Thistle Gall Fly
- Urophora cardui
UK Status: Widespread in the south of England.http://www.naturespot.co.uk/species/thistle-g...
Gange AC, Nice HE (1997) Performance of the thistle gall fly, Urophora cardui
, in relation to host plant nitrogen and mycorrhizal colonization. New Phytol. 137: 335-343.http://www.jstor.org/pss/2559111Urophora cardui
, or the Canada thistle gall fly
, is a biological control agent that attacks Canada thistle by forming a gall structure which acts as a metabolic sink preventing the plant’s nutrients from being allocated to other areas and thereby reducing plant vigor and competitive ability.http://www.agri.state.id.us/Categories/Plants...Urophora cardui
or the Canada thistle gall fly
is a fruit fly which, contrary to its common name, is indigenous to Central Europe from the United Kingdom east to near the Crimea, and from Sweden south to the Mediterranean.
The Canada thistle gall fly has been introduced to North America from Europe to control the population of its host plant, Canada, or creeping thistle, which is an invasive, introduced weed in North America.http://en.wikipedia.org/wiki/Urophora_cardui
) ist eine Fliege aus der Familie der Bohrfliegen (Tephritidae).http://de.wikipedia.org/wiki/DistelbohrfliegeDistelbohrfliege
wissenschaftlicher Name: Urophora carduihttp://www.insektenbox.de/zweifl/distbo.htm
Gallen der Distelbohrfliege