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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Allelochemic

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
HEXAHYDRO-2H-AZEPIN-2-ONE Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar.
HYDROQUINONE IC100=2.7 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
INDOLE-3-ACETIC-ACID Korhammer, S.A. and Haslinger, E. 1994. Isolation of a Biologically Active Substance from Rhizomes of Quackgrass [Elymus repens (L.) Gould]. J. Agric. Food Chem. 42: 2048-2050.
IROLONE Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.
JUGLONE IC99=1.1 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
L-CANALINE Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
LAWSONE IC90=2.4 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
LIMONENE *
MENADIONE IC50=0.18 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
MYRICETIN IC82=1 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
NAGILACTONE-E Hanke, F. J., Natural Products as a Resource for Biologically Active Compounds, Thesis, U. Cal (Santa Cruz), 1986, 252 pp
NIVEUSIN Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar.
O-COUMARATE IC95=0.20 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
O-CRESOL IC50=0.36 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
P-COUMARATE IC50=1.2 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
P-CRESOL IC50=1.13 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
P-HYDROXYBENZOATE IC50=1.34 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
PARASORBIC-ACID *
PARASORBIC-ACID-GLUCOSIDE *
PHITHOCOL IC100=6 mM Lydon, J. & Duke, S., The potential of pesticides from plants, pp. 1-41 in Craker, L. & Simon, J., eds, Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture, & Pharmacology, v. 4, Oryx Press, Phoenix, 1989, 267pp.
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List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Origanum majorana Marjoram; Sweet Marjoram 8 207, 652
Origanum minutiflorum Small-Flowered Oregano 3 397
Origanum onites Oregano; Pot Marjoram 4 5, 316
Origanum sipyleum Bayircayi; Guveyoto 4 7, 603.599999904633
Origanum syriacum Za'Atar 4 1, 240
Origanum vulgare Greek Oregano; Wild Oregano; Common Turkish Oregano 9 480, 397
Paeonia lactiflora Chih-Shao; Peony; Common Garden Peony; White Peony; Bai Shao (Chinese) 1 0
Paeonia moutan Moutan; Tree Peony 1 0
Paeonia suffruticosa Moutan; Tree Peony; Moutan Peony 1 0
Panax ginseng Chinese Ginseng; Oriental Ginseng; Ginseng; Korean Ginseng 3 0
Panax notoginseng Sanchi Ginseng 1 0
Passiflora incarnata Manzana de Mayo; Mayapple; Passionflower 4 0
Pastinaca sativa Parsnip 5 666, 000
Paullinia cupana Guarana 1 0
Pelargonium citrosum Citrosa 2 10.600000023841858
Pelargonium graveolens Rose Geranium; Scented Geranium 3 12
Pelargonium roseum Scented Geranium 1 126
Perilla frutescens Perilla 5 420, 000
Persea americana Avocado 3 0
Petasites hybridus European Butterbur 1 0