Table 5.
Twenty-four-hour mosquito larvicidal activities of Myrtaceae essential oils.
| Essential Oil | LC50 (95% Fiducial Limits) | LC90 (95% Fiducial Limits) | χ2 | p |
|---|---|---|---|---|
| Aedes aegypti | ||||
| Baeckea frutescens leaf EO | 23.00 (20.38–25.75) | 40.05 (35.75–46.71) | 6.512 | 0.039 |
| Callistemon citrinus leaf EO | 22.37 (18.62–25.88) | 57.34 (50.00–69.06) | 0.6655 | 0.717 |
| Callistemon citrinus fruit EO | 17.27 (15.30–19.03) | 33.02 (29.82–38.04) | 0.4348 | 0.805 |
| Melaleuca leucadendra young leaf EO | nt | nt | --- | --- |
| Melaleuca leucadendra old leaf EO | 7.400 (6.308–8.612) | 18.29 (16.05–21.47) | 30.77 | 0.000 |
| Melaleuca leucadendra stem bark EO | 17.14 (14.73–19.21) | 36.25 (32.42–42.31) | 2.244 | 0.326 |
| Melaleuca leucadendra fruit EO | 13.90 (11.03–16.02) | 31.76 (28.40–37.25) | 0.5750 | 0.750 |
| Melaleuca leucadendra branch tip EO | 21.99 (19.80–24.57) | 37.63 (33.67–43.39) | 2.277 | 0.517 |
| Syzygium nervosum leaf EO | 28.63 (24.83–32.87) | 61.41 (53.99–72.38) | 3.792 | 0.285 |
| Aedes albopictus | ||||
| Baeckea frutescens leaf EO | 25.73 (23.68–28.39) | 37.01 (33.33–43.13) | 0.4209 | 0.810 |
| Callistemon citrinus leaf EO | nt | nt | --- | --- |
| Callistemon citrinus fruit EO | nt | nt | --- | --- |
| Melaleuca leucadendra young leaf EO | nt | nt | --- | --- |
| Melaleuca leucadendra old leaf EO | nt | nt | --- | --- |
| Melaleuca leucadendra stem bark EO | 19.31 (16.83–21.60) | 40.91 (36.56–47.59) | 0.5986 | 0.741 |
| Melaleuca leucadendra fruit EO | 19.17 (16.89–21.32) | 39.08 (34.96–45.47) | 4.7420 | 0.093 |
| Melaleuca leucadendra branch tip EO | nt | nt | --- | --- |
| Syzygium nervosum leaf EO | nt | nt | --- | --- |
| Culex quinquefasciatus | ||||
| Baeckea frutescens leaf EO | 81.72 (76.16–87.75 | 112.7 (104.7–123.6) | 3.097 | 0.078 |
| Callistemon citrinus leaf EO | 73.60 (64.87–85.83) | 172.2 (135.9–249.1) | 57.10 | 0.000 |
| Callistemon citrinus fruit EO | 17.30 (11.04–22.56) | 77.42 (66.07–95.50) | 63.93 | 0.000 |
| Melaleuca leucadendra young leaf EO | 46.62 (42.65–51.45) | 70.10 (62.93–82.10) | 0.2083 | 0.648 |
| Melaleuca leucadendra old leaf EO | 6.618 (3.635–9.183) | 32.80 (27.99–40.13) | 5.474 | 0.361 |
| Melaleuca leucadendra stem bark EO | 21.35 (13.62–28.02) | 100.2 (84.4–126.2) | 86.78 | 0.000 |
| Melaleuca leucadendra fruit EO | 26.20 (19.47–32.30) | 91.81 (78.04–114.46) | 46.32 | 0.000 |
| Melaleuca leucadendra branch tip EO | 43.69 (40.13–47.81) | 64.43 (58.27–74.71) | 0.02181 | 0.883 |
| Syzygium nervosum leaf EO | 46.09 (40.59–52.38) | 95.07 (84.44–109.96) | 1.061 | 0.786 |
LC50 and LC90 in μg/mL. nt = not tested.