Category Archives: Christmas Trees

IPM This Week – July 9, 2018

Posted on July 9, 2018 by

                 Fall webworm (Hyphantria cunea) are laying their eggs on foliage (Juglans, Prunus, Betula, Fraxinus) at this time (Photo: Charlotte Thomson, LO Nursery Scout).  They have multiple generations per year and most people … Continue reading →

Posted in Arboriculture, Christmas Trees, IPM, landscape, Nursery Production, Weekly Nursery Landscape Report | Tagged , , , , , , , | Leave a comment

IPM This Week – July 11

Posted on July 11, 2017 by

Click HERE for the AUDIO version of this blog post.                         Frequent precipitation events continue to shower outdoor ornamentals with too much love.  Leaf diseases are rampant, making plants … Continue reading →

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Jumping for Joy in the Foliage (June 8)

Posted on June 8, 2016 by

What a spring for cankerworms!  A few species of cankerworms (Geometrids) can be found feeding on trees and shrubs in the landscape and nursery.  The greater Hamilton area is seeing significant populations of Fall Cankerworm, pale-green larvae that move like … Continue reading →

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Is it Needlecast Disease….or something else?

Posted on April 4, 2016 by

We’ve seen a fair amount of dieback on spruce trees in the nursery and landscape over the last few years.  It all seemed to start back in the fall of 2013, just after that wicked hot summer where some areas … Continue reading →

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EVERGREENS: Winter Desiccation or a Pest Issue?

Posted on May 5, 2015 by

I had a request for an article on diagnosing winter desiccation versus pest and disease issues on evergreens.  I find diagnosing diseases of evergreens versus physiological and abiotic disorders to be tricky.  But here is the decision-making process that I … Continue reading →

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Real or Fake?

Posted on December 3, 2014 by

Each year, Ontario households have the same annual debate: real or fake? If you talk to your clients, you’ll hear opinions for, against and everything in between. The answer? Whatever the client wants, Hello. But what does the science say?

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