23 Kas 2024 Cumartesi
Evaluation of the efficacy of Neem Seed Oil (NSO) extract for the control of Dermestes maculatus Degeer, 1774 (Coleoptera: Dermestidae) in Clarias gariepinus (Burchell, 1822) (Pisces: Claridae)
Abstract :The efficacy of Neem Seed Oil (NSO) in controlling dried fish pest against Dermestes maculatus was investigated in the laboratory. Four concentrations of ethanolic extracts of NSO: 0.125, 0.146, 0.180 mls were rubbed on the body surface of dried Clarias gariepinus. The results showed that the fish were protected for 6 months against D. maculatus. The efficacy of treatments was however, dosage dependent. The LD50 was 0.125 while 0.275ml significantly halted hatchability and development. A 100% adult mortality rate was recorded at high doses within the first 10 days. NSO was therefore recommended at appropriate dosage for the prevention of insect infestation of dried fish
Smoked fish, Neemseed oil, control, Dermestes maculatus