Photo of the Week
We are seeing moderate-high levels of Gypsy moth egg masses in southern Ontario this fall! Scrape off the brown, fuzzy masses and you will see the 100+ eggs inside. Remove, Collect, Dispose as much as possible to reduce larvae in 2021.
Category Archives: IPM
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.
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.
Posted in Diseases, IPM
Tagged diplodia tip blight, Jen Llewellyn, rhizosphaera on spuce
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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 […]
Posted in Arboriculture, Borers in Landscape Trees, Christmas Trees, Diseases, IPM, landscape, Nursery Production, Weather, Weekly Nursery Landscape Report
Tagged bugfinder, ipm in the landscape, ipm in the nursery, Jen Llewellyn, onnurserycrops, pest management, plant health, plant phenology, treehealth
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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.
Posted in Diseases, IPM, landscape, Nursery Production
Tagged apple scab, fireblight, Jen Llewellyn, mike celetti
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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.
Posted in Diseases, IPM, landscape, Nursery Production
Tagged apple scab, fireblight, Jen Llewellyn, mike celetti
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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
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
Posted in Arboriculture, IPM, landscape
Tagged bagworm, bugfinder, city of toronto, eastern tent caterpillar, fall cankerworm, gypsy moth, Jen Llewellyn
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IPM in August
Lots of hairy caterpillars can be found feeding openly on foliage of nursery and landscape ornamentals this time of year. Above you will see Hickory tussock Moth (Lophocampa caryae, Family: Erebidae left photo) and the very common Virginian tiger … Continue reading
Seeing Dieback on Maples?
Several Landscape Professionals are reporting significant canopy dieback in maple trees this year.
Posted in Arboriculture, Diseases, IPM, landscape
Tagged dieback on maple, it's not Verticillium, onnurserycrops
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