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Table 3 Efficacy of two essential oils in protecting dry dates against Surinam beetle, Oryzaephilus surinamensis, adults under storage conditions

From: Fumigant and toxic activity of some aromatic oils for protecting dry dates from Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) in stores

Conc.
(ml/625 cm*)
Storage period for 1  month
Ocimum basilicum Eucalyptus globulus
Mean no. alive adults ±SE % reduction in infestation % qualitative lose Mean no. alive adults ±SE % reduction in infestation % qualitative lose
10.0 19.2 ± 2.7ijk 92.4 11.55 133.0 ± 4.74hij 46.8 49.55
20.0 9.6 ± 1.12ijkl 96.2 5.33 119.4 ± 4.87ijk 52.3 42.88
40.0 0.0 ± 0.0l 100 0.0 85.2 ± 4.02kl 66.0 26.88
80.0 0.0 ± 0.0l 100 0.0 32.2 ± 3.56m 87.2 10.88
Cont. 248.8 ± 6.35e 52.44 248.8 ± 6.35e 52.44
Storage period for 2 months
 10.0 27.4 ± 3.0ijk 90.3 22.4 165.4 ± 11.52gh 41.0 75.77
 20.0 14.4 ± 2.06ijkl 94.9 8.44 161.2 ± 14.9gh 42.3 68.0
 40.0 6.0 ± 1.04kl 97.9 11.33 132.0 ± 9.23hij 52.8 55.77
 80.0 0.0 ± 0.0l 100 0.0 52.6 ± 5.52lm 81.2 34.0
 Cont. 278.4 ± 13.3c 87.11 278.4 ± 13.3c 87.11
Storage period for 3 months
 10.0 47.2 ± 6.47g 89.2 23.55 302.0 ± 6.04e 30.6 83.55
 20.0 32.2 ± 3.2ghi 92.6 20.44 266.2 ± 11.02ef 38.8 79.55
 40.0 18.4 ± 2.09ijk 95.8 14.88 230.6 ± 20.32f 47.0 74.44
 80.0 8.6 ± 1.63jkl 98.1 8.0 92.8 ± 23.8jkl 78.8 44.44
 Cont. 433.2 ± 17.59b 96.44 433.2 ± 17.59b 96.44
Storage period for 4 months
 10.0 92.2 ± 4.18e 86.8 59.11 552.6 ± 13.34b 20.5 98.0
 20.0 66.6 ± 5.08f 90.5 40.2 476.4 ± 37.42c 31.4 97.11
 40.0 45.2 ± 10.85g 93.5 36.11 420.4 ± 30.74d 39.5 88.0
 80.0 15.4 ± 1.86ijkl 97.8 12.4 197.2 ± 5.31g 71.4 68.66
 Cont. 694.0 ± 8.82a 98.44 694.0 ± 8.82a 98.44
F 761.55* 131.91*
 LSD0.05 18.38 43.78
  1. Means followed by the same letters within columns indicate no significant difference (P ≥ 0.05)
  2. *Area of the sack