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Senecio madagascariensis, also known as Madagascar ragwort, [3] is a species of the genus Senecio and family Asteraceae that is native to Southern Africa. Other common names include Madagascar groundsel and fireweed. [3] It has been included on the noxious weeds list for Hawaii [4] and the reject list for Australia. [5]
Packera aurea (formerly Senecio aureus), commonly known as golden ragwort or simply ragwort, is a perennial flower in the family Asteraceae.. It is also known as golden groundsel, squaw weed, life root, golden Senecio, uncum, uncum root, waw weed, false valerian, cough weed, female regulator, cocash weed, ragweed, staggerwort, and St. James wort.
The Herbicide Resistance Action Committee (HRAC) classifies herbicides by their mode of action (MoA) to provide a uniform way for farmers and growers to identify the agents they use and better manage pesticide resistance around the world. [1] [2] It is run by CropLife International [3] in conjunction with the Weed Science Society of America ...
The beetle is most effective when used in conjunction with the cinnabar moth (Tyria jacobaeae), another ragwort biocontrol agent. The beetle is not known to attack other plants. A close relative, Longitarsus ganglbaueri, which also feeds on ragwort, does attack other plant species; it is not used as a biocontrol agent for this reason.
The plant is a widespread neophyte in Europe and an invasive species in Central Europe. [10] It was introduced through wool imports from Southern Africa. In Europe the ports of entry were Bremen, Calais, Mazamet, and Verviers. [11] S. inaequidens commonly exists in ruderal habitats such as railroads, roads and motorways, vacant or disused land.
Packera is a genus of about 75 species of plants in the daisy family, Asteraceae. [1] Most species are commonly called ragworts or grounsels. Its members were previously included in the genus Senecio (where they were called aureoid senecios by Asa Gray), but were moved to a different genus based on chromosome numbers, a variety of morphological characters, and molecular phylogenetic evidence.
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