Now is the time for dormant oil applications to smother overwintering pear leaf blister mites Continue reading
Fall webworm (Hyphantria cunea) are laying their eggs on foliage (Juglans, Prunus, Betula, Fraxinus) at this time (Photo: Charlotte Thomson, LO Nursery Scout). They have multiple generations per year and most people … 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 […]
We’ve just entered one of the busiest times of year for IPM managers of outdoor ornamentals. Plants are lush and pests and diseases are hungry. Are you seeing discoloured, pimple-like spots on the foliage of pear trees?
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 […]
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.
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