Translations:AY Honors/Agriculture/Answer Key/25/en
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Urtica
| Urtica (Nettle) | |
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Where found: Urtica has a cosmopolitan though mainly temperate distribution. The most prominent member of the genus is the stinging nettle Urtica dioica, native to Europe, north Africa, Asia, and North America.
Description: This species have spiny hairs, or stinging trichomes, whose tips come off when touched, transforming the hair into a needle that will inject a cocktail of poisons: acetylcholine, histamine, 5-HT and possibly formic acid. This mix of poisons cause a sting or paresthesia from which the species derives its common name, as well as the colloquial name "7 minute itch".
Control: Nettles should be trimmed to the ground and then sprayed with glyphosate. If the re-emerge, they should quickly be hit with glyphosate a second time.
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