Table 2 Insecticidal activities of the essential oil of C. zeylanicum cultivated from France and India against Ricania sp. adults and nymphsa
Samples | Stage | Time (h) | LC50 (95% CI) (mg/L) | LC90 (95% CI) (mg/L) | Slope ± SE | χ2 (df, p) |
|---|---|---|---|---|---|---|
France | Nymph | 48 | 104.95 (92.83–116.79) | 198.01 (173.46–237.81) | 4.65 ± 0.53 | 7.452 (8, 0.489) |
72 | 80.99 (59.03–91.63) | 158.90 (138.14–194.44) | 4.38 ± 0.58 | 7.535 (7, 0.375) | ||
Adults | 48 | 160.39 (139.89–178.49) | 271.92 (242.30–318.88) | 4.59 ± 0.73 | 8.876 (6, 0.181) | |
72 | 123.77 (104.83–140.31) | 226.35 (199.76–266.91) | 4.89 ± 0.62 | 9.466 (7, 0.221) | ||
India | Nymph | 48 | 76.89 (66.71–86.55) | 156.47 (136.21–188.77) | 4.15 ± 0.46 | 10.623 (9, 0.302) |
72 | 57.44 (48.49–65.45) | 121.59 (103.48–157.21) | 3.92 ± 0.56 | 4.409 (8, 0.818) | ||
Adults | 48 | 109.72 (92.10–125.17) | 206.32 (180.99–235.30) | 4.67 ± 0.60 | 9.049 (7, 0.249) | |
72 | 93.06 (80.52–104.19) | 173.48 (152.16–209.94) | 4.74 ± 0.63 | 6.248 (7, 0.511) | ||
Negative control | Nymph | 48 | –a | – | – | – |
Adults | 48 | – | – | – | – |