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Category Archives: Arboriculture
Those Darling Buds of May- 2018
Lots of early Plant Phenology indicators are blooming this week! That puts us somewhere around 15-25 GDD’s Base 10C in the GTA. A little more in the southwest (London and west). Plant Phenology indicators this week … Continue reading Continue reading
April Snowstorms Bring May Flowers
There may still be snow in the bush but at long last, its been warm enough to support bloom on several early flowering plants. It looks like the warming trend will continue, according to the 7 day weather forecasts. After … 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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Now is the Time to Manage Beech Scale
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. Look for
Posted in Arboriculture, Insects, Weekly Nursery Landscape Report
Tagged beech scale, bugfinder, Jen Llewellyn, magnolia scale
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IPM This Week – July 11
Click HERE for the AUDIO version of this blog post. Frequent precipitation events continue to shower outdoor ornamentals with too much love. Leaf diseases are rampant, making plants … Continue reading
Does It Seem Like All We Do Is Work?
There are lots of pest and plant health issues out there right now so check out my last few posts from the last week or so. Recently planted trees not looking so good? The 2016 growing season was extremely hot and dry and was very hard on landscape ornamentals, especially those planted in the […]
Posted in Arboriculture, Insects, IPM, landscape, Nursery Production
Tagged bugfinder, dave cheung, Jen Llewellyn, melissa huntley, onnurserycrops
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The Friday Report, June 2
There are lots of pest and plant health issues out there right now so check out my last few posts from the last week or so. Recently planted trees not looking so good? The 2016 growing season was extremely … Continue reading
Posted in Arboriculture, Insects, IPM, landscape, Nursery Production
Tagged bugfinder, dave cheung, Jen Llewellyn, onnurserycrops
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Leps are languishing…. time for biocontrol
Seeing holes in leaves on deciduous trees? This majestic sugar maple was showing interveinal holes and closer inspection revealed fall cankerworm (Alsophila pometaria) larvae on the leaf undersides. Larvae are pale green (although you’ll … Continue reading
Welcome May 24 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 […]
April Showers, Bring May Diseases
This cooler weather has been a nice break, slowing down plant development and reducing heat and desiccation stress on newly planted or harvested nursery stock. We inched up a little in Growing Degree Days and Plant Phenology this week.
Warmer Temperatures Coming This Week
Lots of Plant Phenology indicators are blooming this week! That puts us somewhere around 35 and 55 GDD’s Base 10C in the GTA. A little more in the southwest and a little less above Hwy 9. Plant Phenology indicators this … Continue reading Continue reading
