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Category Archives: Insects
August 2, 2024 – Pest Updates
It’s August already!? Anyone else wondering where July went? It’s continued to be a hot and humid summer, that’s for sure. Some plants have definitely been feeling the stress of the heat, but one things for sure: the insects are … Continue reading
Elm Zigzag Sawfly: a new(ish) pest for Southern Ontario
Elm zigzag sawfly (Aproceros leucopoda) is an invasive forestry pest from Asia that can cause defoliation of elm trees (Ulmus spp). The first report of Elm zigzag sawfly (EZS) in North America was in July of 2020, by an iNaturalist … Continue reading
Posted in Insects, Invasive Species, IPM
Tagged elm zigzag sawfly, EZS, Invasive species, ipm in the nursery, ontario invasive species, pests of elm, sawflies
2 Comments
Box Tree Moth: Time to scout and treat the second generation
Adult box tree moths have been observed throughout Southern Ontario over the last couple weeks and as their eggs hatch, early instar box tree moth larvae start to feed again on boxwood shrubs. This second period of feeding activity is … Continue reading
Posted in Arboriculture, box tree moth, Insects, Invasive Species, IPM, landscape
Tagged box tree moth, boxwood, BTM, btm larvae, buxus, IPM, ipm in the landscape, second generation, treat btm
1 Comment
June 19, 2024: Japanese Beetles Have Started to Emerge!
Japanese Beetle (Popillia japonica) adults were caught in traps today in Guelph and spotted in the last day or two near London, ON. Read on for what the start of the adult emergence period means in terms of pest management … Continue reading
Posted in Insects, Invasive Species, IPM, landscape
Tagged beetles, japanese beetle, JB, JB adults, JB emergence, JB infographic, white grubs
2 Comments
Box Tree Moth are flying – check your traps!
Box tree moth (BTM) development got off to an early start this spring and we’re already starting to see flight of the first generation. Using public observations from the website iNaturalist, we can see some of this springs first observations … 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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Box tree moth update: Pupae already?!
Scouting this spring has revealed a lot of variation in larval development and I think we might be in for a challenging summer for management. Late instar box tree moth larvae have been observed preparing for pupation in the more … Continue reading
May 21, 2024 – Nursery Pest Report
Dare I say we’ve had a lovely spring; the air is wafting with lovely smells of blooming flowers, tree canopies are filling in fast, and gardens and landscapes are full of insect activity. Most regions in Southern Ontario have already … Continue reading
Box tree moth are waking up!
We had some unseasonably warm days this March and April here in Ontario which resulted in a few instances where box tree moth (BTM) were coming out of their hibernaria during the day to feed, but quickly retreat back when … Continue reading
Posted in box tree moth, Insects, Invasive Species, IPM
Tagged box tree moth, box tree moth IPM, BTM, btm larvae, ipm in the landscape, treat btm
2 Comments
In case you missed it: “How-to” Video for Releasing Biocontrol Agents Successfully
The Vineland Research and Innovation Centre, in collaboration with the Ontario Ministry of Food and Rural Affairs (OMAFRA), has produced a number of videos demonstrating important greenhouse IPM practices that will be posted throughout the season on the ONfloriculture blog. “How-to” Video of … Continue reading
Posted in Insects, IPM
Tagged best management practices, biocontrol agents, biological control, bios, IPM, success with biologicals
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Reminder: No pruning oaks from now until November
Calling anyone who deals with oak trees including nurseries, garden centers, homeowners and tree professionals! Let this be your friendly reminder: now that April is upon us, you should hold off on pruning your oaks until November to protect trees … Continue reading
Posted in Arboriculture, Diseases, Insects, IPM, landscape
Tagged CFIA, isa ontario, oak pruning, oak wilt, oak wilt ontario, quercus, regulated pest
3 Comments
