Nematicidal activity of essential oils of medicinal plants

We studied the effect of essential oils from Picea abies (Linnaeus) H. Karsten., 1881, Cinnamomum verum J. Presl, 1825, Melaleuca alternifolia (Maiden & Betche) Cheel, 1925, Citrus paradisi Macfadyen, 1830, Rosmarinus officinalis Linnaeus, 1753, Citrus aurantiifolia (Christmann) Swingle, 1913, Syzygium aromaticum (L.) Merrill & Perry, 1939, Pterocarpus santalinus Linnaeus filius, 1782, Pelargonium graveolens L’Héritier, 1789, Eucalyptus globulus Labillardière, 1861, Juniperus communis Linnaeus, 1753, Piper cubeba L.f., 1781, Calendula officinalis L., 1753, Laurus nobilis Linnaeus, 1753, Lavandula angustifolia Miller, 1768 and Citrus sinensis (Linnaeus) Osbeck (pro. sp.) on vitality of free-living larvae of Strongyloides papillosus (Wedl, 1856) and Haemonchus contortus (Rudolphi, 1803) Cobb, 1898, and also survivability of eggs of Ascaris suum (Goeze, 1782) under in vitro conditions. The most notable nematicidal properties belong to 0.5% water emulsion of essential oils from C. verum and S. aromaticum: we observed 100% mortality of larvae of S. papillosus L_1–3 and H. contortus L₃.