Category Archives: Uncategorized

Nursery Grower Workshop and Tour, Milton, Wednesday, July 20th

Posted on June 21, 2016 by Jen Llewellyn

  Milton IPPS Area Meeting & Tour — July 20 at the Landscape Ontario Office (#7856 Fifth Line South, Milton) Innovation: Making it Work

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A Couple of Diseases on Trees

Posted on June 14, 2016 by Jen Llewellyn

Some diseases and pests are easy to spot, many are not.  Apple scab is a good example of a disease that is kind of subtle, especially in the early stages of development.  Plus it has diffuse spot margins, making it … Continue reading →

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Protect Malus Against Apple Scab

Posted on May 9, 2016 by Jen Llewellyn

Fireblight (apple, pear, see above) and Apple Scab (apple) diseases are normally reproducing and spreading this time of year.  This week we are more concerned about Apple Scab.  The cool weather has really reduced the activity of fireblight bacteria and so the risk of … Continue reading →

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Guide to Weed Control in Ontario

Posted on April 8, 2016 by ONFruit

ONfloriculture Publication 75 covers herbicides for outdoor ornamentals and non-crop areas outside the greenhouse. Ontario’s latest Guide to Weed Control is now available as a free PDF from OMAFRA.  Chapter 16 covers weed control inoutdoor ornamentals, and includes effectiveness ratings for registered products.  This … Continue reading →

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REMOVE & DESTROY Cankered-Looking Deadwood

Posted on April 7, 2016 by Jen Llewellyn

                                                   While woody plants are still dormant and bark is very visible, its a great time … Continue reading →

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A Few Pests Out There

Posted on June 16, 2015 by Jen Llewellyn

The rain has stopped for now, but a chance of showers are still in the forecast for much of southern Ontario.  Even if its not raining, a few minutes of working outside and it will feel like it is :0 … Continue reading →

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Sudden Dieback on Twigs?

Posted on June 13, 2015 by Jen Llewellyn

Horticulturalists are reporting sudden leaf and twig dieback on several different species of deciduous trees across southern Ontairo.

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Leaf Galls – Friend or Foe?

Posted on June 9, 2015 by Jen Llewellyn

This time of year we get to see a lot of interesting leaf galls.  A general rule of thumb is that if they are on leaf or petiole tissue, they are likely not significantly damaging to tree health.  Above is an … Continue reading →

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Silver Maples and Red Oaks

Posted on May 28, 2015 by Jen Llewellyn

It’s a heavy seed year for silver maples (Acer saccharinum) this year.  Many of our landscape specimens are teaming with keys which are starting to helicopter to the ground.  Silver maples are wind pollinated and one of our first trees … Continue reading →

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Fast times in the Ontario Landscape

Posted on May 13, 2015 by Jen Llewellyn

This past week was way above average for temperatures for the beginning of May.  This has increased the GDD accumulations and hastened plant and insect development.  Many plants that normally bloom sequentially are blooming (and pollinating) at the same time, Aye … Continue reading →

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