期刊
INTERNATIONAL JOURNAL OF PEST MANAGEMENT
卷 66, 期 2, 页码 131-141出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09670874.2019.1576950
关键词
essential oils; nematicidal compounds; cinnamon; ginger; holy basil
类别
Plant parasitic nematodes are among the most destructive plant pathogens worldwide and their control is very challenging. Plant essential oils (EOs) have showed a great potential in nematode control. In this work, EOs from 10 aromatic plants acclimatized in Togo were assessed in vitro for their nematicidal activity on the root-knot nematode Meloidogyne incognita. EOs were subsequently analyzed by GC-MS and compounds were tested individually on nematodes. The most potent EOs were: Ocimum sanctum L., Cymbopogon schoenanthus (L.) Spreng and Cinnamomum zeylanicum Blume with EC50/72h values of 282 +/- 53, 288 +/- 30 and 355 +/- 126 mg/L, respectively. The EC50/48h values of tested compounds were 81 +/- 14, 117 +/- 33, 128 +/- 42, 141 +/- 47, 168 +/- 40, 216 +/- 86 and 235 +/- 43 mg/L for cinnamyl acetate, methyl eugenol, cinnamyl alcohol, acetyl eugenol, isoeugenol, eugenol and benzyl benzoate, respectively. Furthermore, we found a synergistic nematicidal activity when we combined phenylpropanoids compounds with carvone. EOs and their constituents described herein merit further studies, especially in pot experiments before serving as nematicides.
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