Snowball tree pest

Discussion in 'Woody Plants' started by budman, May 31, 2007.

  1. budman

    budman Member

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    I have a total destruction of the leaves on my snowball tree this year..the pest looks like a small grub or catipillar,..I have been washing the leaves with green palmolive soap solution but it does not help..can anyone suggest a next step
     

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  2. Daniel Mosquin

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

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  3. budman

    budman Member

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    thank you..read thru the article but it does not recommend a brand of inceticidal sopa..any thoughts...
     
  4. smivies

    smivies Active Member

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    Insecticidal soap is 'brandless'. Any bottle labelled as such will prove just as effective.
     
  5. budman

    budman Member

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    thanks
     
  6. Karsing

    Karsing Member

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    Good day....Looks as if the larvae have done there bussiness on your vibernum. I went over to our local nursery in Chilliwack, BC and they mentioned that Malethion or Diazanon (spelling?) should work if mixed with water per directions and soaking the soil around the shrub base.
     
  7. Daniel Mosquin

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

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    Right, but the most effective control doesn't require chemicals. From the Cornell site:

     
  8. budman

    budman Member

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    Looks like I have lost the battle.. a couple of questions..

    Will the tree come back again in the spring

    What can I do in the spring to prevent this again

    Thanks Snowball Trre.jpg
     
  9. Daniel Mosquin

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

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    Yes, it is likely to come back. If you've ever seen the devastation of armyworms on the Prairies where they defoliate almost every single broadleaf tree and shrub, you'll be a bit more comforted to know that plants are resilient.

    As for what you can do - see my previous note (requiring a bit of diligence and vigilance)
     
  10. jimmyq

    jimmyq Well-Known Member 10 Years

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    and Diazinon is not available nor registered for use in most of North America since like 2004. Malathion may do the job.
     

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