Contact: +91-9711224068
Journal of Entomology and Zoology Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2019, Vol. 7, Issue 3
Bio-efficacy of some plant oil extracts as surface protectant against leather beetle, Dermestes maculatus (De geer) on smoked fish of Clarias gariepinus

AI Nta, AB Andem, CI Okererke and CO Odey

The oil extract of Corchorus olitorius, Solanum nigrum, Lycopersicon esculentum and Telferia occidentalis were applied respectively at concentrations of 0, 2%, 4%, 6% and 8% to the disinfected muscle of smoked Clarias gariepinus. Forty four adults (22 males and 22 females) of newly emerged Dermestes maculatus (0-24hrs old) were introduced into the plastic plates, each containing 40grams of treated and untreated smoked catfish. The plastic plates were covered immediately with muslin cloth to prevent the insect from escaping and ensuring aeration. Insect infected smoked catfish, C. gariepinus in plastic plates without any of the oil extracts served as control. Each treatment was replicated thrice and laid out in a completely randomized design. Evaluation of the potency of the oil extracts was based on the adult insect mortality, percentage egg hatchability, death of larvae and pupae formation. The weight loss in fish muscle in the treated and untreated samples were compared as index of fish damage during storage. The results showed that oil extract of T. occidentalis, C. olitorius, and S. nigrum were significantly (p<0.05) effective in killing all the adults, eggs, larvae and pupae of D. maculatus while the effect of oil extract from L. esculentum were not significantly different (p>0.05) from the untreated (control). The percentage weight loss in fish during storage shows a significant increase (p<0.05) in fish treated with the plant oil extract from L. esculentum and the untreated (control) fish compare with the fish treated with oil extract from T. occidentalis, C. olitorius, S. nigrum. This study revealed that oil extract from T. occidentalis, C. olitorius and S. nigrum were capable of controlling the different stages of D. maculatus in smoked fish (Clarias gariepinus) during storage.
Pages : 51-56 | 876 Views | 107 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
AI Nta, AB Andem, CI Okererke, CO Odey. Bio-efficacy of some plant oil extracts as surface protectant against leather beetle, Dermestes maculatus (De geer) on smoked fish of Clarias gariepinus. J Entomol Zool Stud 2019;7(3):51-56.

Call for book chapter
Journal of Entomology and Zoology Studies
Please use another browser.