Author Archives: Jen Llewellyn

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About Jen Llewellyn

OMAFRA Nursery and Landscape Specialist @onnurserycrops

Upcoming 2019 IPM Workshops!

Looking for a fun, educational workshop to brush up on your woody landscape plant health knowledge and skills?  Looking to network with other professionals? Have I got the workshop for you! OMAFRA-ISAO Course: “IPM and Site Condition Assessment For Woody … Continue reading →

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Field Entomology Course for Arborists, Landscapers and Nursery Growers coming in August!

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Leps Looking Moderate-High in Some Areas

            Seeing holes in newly emerged leaves but all you can find are dark, fuzzy little caterpillars?  Gypsy moth larvae have also begun to feed.  Look for holes in leaves and turn over inspect  leaf … Continue reading →

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Welcoming The Victoria Day Long Weekend!

  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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Insect Pests on Evergreens Right Now

Look for small, white, woolly tufts or masses on the twigs of hemlock (Tsuga canadensis) (Photos: Julie Holmes, CFIA). It is still a good time to scout for Hemlock Woolly Adelgid (Adelges tsugae) because of the visibility of the white … Continue reading →

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Protect Susceptible 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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Protect Fruit Trees From Disease Starting @ Green Tip and Early Bloom

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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April Showers Bring May Flowers

There may still be snow in the bush in Cottage country but at long last, its been warm enough to support bloom on several early flowering plants.  It looks like some milder weather is coming this week!  Night time low’s … Continue reading →

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A New Tool For Managing Japanese Beetles is HERE!

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

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Keep an Eye on the Weather: Horticultural Oil App’s Are 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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