Treat the 2nd Generation BTM Larvae in Toronto NOW

Feeding damage and one larva of box tree moth
Early-Mid Instar Larva of Box Tree Moth (Cydalima perspectalis) can be found actively feeding on boxwood in some residential gardens. This is the second generation of larvae for the 2020 season and they can be found feeding for the next 4 weeks. Inspect all twigs and foliage carefully, pull branches apart to find well-camouflaged green larvae with black heads hiding on inside foliage. This is the perfect time to spray biological insecticides like Dipel, Xentari, Bioprotec. (photo: J. Llewellyn).

Check us out on Instagram @ONnurserycrops

Continue reading
Posted in Arboriculture, Insects, Invasive Species, IPM, landscape | Tagged , , , , , , | Leave a comment

Be On The Lookout for the Spotted Lanternfly NYMPHS!

spotted-lanternfly-nymphs-adults
info.nc.agr.com

Here’s a pest you may have heard about, the Spotted Lanternfly (Lycorma delicatula).  It is not a fly, but a planthopper. In the Order Hemiptera, Family Fulgoridae.  It is actually a much stronger hopper than it is a flyer.  They may remind you of frogs they way they sit and hop around. Found recently in the US,  Spotted Lanternfly is a pest we are actively looking for in Ontario. IF YOU THINK YOU HAVE FOUND THIS PEST, PLEASE REPORT IT TO CFIA BY CLICKING HERE. OR Call: 1-800-442-2342

Continue reading
Posted in Insects | Tagged , , , , , | Leave a comment

Japanese Beetles Have Started To Emerge

<a href="/clm/species/popillia_japonica"><em>Popillia japonica</em></a> (Japanese Beetle) adult on cedar.       Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario!  They have been spotted in Niagara this week. Continue reading

Posted in Insects, IPM | Tagged , , , | Leave a comment

The Monday Report – June 29th

GypsyMothLarvaHideAfternoonYellowHeadJune19_17_01               Gypsy moth larvae have donned their yellow heads and are much longer than 2.5 cm…..which means they are no longer susceptible to the biocontrol Bacillus thuringiensis (B.t./Dipel/Foray). Continue reading

Posted in Insects, IPM, landscape, Nursery Production | Tagged , , , | Leave a comment

Late Spring IPM for Landscape and Nursery

maple anthracnose

Maple anthracnose, caused by several different fungi, are quite common this year due to cooler temps and frequent rains.

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 necrosis.  Infected leaves usually remain functional.  Fear not, symptoms will soon be masked by the emergence of the second flush of leaves. Continue reading

Posted in Diseases, Insects, Nursery Production, Plant Nutrition, Weekly Nursery Landscape Report | Tagged , , , | Leave a comment

Boxwood Leafminer Adults Are Flying Where Black Locusts are in Flower Bud!

BoxLeafMinerDamageApril

Boxwoods in the landscape not looking so good?  Are you seeing a lot of yellow-brown spots on leaves? Continue reading

Posted in Insects, landscape, Uncategorized, Weekly Nursery Landscape Report | Tagged , , , , | Leave a comment

NOW IS THE TIME to Treat for Box Tree Moth Larvae in Toronto

Box tree moth larva
Mid Instar Larva of Box Tree Moth (Cydalima perspectalis) can be found actively feeding on boxwood in some residential gardens. This is the perfect time to spray biological insecticides like Dipel, Xentari. (photo: J. Llewellyn).
Continue reading
Posted in Arboriculture, Insects, Invasive Species, IPM, landscape | Tagged , , , , , , | Leave a comment

BANNER Year For Gypsy Moth Larvae!

First instar Gypsy moth (Lymantria dispar) larvae have hatched and are dispersing!

Larvae produce silken threads and take a ride in the wind in hopes of landing on other delicious botanical hosts.

Continue reading

Posted in Arboriculture, Insects, Weekly Nursery Landscape Report | Tagged , , , , , | Leave a comment

The Monday Report: May 25, 2020

We can still see the remains of low temperature injury from a couple of weeks ago.  Not to worry, the next set of leaves will cover up the desiccated leaves and stems.

Continue reading

Posted in Arboriculture, Christmas Trees, Diseases, Environment, Insects, IPM, landscape, Nursery Production, Plant Nutrition, Weather, Weekly Nursery Landscape Report | Tagged , , , | Leave a comment

Protect Evergreens Starting As New Growth Emerges

Monitor for needlecast and blight diseases on older foliage where new foliage is emerging on PINE and SPRUCE.

Continue reading

Posted in Diseases, IPM | Tagged , , | Leave a comment