HWA + Citizen Science

Thursday, March 29, 2018

If you see snowy, cotton-like growths, call 902-536-1022  / photo : Matt Smith

What's the big deal about Hemlock Woolly Adelgid (HWA)?
  • it doesn't have any predators so once established there's no natural controls
  • it spreads very easily -- by wind, birds, by humans transporting wood
  • it has a track record of wiping out entire Hemlock forests

What does it mean for Nova Scotia?
  • the short answer is we don't know how it will progress
  • first discovered in South Western Nova Scotia summer 2017
  • Hemlocks are well established across the province
  • trying to determine the extent of infestation

Why should I care about Hemlock?
  • it has some commercial value
  • it is our oldest living tree and very important in the forest
  • if you fish ... it shades streams and rivers to keep the water cooler and healthier for fish
  • if you hunt ... hemlock groves are important habitat for wintering deer
  • if you are a naturalist ... important nesting habitat for birds
What can I do?
  • If you see a snowy, cotton-like growth on Hemlocks anywhere in the province, try and get a picture and call 902.536.1022

More information

  • Canadian Food Inspection Agency (CFIA) are leading the efforts with HWA.  Ron Neville gave an update on HWA at the March 2018 Western Woodlands Conference at you can read it [here
  • You can see current reports on HWA in the Maritimes [here]

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