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Category Archives: Invasive Species
August is Tree Check Month!
This annual campaign urges Canadians to thoroughly inspect trees and plants in their backyards, gardens, parks, and vehicles for invasive pests.
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
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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
Notice for commercial boxwood growers: product update for Box Tree Moth
The LAST DATE to use any inventory you might have of the insecticide DELTAGARD SC for Box Tree Moth on commercial grown boxwood is next week: June 23, 2024. This product is no longer being produced by the manufacturer and … Continue reading
Posted in box tree moth, Invasive Species
Tagged BTM, BTM IPM, deltagard, emergency use, products for Box tree moth, suspend polyzone
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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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ALTUS® insecticide label expanded via Minor Use Program to help manage Spotted Lanternfly on Outdoor Nursery and Landscape Plants in Canada
Written by Josh Mosiondz, Minor Use Coordinator,OMAFA The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for ALTUS® insecticide for suppression of Spotted Lanternfly on Outdoor Nursery and Landscape Plants in Canada.
Posted in Invasive Species, IPM
Tagged altus insecticide, managing SLF, SLF, Spotted lanternfly IPM
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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
