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Category Archives: Insects
Managing red-headed flea beetles in pots with nematodes: a new video tutorial
Red-headed flea beetle got you down last year? If you have potted plants that are celebrating a birthday in your nursery, simply spraying for adults in July often isn’t enough to limit their damage. A brand new video has just … Continue reading
Nursery Pest Update: May 22, 2026
Welcome to the first nursery pest update for 2026! Most regions of Southern Ontario are between the 50-100 GDD (base 10°C) range with full bloom of Syringa vulgaris. In more southern regions such as Harrow and the Niagara peninsula, GDD … Continue reading
Posted in Insects, IPM, Weekly Nursery Landscape Report
Tagged box tree moth, boxwood pests, insects, ipm in the nursery, nature, nursery insect pests, Nursery IPM, nursery IPM report, nursery scouting, ontario nursery crops, Ornamental IPM, plants, publication 840, spongy moth, spruce spider mite
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Box tree moth: spring feeding has resumed
Despite what feels like a slow start to spring, box tree moth (BTM) have now exited their winter hibernariums and can now be found actively feeding. So for those who continue to grow and manage boxwood: time to scout and … Continue reading
Hemlock Woolly Adelgid: have you scouted for this pest yet?
Cassie Russell, Nursery and Landscape Specialist, OMAFA Hemlock woolly adelgid, Adelges tsugae, is a regulated invasive insect that poses a serious threat to eastern hemlock (Tsuga canadensis) in Ontario. This pest is now established in parts of southern Ontario and … Continue reading
Posted in Insects, Invasive Species, IPM, landscape, Nursery Production
Tagged hemlock woolly adelgid, hemlock woolly adelgid ontario, hwa, HWA management ontario, HWA ontario, HWA scouting, invasive insects ontario, invasive species ontario, Nursery IPM, nursery scouting, ontario nursery crops
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In case you missed it: recording available for Hemlock Woolly Adelgid webinar
Missed out on the recent webinar ‘Best Practices for Managing Hemlock Woolly Adelgid ‘ in Nurseries? You’re in luck! A recording is now available. Continue reading to access a link to the recording.
Integrated Pest Management Webinars for Nursery Growers
This January, OMAFA is presenting a series of webinars focused on integrated pest management (IPM) topics for nursery growers. See below for the list of webinars and links to register through zoom. Registration is free, but you must register for … Continue reading
In Case You Missed It: Two-Spot Cotton Leafhopper – a New Pest of Hibiscus
You may have heard about this new leafhopper in recent e-newsletters, or maybe you tuned into the recent HRI webinar, but should Ontario growers be worried? Well, if you grow hibiscus or import plants from the southern US, it might … Continue reading
Posted in Insects, IPM
Tagged hibiscus pests, leafhoppers, new pest of hibiscus, Nursery IPM, two spotted cotton leafhopper
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Upcoming Webinar: Best practices for Hemlock Woolly Adelgid in the Nursery
In light of the expansion of the regulated area for Hemlock Woolly Adelgid this fall in Ontario (click here for announcement), CNLA and OMAFA are hosting a webinar on December 10th for nursery growers to understand the biology of this … Continue reading
Posted in Insects, Invasive Species, IPM
Tagged hemlock ontario, hemlock woolly adelgid, hwa, HWA management, HWA ontario
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Box Tree Moth management: your final window to target larvae before they overwinter
Many regions have seen a small uptick in box tree moth adult catches over the last two weeks, while other trap catches have remained steady since the start of the second adult flight period in mid-August. These constant catches indicate … Continue reading
Be on the lookout: Spotted Lanternfly are on the move
While the Spotted Lanternfly (SLF) is still NOT established in Canada yet, there have been numerous interceptions and unverified sightings over last couple years, with many being in the months of August and September. At this time of year in … Continue reading
