Photo of the Week
- animal injury
- Application Technology
- Borers in Landscape Trees
- Brown Marmorated Stink Bug
- Christmas Trees
- Educational Opportunities
- Invasive Species
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- Nursery Production
- Plant Nutrition
- Weekly Nursery Landscape Report
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Author Archives: Jen Llewellyn
In 2016, approximately 4,688 hectares of ash trees were found to be in decline or mortality due to Emerald Ash Borer (Agrilus planipennis, EAB) in the province of Ontario. That’s down from just over 41,000 ha in 2015. This data … Continue reading
2016 is the year we remember as being unusually dry across much of Niagara Region. The dry conditions highlighted the need for access to irrigation water and … Continue reading
Many horticultural professionals are gearing up for fall applications of horticultural oil. But the warm weather is causing trees to retain foliage later than they usually would, delaying dormant applications of horticultural oil. The full, dormant rate of horticultural oil … Continue reading
Bright, orange-red lesions of Pear Trellis rust (Gymnosporangium sabinae) are still quite visible on ornamental pear trees right now. Take a look at the undersides of those rust lesions to find sporulating structures, called “aecia” (pronounced “ay-see-a”). These stringy, trellis-like … Continue reading
Warm, sunny days and cold nights give rise to the most spectacular fall colours. Unfortunately, that long stretch of unseasonable warm, cloudy days and warm nights in September certainly stalled out leaf colour development this year.
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
Magnolia Scale has had another great year in the Ontario landscape. This means tons of honeydew, ants, wasps and other nuisance insects that plague our beloved magnolia trees.