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Altica carduorum

Biological agent type
rood miner and defoliating beetle
 
Plant species attacked
Canada thistle (Cirsium arvense)
 
NO IMAGES CURRENTLY AVAILABLE

Impact on target plant

Adults cause minor defoliation, larvae mine roots

Collection and release

Not available

Distribution

Not established in Oregon or US
History and comments The flea beetle Altica carduorum was introduced in 1966 by USDA-ARS in Oregon and neighboring states and failed to establish. Additional research on the insect has shown that it is not host specific enough for reintroduction.

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