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
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.
Remember all those yellow spots on boxwood leaves we had this spring? These were the feeding sites of the overwintering larvae of boxwood leafminer (Monarthropalpus buxi, M. flavus).
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
Posted in Arboriculture, Christmas Trees, IPM, landscape, Nursery Production, Weekly Nursery Landscape Report
Tagged bugfinder, ipm in the landscape, ipm in the nursery, Jen Llewellyn, melissa huntley, nursery crops, omafra, onnurserycrops
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 […]
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 […]