Photo of the Week
We are seeing moderate-high levels of Gypsy moth egg masses in southern Ontario this fall! Scrape off the brown, fuzzy masses and you will see the 100+ eggs inside. Remove, Collect, Dispose as much as possible to reduce larvae in 2021.
Tag Archives: dormant oil
Temporary Mild Weather Spell Supports Fall Dormant Oil App’s
Now that trees have dropped their leaves and the weather has turned mild for a bit, hort professionals have a short bonus shot at managing overwintering plant pests! The full, dormant rate of horticultural oil is excellent for smothering juvenile … Continue reading
Be Prepared: Horticultural Oil App’s Coming Soon!
Dormant oils should not be applied if the temperature is below 4C or if the temperature will approach freezing soon after application of the dormant oil spray. The freezing temperatures can mess with the emulsion of the oil mixture and cause uneven application. Continue reading
Keep an Eye on the Weather: Horticultural Oil App’s Are Coming Soon!
Dormant oils should not be applied if the temperature is below 4C or if the temperature will approach freezing soon after application of the dormant oil spray. The freezing temperatures can mess with the emulsion of the oil mixture and cause uneven application. Continue reading
Dormant Oil For IPM
We’ve got milder temperatures starting today and yes, it’s still a good time to get some late dormant oil applications on in many areas of southern Ontario (Photo: overwintering nymphs of magnolia scale). As long as there is no sensitive vegetative or flower tissue emerging, you can still make dormant rate, horticultural oil applications for […]
Posted in Insects, IPM, landscape
Tagged dormant oil, horticultural oil, Jen Llewellyn
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Dormant Oil For IPM
We’ve got milder temperatures starting today and yes, it’s still a good time to get some late dormant oil applications on in many areas of southern Ontario (Photo: overwintering nymphs of magnolia scale). As long as there is no sensitive vegetative or flower tissue emerging, you can still make dormant rate, horticultural oil applications for […]
Get Ready for Fall Dormant Oil Applications
Today marks the first day of Autumn. And with it another interesting calendar event, the Autumn Equinox. Like the Spring Equinox (March 21), the Autumn Equinox marks a unique period of time where the length of daylight and night time … Continue reading
Posted in Arboriculture, IPM, Uncategorized
Tagged black-legged meadow katydid, dormant oil, Jen Llewellyn, steve paiero
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Dormant Oil, Still A Great IPM Tool
We’ve got milder temperatures starting today and yes, it’s still a good time to get some late dormant oil applications on in many areas of southern Ontario (Photo: overwintering nymphs of magnolia scale). As long as there is no sensitive … Continue reading
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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What’s up with that duck?
Each March the Canada geese herald in the beginning of spring with the honking broadcasts and displays of male prowess on lakes and storm water collection ponds. The real sign of spring (for me) is when they start standing on … Continue reading
Posted in Insects, Weather
Tagged dormant oil, Jen Llewellyn, nursery tracker, omafra publication 840, omafra publication 841
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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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