Essential oils from 14 species of Labiatae were steam-distilled and analyzed. Bean leaf discs freshly sprayed with different concentrations of the acetonic solutions of the oils caused mortality and induced repellency in adult females of the carmine spider mite,Tetranychus cinnabarinus (Boisd.), and egg-laying was reduced. Seven-day-old residues still had some activity.
On the basis of EC-50s, the most effective oils were:Lavandula angustifolia xL. latifolia (0.09%);L. angustifolia (0.1%);Melissa officinalis (0.12%);Mentha piperata (1.3%);Salvia fruticosa (1.4%);Ocimum basilicum (1.4%); andRosmarinus officinalis (2.2%).
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Mansour, F., Ravid, U. & Putievsky, E. Studies of the effects of essential oils isolated from 14 species of Labiatae on the carmine spider mite,Tetranychus cinnabarinus . Phytoparasitica 14, 137–142 (1986). https://doi.org/10.1007/BF02980899
- Tetranychus cinnabarinus
- beans, leaf disc method
- essential oils, repellency
- Lavandula angustifolia
- Lavandula angustifolia xL. latifolia
- Ocimum basilicum
- Majorana hortensis
- Salvia sclarea
- Salvia dominica
- Salvia fruticosa
- Salvia officinalis
- Rosmarinus officinalis
- Mentha piperata
- Mentha spicata
- Micromeria fruticosa
- Melissa officinalis
- Hyssopus officinalis