Hydrangea scale on Cornus kousa

Discussion in 'Cornus (dogwoods)' started by Sarah G, Aug 4, 2019.

  1. Sarah G

    Sarah G New Member

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    I just discovered hydrangea scale on my 30+ year old Cornus kousa. I cut off and disposed of all branches where I could see the white scale egg cases. Also removed a few dead branches. What next? Should I treat the tree with dormant oil in the fall? Are there other treatment option?

    Any suggestions appreciated.

    Thanks!
     
    Sarah G, Aug 4, 2019
    #1
  2. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Just bumping this one up, in case someone who knows the answer missed it.
     
    Daniel Mosquin, Aug 12, 2019
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