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Table 5 Toxicities of V. amygdalina and T. diversifolia extracts on percentage inhibition, weight loss and adult emergence of D. maculatus

From: Responses of two plant-derived bioinsecticides as protectants of smoke-dried catfish, Clarias gariepinus [Pisces: Clariidae] against hide beetle, Dermestes maculatus (De Geer) [Coleoptera: Dermestidae]

Conc. (g) Plant extracts Mean number of surviving larvae ± SE % adult emergence ± SE % IR ± SE % Weight loss ± SE
1 T. diversifolia 1.00 ± 0.04a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
  V. amygdalina 2.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
3 T. diversifolia 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00c 0.00 ± 0.00a
  V. amygdalina 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
6 T. diversifolia 0.00 ± 0.00b 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
  V. amygdalina 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
9 T. diversifolia 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
  V. amygdalina 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
12 T. diversifolia 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00b 0.00 ± 0.00a
  V. amygdalina 0.00 ± 0.00a 0.00 ± 0.00a 100.00 ± 0.00 0.00 ± 0.00a
0.0 Control 20.00 ± 2.04b 87.50 ± 3.25b 0.00 ± 0.00a 67.50 ± 3.25b
  1. Mean followed by the same letters within the same column are not significantly different (P >0.05)
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