An official website of the United States government.
| Chemical Name | Dosage | Reference |
|---|---|---|
| TAGETONE | not available | Duke, 1992 * |
| TENULIN | not available | Duke, 1992 * |
| THUJIC-ACID | not available | Russell, G. B., Phytochemical resources for crop protection, N. Z. J. Technol., 2, 1986, 127-134. |
| TRACHYLOBAN-19-OIC-ACID | not available | Jacobson, M., Glossary of Plant-Derived Insect Deterrents, CRC Press, Inc., Boca Raton, FL, 213 p, 1990. |
| TRITRIACONTANE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Quercus robur | English Oak | 1 | 0 |
| Quercus rubra | Northern Red Oak | 1 | 0 |
| Quercus velutina | Black Oak | 1 | 0 |
| Ravensara aromatica | Ravensara | 1 | 170 |
| Rheum officinale | Chinese Rhubarb | 1 | 13, 000 |
| Rheum rhabarbarum | Rhubarb | 1 | 6, 000 |
| Rhododendron dauricum | Chinese Alpenrose | 1 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 1 | 0 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 2 | 0 |
| Rhus toxicodendron | Poison Ivy | 1 | 0 |
| Ribes nigrum | Black Currant | 3 | 0 |
| Ribes uva-crispa | Gooseberry | 1 | 0 |
| Ricinus communis | Castorbean | 4 | 2, 000 |
| Robinia pseudoacacia | Black Locust | 2 | 0 |
| Rosa centifolia | Cabbage Rose | 1 | 0 |
| Rosa damascena | Damask Rose | 3 | 15, 000 |
| Rosa gallica | French Rose | 2 | 4 |
| Rosa multiflora | Multiflora Rose | 1 | 0 |
| Rosa spp | Rose Hips | 1 | 0 |
| Rosmarinus officinalis | Rosemary | 2 | 0.5 |