Table 4.
EO | Method | LD50 a/LC50 b | 95% CI | Slope ± SE | Intercept ± SE | χ 2 (df) |
---|---|---|---|---|---|---|
A. annua | Contact | 0.79 | 0.65–1.13 | 3.62 ± 0.84 | 0.38 ± 0.25 | 2.98 (2) |
Fumigation | 88.09 | 75.07–107.94 | 10.65 ± 1.58 | -20.71 ± 3.05 | 5.68 (3) | |
A. dracunculus | Contact | 0.49 | 0.33–0.68 | 5.16 ± 0.81 | 1.62 ± 0.27 | 6.31 (3) |
Fumigation | 49.55 | 44.28–54.33 | 6.48 ± 0.82 | -10.98 ± 1.45 | 3.07 (2) |
Abbreviations: CI confidence interval, df degrees of freedom, SE standard error
Note: Values in bold indicate P > 0.05)
aDose of EO that kills 50% of the insects treated by direct contact
bConcentration of EO that kills 50% of the insects treated by fumigation. Data were calculated by Probit regression analysis and expressed as μl insect-1 for contact tests and as μl l-1 air for fumigation tests