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Category Archives: Arboriculture
Crop Protection Guide for Nursery & Landscape – 2016 version
http://www.omafra.gov.on.ca/english/crops/pub840/p840order.htm For detailed management and biology for common pests of woody plants, check out the new 2016 edition of OMAFRA publication 840. It is just being edited for pdf online. In the meantime, you can email our OMAFRA Contact Centre and request … Continue reading
Posted in Arboriculture, IPM, Nursery Production
Tagged ipm in the landscape, ipm in the nursery, Jen Llewellyn, publication 840
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Going To Be Cool For a While Still
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 … Continue reading
Cool Weather, Warm Hearts
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 … Continue reading
Spring is Spring-ging
Lots of new Plant Phenology indicators are starting to bloom this week! That puts us somewhere between 20 and 35 GDD’s Base 10C in the GTA. A little more in the southwest and a little less above Hwy 9.
Silver maples are starting to Bloom
It’s been a mild winter and we have already started racking up some Growing Degree Days in Southern Ontario. The silver maples (Acer saccharinum) are blooming down in Essex county and the flowers are starting to open in the GTA. … Continue reading
Posted in Arboriculture, Insects, IPM, Nursery Production
Tagged dormant oil, Jen Llewellyn
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Landscapers, Arborists and Retail Garden Centre owners? – This IPM Seminar is for YOU!
Would you be able to identify woody plant issues and what causes them? How about some ways to manage them through an integrated pest management program? Landscapers, Arborists and Garden Centre professionals who are interested in learning more about IPM … Continue reading
Posted in Arboriculture, IPM, landscape
Tagged ipm in the landscape, ipm of trees and shrubs, Jen Llewellyn
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Plant Phenology Indicators make Monitoring A LOT easier
Growers and landscapers use Growing Degree Day models to help predict when various developmental stages of pests will be present, based on temperature data they have collected themselves or obtained from the local weather office. These GDD pest models can … Continue reading
Fall Fertility – What a great opportunity!
Leaf drop and fall colour is visible on some trees and shrubs in the landscape. This is especially true of woody plants on roadsides, high sandy knolls or compacted sites. In some cases where individual specimens are entering senescence earlier … Continue reading
Posted in Arboriculture, landscape, Nursery Production, Plant Nutrition
Tagged fall fertilizing trees, Jen Llewellyn
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Get Ready for Fall Scale Management
Many horticultural professionals are ramping up for fall applications of horticultural oil. The full rate of horticultural oil is excellent for smothering juvenile stages of insects this time of year.
Posted in Arboriculture, Insects, Weekly Nursery Landscape Report
Tagged beech scale, Jen Llewellyn, magnolia scale
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Oak Leaves are Dropping…..
So I’ve been getting some calls about leaves turning yellow and dropping from mature oak trees in the landscape. There are quite a few things that can cause established deciduous trees to undergo premature leaf drop.
