| Impact ID | 8780 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Watercress (Nasturtium officinale) produces a chemical defense that deters generalist feeders, such as the amphipod Gammarus pseudolimnaeus, the caddisflies Hesperophylax designates and Limnephilus spp., and the physid snail Physella spp.. |
| Reference | 42549 |
| Cost | |
| Location | |