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Table 1 Percentage mortality of D. maculatus treated larvae with V. amygdalina and T. diversifolia leaves powder

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]

Exposure time (hours) Plant powders Mortality percentage (mean ± SE)
Concentration (g)/100 g of smoked catfish
1 3 6 9 12
24 T. diversifolia 27.50 ± 1.25bc 40.00 ± 2.04bc 52.50 ± 2.35b 60.00 ± 3.04bc 82.50 ± 3.35bc
  V. amygdalina 20.00 ± 2.04b 30.00 ± 2.04b 42.50 ± 2.35b 52.50 ± 2.35b 77.50 ± 3.25b
48 T. diversifolia 37.50 ± 2.25 cd 50.00 ± 2.50 cd 67.50 ± 3.15 cd 77.50 ± 3.25c 90.00 ± 3.04 cd
  V. amygdalina 30.00 ± 2.04bc 42.50 ± 2.35bc 60.00 ± 3.04c 72.50 ± 3.35c 87.50 ± 3.25 cd
72 T. diversifolia 50.00 ± 3.08ef 67.50 ± 3.25de 80.00 ± 3.04ef 90.00 ± 3.04d 100.00 ± 0.00d
  V. amygdalina 42.50 ± 2.35de 60.00 ± 3.04d 72.50 ± 3.35de 87.50 ± 3.25d 97.50 ± 2.25d
96 T. diversifolia 62.50 ± 3.35f 82.50 ± 3.35f 92.50 ± 3.35f 100.00 ± 0.00d 100.00 ± 0.00d
  V. amygdalina 57.50 ± 3.25f 72.50 ± 2.35ef 87.50 ± 3.25f 97.50 ± 2.25d 100.00 ± 0.00d
  Control 00.00 ± 0.00a 00.00 ± 0.00a 00.00 ± 0.00a 00.00 ± 0.00a 00.00 ± 0.00a
  1. Mean followed by the same letters within the same column are not significantly different (P > 0.05)
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