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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 ...
Oryza rufipogon is an invasive species and listed as a 'noxious weed' by the United States, [19] ... This page was last edited on 17 December 2024, at 07:01 (UTC).
The Australian Weeds Committee maintain a noxious weeds list covering all the states and territories. [1] Acacia farnesiana (sweet acacia) [2] Ageratina riparia (mistflower) [3] Ailanthus altissima (tree of heaven) [4] Alternanthera philoxeroides (alligator weed) [4] Andropogon virginicus (broomsedge) [5] Annona glabra (alligator apple) [4]
March 18, 2024 at 12:32 PM. ... In November of 2021, Pennsylvania added the Bradford pear to its "Noxious Weed," list, which makes it illegal to propagate or sell the tree in the state.
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 Federal Noxious Weed Act of 1974 ("FNWA", Pub. L. 93–629, 88 Stat. 2148, enacted January 3, 1975) established a federal program to control the spread of noxious weeds. The United States Secretary of Agriculture was given the authority to declare plants "noxious weeds", and limit the interstate spread of such plants without a permit.
By 1997, the vine was placed on the "Federal Noxious Weed List". [5] [7] Kudzu was removed from the list of Federal Noxious Weeds in 2000 with the repeal of sections 2801 through 2813 of the Federal Noxious Weed Act of 1974, which were superseded by updated legislation; however it is still listed as a noxious weed in various states.
An aggressive and hardy invasive species, T. terrestris is widely known as a noxious weed because of its small woody fruit – the bur – having long sharp and strong spines which easily penetrate surfaces, such as bare feet or thin shoes of crop workers and other pedestrians, the rubber of bicycle tires, and the mouths and skin of grazing ...