| Impact ID | 7059 |
| Impact Type | Other |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Hydrilla verticillata interferes with a wide variety of commercial operations. Thick mats hinder irrigation operations by reducing flow rates by as much as 90% and impede the operation of irrigation structures. |
| Reference | 42122 |
| Great Lakes Region | No |
| Cost | |
| Location | |
