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Author Archives: Jen Llewellyn
IPM in August
Lots of hairy caterpillars can be found feeding openly on foliage of nursery and landscape ornamentals this time of year. Above you will see Hickory tussock Moth (Lophocampa caryae, Family: Erebidae left photo) and the very common Virginian tiger … Continue reading
The Friday Report – July 26, 2019
Are you noticing webbed masses of yellow-brown, fuzzy larvae with dark heads feeding on leaves of deciduous trees and shrubs this summer?
Posted in Weekly Nursery Landscape Report
Tagged arboriculture, fall webworm, IPM, Jen Llewellyn, landscape plants, nursery crops
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Seeing Dieback on Maples?
Several Landscape Professionals are reporting significant canopy dieback in maple trees this year.
Posted in Arboriculture, Diseases, IPM, landscape
Tagged dieback on maple, it's not Verticillium, onnurserycrops
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Injectable Solutions for Landscape Trees
Emerald ash borer adults are laying eggs. Injectable insecticides are available to help keep trees healthy.
Still Lots Of Opportunities For IPM
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 […]
Posted in Insects, IPM, landscape, Nursery Production
Tagged bugfinder, dave cheung, Jen Llewellyn, onnurserycrops
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Japanese Beetles Are Here!
Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario!
Posted in Insects, IPM
Tagged european chafer, japanese beetle, Jen Llewellyn, onnurserycrops
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Japanese beetles are in flight! -What Growers Need to Know
Japanese beetle season is upon us once again!
Posted in Uncategorized
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Anthracnose and Other Blights Out There
The cool, wet spring has created perfect conditions for leaf and stem diseases on woody ornamentals this year. American Sycamore (Platanus occidentalis) and London Planetree (Platanus x acerifolia) are showing distinctive bud and shoot failure and leaf blights due to … Continue reading
Posted in Uncategorized
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IPM This Week (June 10)
Foliar diseases such as Anthracnose can be seen on deciduous trees in the landscape, especially on maple, ash and oak. The fungus infects leaf tissue as it is emerging, especially during cool, wet springs. Fungal infection causes some distortion and … Continue reading
Boxwood Leafminer Adults Are Flying
Boxwoods in the landscape not looking so good coming out of the winter? Are you seeing a lot of yellow leaves? Can you see any yellow-green-brown spots?
