Thompson Nicola Invasive Plant Management Committee

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Biological Control Program

The TNRD provides biological control agents to private landowners within the TNRD free of charge. 

Biological control is suitable for invasive plant infestations where other management strategies are neither cost-effective nor environmentally desirable. A good example of such an area are large knapweed infestations in open grasslands or adjacent to water bodies where herbicide application is not allowed. Biological control agent weaken the target plant's seed production and overall plan integrity by feeding on the seed heads, and other parts of the plant, such as their root systems.  Biological control will not typically get rid of your weeds all together, and its results are usually seen over numerous years. It is a long-term control strategy. 

Agents are available in the TNRD for the following  invasive plant species. 

HOW TO APPLY

Contact the TNRD at invasiveplants@tnrd.ca or 1-877-377-8673 to request biological control insects OR fill out the online form below. If you are having issues submitting the online form, please fill out the paper form below and email to invasiveplants@tnrd.ca. Insects will be made available upon available resources, on a first come first serve basis and will be delivered based on the timing of the insects emergence throughout the summer months. 

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