Table 4.
Plants with repellent activity against Ixodes ricinus and some of their major chemical constituents which might contribute to their activity
| Plant essential oil | Family | Plant part | Chemical ingredients | % repellency | References |
|---|---|---|---|---|---|
| Cymbopogon spp. (10% (w/w) in ethanol) | Poaceae | Commercial oil (Stockholms Aether & Essence fabrik) | Citronellol, Geraniol | 90 after 6 h | Thorsell et al. (2006) |
| Syzygium aromaticum (10% (w/w) in ethanol) | Myrtaceae | Commercial oil (Stockholms Aether & Essence fabrik | Eugenol | 82 after 6 h | Thorsell et al. (2006) |
| Rhododendron tomentosum (10% in acetone) | Ericaceae | Leaves | Palustrol (22.8%), Myrcene (21.3%), Ledol (6.1%), 2,6-Dimethyl-1,5,7-octatriene-3-ol (4.1%), Alloaromadendrene (2.8%) | 95.1 (laboratory experiment) | Jaenson et al. (2005) |
| Myrica gale (10% in acetone) | Myricaceae | Leaves | (3Z)-Hexenol (18.3%), 4-Hydroxy-4-methylpentane-2-one (10.2%), Cadinadiene (8.4%), α-Trpineol (6.2%), 4-Terpineol (5.8%) | 48.5 (laboratory experiment) | Jaenson et al. (2005) |
| Corymbia citriodora (30% in acetone for field experiment) | Myrtaceae | cis- and trans- p-Menthane-3,8-diol (PMD) | 100 (laboratory experiment), 85 (field experiment) | Jaenson et al. (2006) | |
| Pelargonium graveolens (30% in 1,2-propanediol) | Geraniaceae | No chemical composition reported | 100 (laboratory experiment) | Jaenson et al. (2006) | |
| Lavandula angustifolia (30% in 1,2-propanediol) | Lamiaceae | No chemical composition reported | 100 (laboratory experiment) | Jaenson et al. (2006) | |
| Mentha spicata (0.1% w/v in hexane) (15% µg/cm2 for lab experiment, 6.5 µg/cm2 for field experiment) | Lamiaceae | Leaves | Carvone (54.7%), Pulegone (14.2%), 1,8-Cineole (4.7%) | 93.2 (laboratory experiment), 59.4 (field experiment) | El-Seedi et al. (2012) |
| Ocimum basilicum (0.1% w/v in hexane) (15% µg/cm2) | Lamiaceae | Leaves | Linalool (27.8%), Estragole (12.3%), Methyl trans cinnamate (11.8%), Eugenol (9%), 1,8-Cineole (6.6%) | 64.5 (laboratory experiment) | El-Seedi et al. (2012) |
| Rosmarinus officinalis (0.1% w/v in hexane) (15% µg/cm2 for lab experiment, 6.5 µg/cm2 for field experiment) | Lamiaceae | Leaves | 1,8-Cineole (51.8%), Borneol (17.5%), Camphor (12.8%) | 100 (laboratory experiment), 68.3 (field experiment) | El-Seedi et al. (2012) |
| Origanum majorana (0.1% W/V in hexane) (15% µg/cm2) | Lamiaceae | Leaves | 4-Terpineol (55.6%), α-Terpineol (9.5%), Linalool (3.7%) | 84.3 (laboratory experiment) | El-Seedi et al. (2012) |