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Category Archives: Invasive Species
Invasive Species Center events: SLF and BLD workshops this summer
Two FREE invasive species workshops are coming up this summer hosted by the Invasive Species Centre. On July 24 there will be an in-person workshop in Brighton focused on beech leaf disease. On August 6, there will be a spotted … Continue reading
Posted in Arboriculture, Invasive Species, IPM
Tagged beech leaf disease, beech leaf disease ontario, beech leaf disease workshop, BLD, BLD brighton, BLD ontario, hamilton workshop, invasive pests ontario, invasive species centre, invasive species learning, invasive species ontario, nursery crops, ornamentals, SLF, SLF workshop, spotted lanternfly, spotted lanternfly workshop
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Boxwoods: Time to check & treat for the next generation of box tree moth
Adult box tree moths have been observed and captured throughout Southern Ontario over the last couple weeks and as their eggs hatch, early instar box tree moth larvae will start to feed again on boxwood shrubs. This second period of … Continue reading
ARBOTECT® 20-S Fungicide label expanded via Emergency Use Registration to help manage Beech Leaf Disease on Beech Trees in Canada
By Josh Mosiondz, Minor Use Coordinator, OMAFA The Pest Management Regulatory Agency (PMRA) recently announced the approval of an Emergency Use Registration minor use label expansion registration for ARBOTECT® 20-S Fungicide for management of Beach Leaf Disease on Beech Trees … Continue reading
Japanese Beetles Have Started To Emerge in Ontario
Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario! We had our first pheromone trap captures yesterday, Monday June 23, 2025 in Vineland.
Posted in Insects, Invasive Species, IPM, landscape
Tagged beetles, japanese beetle, JB, JB adults, JB emergence, JB infographic, white grubs
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Box Tree Moth are flying: check your traps!
Today we had our first box tree moth (adult) captures of the season in our pheromone surveillance traps. Additionally, public observations on iNaturalist of the months started rolling in over the weekend from areas of Toronto, Windsor, Simcoe, Brampton, London … Continue reading
Posted in box tree moth, Insects, Invasive Species, IPM
Tagged box tree moth, boxwood, boxwood moth, BTM, BTM IPM, BTM ontario, ipm in the landscape, pest management
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Beech Leaf Disease in Ontario: What is it, where is it, and what to look for
Across Ontario, reports of beech leaf disease (BLD) in the landscape have been steadily increasing and now some nurseries are also starting to see symptomatic trees. There’s a lot of unanswered questions about this new plant health issue. In the … Continue reading
Posted in Arboriculture, Diseases, Invasive Species, IPM, Nursery Production
Tagged banding on beech trees, beech leaf disease, beech mortality, beech tree health, beech tree issues, BLD, BLD ontario, Fagus, foliar nematode, L. crenatae, nursery and landscape plants, nursery crops, Nursery IPM
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Your Yearly Explainer of Japanese Beetle Requirements: Get Those Treatments on Before May 15!
For those of you planning on shipping ornamental products out of Ontario anytime between May 15 and June 15, this is your yearly reminder to get your curative application of Acelepryn on BEFORE May 15! Recall that no pesticides are allowed when Japanese … Continue reading
Invasive Species Survey for Nursery Growers
Calling all nursery growers: the Invasive Species Centre is conducting a needs assessment survey for the agricultural sector to gauge gaps and needs with regards to invasive species impacts & resources. Invasive species impact the nursery sector in many different … Continue reading
Keep a watchful eye, for the Spotted Lanternfly!
While there are still NO known ESTABLISHED populations in Ontario, there have been more recent interceptions and sightings of the invasive Spotted Lanternfly this fall, with a few sighted in the Windsor-Essex region.
Posted in Insects, Invasive Species, landscape
Tagged invasive insects, Invasive species, invasive species ontario, lanternfly, Report SLF, SLF, spotted lanternfly
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What mesh type is needed to exclude box tree moth adults in boxwood production?
This blog post aims to summarize the findings of a study conducted last winter on various types of mesh exclusion netting that boxwood growers in Ontario could use for safeguarding boxwood to exclude box tree moth adults in a controlled … Continue reading
Posted in box tree moth, Invasive Species, IPM, Nursery Production
Tagged box tree moth, BTM, BTM IPM, exclusion netting, safeguarding
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