Resources and publications

Thompson-Nicola Invasive Plant Management Pilot Project

Crown Land Treatment Prescriptions

Invasive Species Strategic Plans

Invasive Plant Species 

Biological Control

Biocontrol Agents - Operational Field Guides
Bioagent  Attacks  Agent type  Published
Agapeta zoegana (PDF, 534 KB) Diffuse knapweed, Meadow knapweed, Spotted knapweed  Root feeding moth March 1998 
Cochylis atricapitana
(Appendix I) (PDF, 1.1 MB)


Longitarsus jacobaeae
(Appendix H) (PDF, 1 MB)


Tyria jacobaeae
(Appendix G) (PDF, 1.2 MB)
Operational Field Guide to the Establishment of Tansy Ragwort Biocontrol Agents in BC.
Contains the descriptions and details for all three bioagents as separate appendices. You may also download each appendix individually at left.

Root crown feeding moth;

Root feeding flea beetle;

Foliar feeding moth 

June 2013 
Cyphocleonus achates (PDF, 524 KB) Diffuse knapweed, Spotted knapweed  Root feeding beetle  March 1998 
Larinus minutus (PDF, 1.7 MB) Diffuse knapweed, Meadow knapweed, Spotted knapweed  Seed feeding beetle March 1999
Larinus obtusus (PDF, 3.8 MB) Diffuse knapweed, Meadow knapweed, Spotted knapweed  Seed feeding beetle  July 2002 
Larinus planus (PDF, 1.7 MB) Bull thistle, Canada thistle, Nodding thistle, Plumeless thistle  Seed feeding beetle  May 2001
Mecinus janthinus (PDF, 1.6 MB) Dalmatian toadflax, Yellow/common toadflax  Stem mining beetle  May 2000 
Mogulones crucifer (PDF, 4 MB) Hound's-tongue  Root feeding beetle  May 2004
Rhinusa antirrhini (PDF, 2.3 MB) Dalmatian toadflax, Yellow/common toadflax  Seedhead feeding beetle  May 2008 
Urophora cardui (PDF, 4.3 MB) Canada thistle  Stem gall-forming fly  December 2009

Technical Reports & Dichotomous Keys

Invasive Species

Aquatic Invasive Species

Pest Management Plans

Pesticide Use Permits

Invasive Alien Plant Program (IAPP) Resources

Invasive Alien Plant Program (IAPP) Field Forms

Invasive Alien Plant Program (IAPP) Batch Loader Resources (CSV)

Guides