The border collie is one of a precious few canny canines whose elite sense of smell can pinpoint a single specimen of the smothering, scrambling Chinese violet across a large area with minimal impact on the environment.

Key points:

  • Sniffer dogs have been trained to detect the invasive weed Chinese violet
  • The weed is commonly found in the Hunter region and can smother native plants
  • Henry and his counterpart Daisy can detect the species in any location