Cassida rubiginosa (weed bioagent)

Cassida • Chrysomelidae • Coleoptera (against weeds) • insects • weed bioagents • Beneficials/natural enemies

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Cassida rubiginosa (click on image to enlarge it)
Source: Wikimedia Commons

Cassida rubiginosa (weed bioagent) O. F. Müller - (thistle tortoise beetle)

The beetle is an important defoliator of Canada thistle (Cirsium arvense) and was accidentally introduced into North America. It also attacks related weeds and is commercially available.

Vernacular names
• Deutsch:	Distel-Schildkäfer
• English:	thistle tortoise beetle

• Other images of Cassida rubiginosa (weed bioagent) (IPM Images - click to enlarge)
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  larva on Cirsium arvense

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  larva on Cirsium arvense

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  pupa

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  damage on Cirsium arvense