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The Ragwort Control Act 2003 (c 40) is an Act of the Parliament of the United Kingdom. It creates guidance as a Code of Practice on Ragwort Control, [ 5 ] but does not force control, create a responsibility to control or make growing the plant a criminal offence.
Common names include ragwort, common ragwort, [4] stinking willie, [5] tansy ragwort, benweed, St. James-wort, stinking nanny/ninny/willy, staggerwort, dog standard, cankerwort, stammerwort. In the western United States it is generally known as tansy ragwort , or tansy , though its resemblance to the true tansy is superficial.
It has been introduced into New Zealand, Australia and North America to control ragwort, on which its larvae feed. The moth is named after the red mineral cinnabar because of the red patches on its predominantly black wings. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. Cinnabar moths are about 20 ...
Botanophila seneciella, the ragwort seed fly or ragwort seed head fly, is a fly species in the family Anthomyiidae. Larvae feed within seed heads of Jacobaea vulgaris (the tansy ragwort), often destroying all of the developing seeds. [4] It is also found feeding on Senecio vulgaris (the groundsel). These flies originated in France. [5]
Longitarsus jacobaeae is a species of flea beetle known as the tansy ragwort flea beetle. It is used as an agent of biological pest control against the nectar-rich noxious weed known as ragwort ( Senecio jacobaea reclassified as Jacobaea vulgaris ).
A ragwort plant can produce around 30,000 to 120,000 seeds but as this is a native plant in the UK these would on average only create one new plant. It can be toxic to livestock if it is contained in hay and it contains several kinds of Pyrrolizidine alkaloid which can, if the dose is high enough, cause liver damage .
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The ragwort flea beetle and ragwort seed fly have been approved and released for Senecio control in California, [19] Australia [37] and elsewhere. Fungi Most Senecio , including S. squalidus are susceptible to rust and other fungus and mildews : [ 6 ] [ 38 ] [ 39 ]
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