Controlling Weeds Using Biological Methods


Biological control has been successful in B.C. for some noxious weeds. One success story is the control of St. John's Wort. As well, nodding thistle and leafy spurge are being controlled in some areas through biological means. Although biological control is an important tool for combating noxious weed infestations, it can only succeed when used with integrated weed management and good land management practices. Integrated weed management includes prevention. Simple actions that can greatly reduce the spread of these weeds include:
  • Pulling and destroying noxious weeds before they produce seed.

  • Rehabilitating disturbed land, within and adjacent to infested areas, with desirable, fast-growing vegetation.

  • Minimizing disturbance on lands that may be susceptible to noxious weed encroachment.

  • Traveling only on established roads in noxious seed infested areas

  • Checking for and removing noxious weeds caught on vehicles when leaving infested areas.


To receive further information on the biological control program in British Columbia, contact:

Forest Practices
P.O. Box 9520
Victoria, BC
Stn. Prov. Gov.
V8W 9C2
3015 Ord Rd
Kamloops B.C.
V2B 8A9
Ph: (250) 376-1331
Fax: (250) 376-8731

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