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Canada Thistle Biocontrol|WY Cooperative Agricultural Pest Survey

Maps were made from data provided to the Wyoming CAPS Office by Wyoming Weed and Pest supervisors, USDA-APHIS-PPQ, and the University of Wyoming.

Canada Thistle Biocontrol Agents:

Cassida rubiginosa                                                                                                          Corythucha distincta

Cassida rubiginosaCorythucha distincta










Hadroplantus litura                                                                                                        Larinus planus

Hadroplantus lituraLarinus planus










Puccinia canaliculata                                                                                                          Puccinia punctiformis

Puccinia canaliculataPuccinia punctiformis










Rhinocyllus conicus                                                                                                          Trichosirocalus horridus

Rhinocyllus conicusTrichosirocalus horridus










Urophora cardui                                                                                                       

Urophora cardui

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