Essential oils of Origanum vulgare L., Rosmarinus officinalis L., Thymus mastichina L., Ocimum basilicum L., Melaleuca alternifolia Maiden & Betche ex Cheel, Eucalyptus globulus Labill., Gaultheria procumbens L. and Origanum majorana L., with herbicidal effects at different doses (0.125, 0.250, 0.50 and 1 μL/mL) were tested against Cucumis sativus L. and Solanum lycopersicum L., in order to ensure their harmlessness against these Mediterranean food crops. Oregano (carvacrol 60.42%) was the most damaging essential oil, exhibiting a dose-dependent phytotoxic activity against the seed germination and seedling growth of cucumber and tomato, whereas rosemary (1,8-cineole 24.95%, camphor 20.45% and α-pinene 16.70%) essential oil was the least injurious in cucumber and tomato seed germination. The cultivated vegetable crop cucumber was more resistant to tomato at all tested essential oils. Seedling growth studies showed that the radicle was more sensitive than the hypocotyl to the essential oils. In cucumber, only M. alternifolia essential oil significantly affected the hypocotyl growth of cucumber (34.61%) at the highest dose (1 μL/mL) assayed. Rosemary essential oil could be used as pre-emergent bioherbicide in the control of weeds affecting cucumber and tomato crops.

精油牛至属，迷迭香属，胸腺mastichina L.，罗勒属，alternifolia千层少女与Betche前Cheel，蓝桉Labill，白珠procumbens的湖和甘牛至属，与除草效果针对黄瓜（Cucumis sativus L.）和番茄茄（Solanum lycopersicum）测试了不同剂量（0.125、0.250、0.50和1μL/ mL）L.，以确保它们对这些地中海粮食作物无害。牛至（香芹酚60.42％）是最具破坏性的精油，对黄瓜和番茄的种子发芽和幼苗生长表现出剂量依赖性的植物毒活性，而迷迭香（1,8-桉树脑24.95％，樟脑20.45％和α-pine烯） 16.70％的精油对黄瓜和番茄种子发芽的伤害最小。在所有测试的香精油中，种植的蔬菜作物黄瓜对番茄的抵抗力均更高。幼苗生长研究表明，胚根比下胚轴对精油更敏感。在黄瓜中，只有互花米草在测定的最高剂量（1μL/ mL）下，精油显着影响黄瓜的下胚轴生长（34.61％）。迷迭香精油可以用作发芽前的生物除草剂，用于控制影响黄瓜和番茄作物的杂草。