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Table 3 Fumigant toxicity effect of J. curcas oil solution and pure oil on P. americana

From: Repellency and insecticidal properties of seed oil of Jatropha curcas L. against American cockroach, Periplaneta americana L.

Concentration

Number of death (% mortality)/time of exposure

24 h (n = 40)

48 h (n = 40)

72 h (n = 40)

96 h (n = 40)

120 h (n = 40)

0.15% (v/v) of J. curcas oil solution

2 (5.0)

4 (10.0)

4 (10.0)

6 (15.0)

8 (20.0)

0.5 ml of J. curcas (pure) oil

12 (30.0)

16 (40.0)

20 (50.0)

20 (50.0)

24 (60.0)

Control with 0.5 ml of 20% acetone

0 (0.0)

0 (0.0)

4 (10.0)

4 (10.0)

8 (20.0)

Control with 0.5 ml of water

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

  1. n = total number of cockroaches introduced in each group