The Connecticut Agricultural Experiment Station 123 Huntington Street New Haven, CT 06511 Phone Number: (203) 974-8500 Toll-Free: 1-877-855-2237 Fax: (203) 974-8502 Connecticut Invasive Plant List. Scientists at the University of Connecticut together with principals at the Connecticut Department of Energy and Environmental Protection (DEEP) have identified numerous plant species that pose a threat to habitats, human health and economy. This list of mammals of Connecticut includes both native and nonnative species (introduced or invasive) found in the U.S. state of Connecticut now or in the past, but not domesticated or farm animals.. Some of USDA's programs implemented by NRCS provide technical and financial assistance for land practices that can help control invasive plants. Like all New England states, Connecticut is suffering from an invasion of these plant and animal species into its landscape, fresh waters and marine waters. Invasive Plants in Connecticut NRCS works with partners from other agencies and organizations to share information, provide education, and achieve goals relating to invasive plant management. These cards were developed for use in training workshops for groups of people actively looking for invasive plants. • The cost to control invasive species and the damages they inflict upon property and natural resources in the U.S. is estimated at $137 billion annually. Hydrilla on the Connecticut River. Invasive plants are a threat to the Connecticut environment as well as a potential pain point on commercial construction job sites. The list below is a partial inventory of non-native species that are considered to be an existing threat or potential threat. Invasive Species in Connecticut: A Quick Look Connecticut has been invaded by a number of harmful exotic plants and animals. E.A. Connecticut invasive plant list. If one plant bends over, it can send out runners 30-50 feet long, which sprout at every node. Phragmites australis (Common Reed or Reed Grass): Phragmites spreads about 3-5% a year. Quinn Landscape Contracting has a professional team licensed by the state of Connecticut in invasive plant spraying and removal to assist commercial contractors and landowners in cleaning their properties or job sites of non-native growth. How communities are dealing with invasive species across the U.S. Connecticut Invasive Plants Council. They include the vine Japanese honeysuckle ( Lonicera japonica ), and the shrubs Amur honeysuckle ( L. maackii ), Morrow’s honeysuckle ( L. morrowii ), and Belle honeysuckle ( L. x bella ). 2010. There are at least 96 species of invasive or potentially invasive plants in Connecticut, including 22 species of aquatic plants. 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