncatus and A. fasciculatus were placed in each separately as single cultures. Mixed cultures with a starting population of twenty insects: ten insects from each species of P truncatus and A. fasciculatus and a control were also set up. The studies were carried out for three durations: one month, two months and three months at 30 ± 3°c and 70 - 92% R.H. The proximate compositions of dried yam chips were also investigated before and after infestation by P truncatus and A. fasciculatus. P. truncatus survived and established on all the treatments processed from the three varieties of yams. However, A. fasciculatus did not survive on oven-dried yam chips, but survived and established on sun-dried yam chips. Ten adults of P. truncatus (age 0-7days) produced 578 progeny and ten adults of A. fasciculatus (age 0-14 days) produced 328 progeny after three months of storage.
SOLOMON, D (2021). Studies On Damage By Prostephanus Tr Unca Tus(Jhorn) (Coleoptera: Bostrichidae) And Araecerus Fascicula Tus Pe G E E R ) (Coleoptera: Anthribidae) To Dried Yam Chips. Afribary. Retrieved from https://afribary.com/works/studies-on-damage-by-prostephanus-tr-unca-tus-jhorn-coleoptera-bostrichidae-and-araecerus-fascicula-tus-pe-g-e-e-r-coleoptera-anthribidae-to-dried-yam-chips
SOLOMON, DANJUMA "Studies On Damage By Prostephanus Tr Unca Tus(Jhorn) (Coleoptera: Bostrichidae) And Araecerus Fascicula Tus Pe G E E R ) (Coleoptera: Anthribidae) To Dried Yam Chips" Afribary. Afribary, 15 Apr. 2021, https://afribary.com/works/studies-on-damage-by-prostephanus-tr-unca-tus-jhorn-coleoptera-bostrichidae-and-araecerus-fascicula-tus-pe-g-e-e-r-coleoptera-anthribidae-to-dried-yam-chips. Accessed 24 Nov. 2024.
SOLOMON, DANJUMA . "Studies On Damage By Prostephanus Tr Unca Tus(Jhorn) (Coleoptera: Bostrichidae) And Araecerus Fascicula Tus Pe G E E R ) (Coleoptera: Anthribidae) To Dried Yam Chips". Afribary, Afribary, 15 Apr. 2021. Web. 24 Nov. 2024. < https://afribary.com/works/studies-on-damage-by-prostephanus-tr-unca-tus-jhorn-coleoptera-bostrichidae-and-araecerus-fascicula-tus-pe-g-e-e-r-coleoptera-anthribidae-to-dried-yam-chips >.
SOLOMON, DANJUMA . "Studies On Damage By Prostephanus Tr Unca Tus(Jhorn) (Coleoptera: Bostrichidae) And Araecerus Fascicula Tus Pe G E E R ) (Coleoptera: Anthribidae) To Dried Yam Chips" Afribary (2021). Accessed November 24, 2024. https://afribary.com/works/studies-on-damage-by-prostephanus-tr-unca-tus-jhorn-coleoptera-bostrichidae-and-araecerus-fascicula-tus-pe-g-e-e-r-coleoptera-anthribidae-to-dried-yam-chips