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| Chemical Name | Dosage | Reference |
|---|---|---|
| ZANTHOPHYLLINE | not available | Jacobson, M., Glossary of Plant-Derived Insect Deterrents, CRC Press, Inc., Boca Raton, FL, 213 p, 1990. |
| ZIMZIN | not available | Hanke, F. J., Natural Products as a Resource for Biologically Active Compounds, Thesis, U. Cal (Santa Cruz), 1986, 252 pp |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Tripterygium wilfordiim | Yellow Vine | 1 | 0 |
| Triticum aestivum | Wheat | 4 | 9 |
| Tropaeolum majus | Nasturtium | 2 | 0 |
| Tsuga canadensis | Eastern Hemlock | 3 | 0 |
| Turnera diffusa | Damiana | 3 | 133 |
| Tussilago farfara | Coltsfoot | 2 | 3, 600 |
| Tylophora indica | Swallowwort; Indian Ipecac | 1 | 0 |
| Ulex europaeus | Gorse | 1 | 0 |
| Ulmus rubra | Slippery Elm; Red Elm | 1 | 0 |
| Umbellularia californica | California Bay | 5 | 1, 920 |
| Uncaria catechu | Gambir; Pale Catechu | 2 | 0 |
| Uncaria guianensis | Cat's Claw; Una de Gato; Garabato Colorado; Tambor Huasca; Ungunagi | 3 | 0 |
| Uncaria tomentosa | Cat's Claw; Garabato Amarillo; Una de Gato | 3 | 0 |
| Urginea maritima | European Squill | 3 | 0 |
| Urtica dioica | European Nettle; Stinging Nettle | 8 | 40, 172 |
| Vaccinium corymbosum | Blueberry | 13 | 3, 000.019999999553 |
| Vaccinium macrocarpon | Cranberry; Large Cranberry; American Cranberry | 5 | 750 |
| Vaccinium myrtillus | Bilberry; Whortleberry; Dwarf Bilberry | 14 | 14, 100.02999999933 |
| Vaccinium vitis-idaea | Cowberry; Lingen; Lingonberry | 3 | 0 |
| Valeriana jatamansi | Indian Valerian | 1 | 0 |