| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pelargonium citrosum | Shoot | -- | 10.0 | 1.5 | Matsuda, B. M., et al. 1996. Essential Oil Analysis and Field Evaluation of the Citrosa Plant 'Pelargonium citrosum' as a Repellent Against Populations of Aedes Mosquitoes. J. Am. Mosq. Contr. Assoc. 12(1):69-74. |
| Piper nigrum | Fruit | -- | -- | * | |
| Piper nigrum | Fruit Essent. Oil | -- | 1100.0 | -1.0 | * |
| Pogostemon cablin | Plant | 1261.0 | 5460.0 | 1.0 | * |
| Ptychopetalum olacoides | Root Essent. Oil | -- | 6000.0 | -1.0 | Uber Bucek, E., Fournier, G., Dadoun, H. 1987. Volatile Constituents of Ptychopetalum olacoides Root Oil. Planta Med. 53, 2: 231. |