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			Okra Abelmoschus esculentus (L.) Moench (Malvales: Malvaceae) is a major fruit vegetable consumed in either fresh or dried form in Africa. As part of our efforts to identify the pestiferous species attacking dried fruits, a laboratory experiment was conducted to investigate the damage potentials of Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae) and Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) against dried okra. Three levels of infestations (5, 10 and 20 adults of each insect) on dried okra and okra without insect infestation, which served as control were kept under ambient conditions. The experiment was laid out in completely randomized design and replicated thrice. Data were collected on percentage insect mortality, okra weight loss and proximate composition. Percentage mortality increased with storage duration, while weight loss was significantly affected by insect infestation levels and ranged from 0.04%-0.18%, 0.07%-0.21%, 0.08% 0.22%, 0.07%-022%, 0.11% 0.22% and 0.12%-0.23% for 1, 2, 3, 4, 5 and 6 weeks after infestation, respectively. Crude fibre significantly increased with insect infestation (13.98%-14.62% for the infested okra compared with 9.12%-13.63% in the control), while other proximate components were not significantly affected. The results show that the two species pose no serious threat to intact dried okra, in the short term, but long term multiple generation infestation of dried okra by the insects may cause greater damage.			

revista brasileira de gestão ambiental e sustentabilidade

How pestiferous are maize weevil Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae) and rust-red flour beetle Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) against dried okra Abelmoschus esculentus (L.) Moench (Malvales: Malvaceae) fruit?