dealing with insect pests on Delphinium

Discussion in 'Outdoor Gardening in the Pacific Northwest' started by Jayjones, May 17, 2017.

  1. Jayjones

    Jayjones Member

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    Do you use anything on your delphiniums to discourage insect pests? Back in the day in Calgary, we got little black caterpillars that would eat the centre of the bud out. I used pyrethrin powder at that time, but now I've learned it's harmful to bees. I'm in Courtenay, and this is my first time planting them out here.
     
    Last edited by a moderator: May 24, 2017
  2. Daniel Mosquin

    Daniel Mosquin Renowned Contributor UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    *bump on behalf of user--moved to its own thread**
     

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