Pond and Lake Management Part VII: Aquatic Invasive Species: Hydrilla
Hydrilla [Hydrilla verticillata (L.f.) Royle)], is an invasive aquatic plant species that is native to Asia. The U.S. Department of Agriculture has designated hydrilla as a noxious weed, and prohibits the importing, exporting or interstate commerce of this aquatic plant. In the southeastern U.S., hydrilla has had several negative impacts to water bodies and their use. Impacts include water quality changes, fish community alterations, canal flow reductions, clogging of water pumps, impediments to recreational uses and boat navigation, displacement of native aquatic plants, and reduced aesthetics and the associated economic impacts. Hydrilla has recently been identified in several Mid-Atlantic States, including New Jersey, however fortunately to date it has not yet had widespread and large-scale impacts in the state. In order to provide effective management of an aquatic nuisance plant an understanding of the biology, life cycle and ecology of the plant is necessary. If you are uncertain if the plant in your lake or stream is hydrilla you can bring a damp stem with leaves to your local county Rutgers Cooperative Extension office for identification http://njaes.rutgers.edu/county.