Category Archives: Insects

Injectable Solutions for Landscape Trees

Posted on July 11, 2019 by Jen Llewellyn

Emerald ash borer adults are laying eggs. Injectable insecticides are available to help keep trees healthy.

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Still Lots Of Opportunities For IPM

Posted on July 10, 2019 by Jen Llewellyn

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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Japanese Beetles Are Here!

Posted on July 10, 2019 by Jen Llewellyn

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

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IPM This Week (June 10)

Posted on June 11, 2019 by Jen Llewellyn

Foliar diseases such as Anthracnose can be seen on deciduous trees in the landscape, especially on maple, ash and oak.  The fungus infects leaf tissue as it is emerging, especially during cool, wet springs.  Fungal infection causes some distortion and … Continue reading →

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Boxwood Leafminer Adults Are Flying

Posted on June 10, 2019 by Jen Llewellyn

Boxwoods in the landscape not looking so good coming out of the winter?  Are you seeing a lot of yellow leaves? Can you see any yellow-green-brown spots?

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Leps Looking Moderate-High in Some Areas

Posted on May 28, 2019 by Jen Llewellyn

            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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Insect Pests on Evergreens Right Now

Posted on May 17, 2019 by Jen Llewellyn

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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A New Tool For Managing Japanese Beetles is HERE!

Posted on April 18, 2019 by Jen Llewellyn

                 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!

Posted on April 8, 2019 by Jen Llewellyn

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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Did You Manage to Manage Beech Scale This Fall?

Posted on October 29, 2018 by Jen Llewellyn

  Introduced Beech scale (Cryptococcus fagisugae) is easier to see this time of year on our native American beech (Fagus grandifolia).  That’s because of the white waxy coverings the females produce to protect their eggs. 

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