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Numerous kinds of thistles are considered to be "noxious weeds." Noxious plants are illegal to grow in most states. ... " are also on this list. Maryland is the birthplace of "The Star-Spangled ...
Japanese stiltgrass (Microstegium vimineum) invasion of a forest in Greenbelt, Maryland. Numerous non-native plants have been introduced to Maryland in the United States and many of them have become invasive species. The following is a list of some non-native invasive plant species established in Maryland.
The climate and environment of the Southeastern United States allowed the kudzu to grow virtually unchecked. In 1953 the United States Department of Agriculture removed kudzu from a list of suggested cover plants and listed it as a weed in 1970. By 1997, the vine was placed on the "Federal Noxious Weed List".
A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock. Most noxious weeds have been introduced into an ecosystem by ignorance, mismanagement, or ...
In 1993, the OTA estimated that a total of $100 million is invested annually in invasive species aquatic weed control in the U.S. [19] Introduced rats cause more than $19 billion per year in damages, [20] exotic fish cause up to $5.4 billion annually, and the total costs of introduced weeds are estimated at around $27 billion annually. [21]
The genus Cuscuta is listed as a noxious weed in Arizona, Arkansas, Massachusetts, Michigan, Oregon, and South Dakota. The genus is also listed as a noxious weed in Alabama, California, Florida, Minnesota, North Carolina, South Carolina, and Vermont, but native species are exempt from the noxious designation in those states. [4]
Cogongrass, one of the 10 worst weeds in the world, was recently identified in Idaho’s Foothills. This is the first case of cogongrass in the western United States An aggressive weed infesting ...
Goatsrue is a noxious weed that has a low distribution in Washington, but is on Washington’s quarantine list due to its fatal symptoms. If any part of the weed is ingested it can be fatal, and ...