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Category Archives: IPM
May 10 Nursery-Landscape Report: “Those Darling Buds of May”
Well it’s the Friday of the Victoria Day long weekend and although it’s going down to 2-3C in many areas tonight and tomorrow night, I don’t see any risk of frost for areas south of Barrie. Keep in mind that … Continue reading
A rainy, warm week ahead
Environment Canada is forecasting a 40-60% chance of precipitation for much of this week, its raining in the southwest this morning. There are several diseases that will be active this week on Rosaceous plants such as apple, pear and serviceberry…..
Spring has sprung!
For those of us that have been wishing for warmer temperatures, our dreams are finally coming true. But along with the heat, we have some precipitation coming. Spruce spider mites are hatching as new growth is emerging, monitor for … Continue reading
A slow, wet start to spring
Due to the cool, overcast weather, we haven’t been receiving much heat in most parts of southern Ontario. In Guelph, the Cornus mas (Cornelian cherry dogwood) is just starting to bloom, many still in flower bud, the Acer saccharinum (silver … Continue reading
Posted in IPM
Tagged boxwood psyllid, dormant oil, ipm in the landscape, ipm in the nursery, Jen Llewellyn, tree and shrub pests
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Horticultural Oil Applications Starting (again?) Soon
Applications of horticultural oil to dormant trees and shrubs will be starting soon (daily temperatures between 4C and 12C are ideal). Timing of dormant oil applications are critical since freezing temperatures, mixing with sulphur and applying at the dormant-rate on actively … Continue reading
Posted in Insects, IPM, landscape, Weekly Nursery Landscape Report
Tagged dormant oil, horticultural oil, Jen Llewellyn
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Reminder to all Landscapers, Arborists and Retail Garden Centre owners – IPM Seminar
Landscapers, Arborists and Garden Centre professionals who are interested in learning more about IPM in woody ornamentals are reminded of the Woody IPM workshop I will be teaching on March 13 at Landscape Ontario HQ in Milton. This “IPM in … Continue reading
Posted in Arboriculture, IPM, landscape
Tagged ipm in the landscape, ipm of trees and shrubs, Jen Llewellyn
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Nursery Grower IPM Seminars start NEXT WEEK!
Calling All Wholesale Nursery Growers! I will be conducting the 12th annual IPM in the Nursery seminars at 3 sites this year:
Dormant Oil in the Autumn?
It’s been a warm month so far but the long-term forecast is calling for much cooler temperatures. That means we will soon have an opportunity to manage some of our plant pests, such as mite eggs and scale insect nymphs, … Continue reading
Posted in Insects, IPM, Mites
Tagged horticultural oil, Integrated pest management, managing scale insects
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Asian Longhorned Beetle found in Mississauga
It didn’t take Ontarians long to get used to being in an ALHB-free zone but unfortunately the Asian Long Horned Beetle (Anoplophora glabripennis) has been detected in the GTA again, this time in Mississauga. The Canadian Food Inspection Agency … Continue reading
Posted in Borers in Landscape Trees, Insects, IPM, landscape
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