Category Archives: IPM

Japanese Beetles Have Started To Emerge

                 Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario!

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The Monday Report – June 29th

One of the most filthiest scale insect pests known to horticulturalists, the Euonymus scale (Unaspis euonymi) is a tiny little armored scale that covets evergreen Euonymus fortunei in the garden or landscape.  Adult females have a dark cover that is wider at the posterior end, sea-shell in appearance with white margins. The smaller males have […]

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NOW IS THE TIME to Treat for Box Tree Moth Larvae in Toronto

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The Monday Report: May 25, 2020

We can still see the remains of low temperature injury from a couple of weeks ago.  Not to worry, the next set of leaves will cover up the desiccated leaves and stems.

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Protect Evergreens Starting As New Growth Emerges

Monitor for needlecast and blight diseases on older foliage where new foliage is emerging on PINE and SPRUCE.

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Here Comes the Warmer Weather!

  What a treat! Several of our sugar maples are blooming this year all over southern Ontario, from Barrie to Niagara, these native beauties are gracing our landscapes with blooms.  Its been 5 years since sugar maples were blooming like this. The cooler weather continues!  Climatologists are predicting that our daytime temperatures will stay moderate until about the […]

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Continue to Protect Apple, Crabapple and Pear from Fireblight and Apple Scab

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 fireblight is looking low again this week.    

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Fruit Tree Disease Management Begins at Green Tip

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 fireblight is looking low again this week.    

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Be Prepared: Horticultural Oil App’s Coming Soon!

Dormant oils should not be applied if the temperature is below 4C or if the temperature will approach freezing soon after application of the dormant oil spray.  The freezing temperatures can mess with the emulsion of the oil mixture and cause uneven application. Continue reading

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Spring is Springing…Again!

There may still be snow in the bush north of Barrie but at long last, its been mild enough to support bloom on several early flowering plants.  Sunday afternoon was heavenly…for a few hours.  It looks like some milder weather … Continue reading

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