Skip to main content

Table 3 Antifeedant activity (FD) of 2nd instar Spodoptera littoralis larvae fed for 72 h on treated castor bean leaves by Melaleuca alternifolia EO, terpinen-4-ol and γ-terpinene at different concentrations

From: Chemical composition and bioactivities of Melaleuca alternufolia essential oil and its main constituents against Spodoptera littoralis (Boisaduval, 1833)

Treatment

Concentration (mg/L)

4000

2000

1000

500

250

Melaleuca alternifolia

67.85 ± 1.70a

55.83 ± 1.74a

49.62 ± 1.29a

40.16 ± 1.80a

34.62 ± 1.76a

Terpinen-4-ol

56.88 ± 1.82b

46.81 ± 1.73b

39.53 ± 1.72b

34.53 ± 1.87b

29.62 ± 0.99ab

γ-Terpinene

50.67 ± 1.02bc

43.45 ± 1.11bc

36.28 ± 1.44bc

31.00 ± 1.57bc

22.81 ± 0.64bc

Control

0.0 ± 0.0d

0.0 ± 0.0d

0.0 ± 0.0d

0.0 ± 0.0d

0.0 ± 0.0d

  1. Means ± SE within the same column having the same letter are not statistically different from each other, P ≤ 0.05 according to Tukey’s test. Data are averages of 4 replicates of 10 larvae each