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Category Archives: Weekly Nursery Landscape Report
Lots of hairy caterpillars can be found feeding openly on foliage of nursery and landscape ornamentals this time of year. Above you will see Hickory tussock Moth (Lophocampa caryae, Family: Erebidae left photo) and the very common Virginian tiger … Continue reading
Are you noticing webbed masses of yellow-brown, fuzzy larvae with dark heads feeding on leaves of deciduous trees and shrubs this summer?
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 … Continue reading
Boxwoods in the landscape not looking so good coming out of the winter? Are you seeing a lot of yellow leaves? Can you see any yellow-green-brown spots?
Seeing holes in newly emerged leaves but all you can find are dark, fuzzy little caterpillars? Gypsy moth larvae have also begun to feed. Look for holes in leaves and turn over inspect leaf … Continue reading
What a treat! Several of our sugar maples are blooming this year all over southern Ontario, from Barrie to Niagara, these native beauties are gracing our landscapes with blooms. Its been 5 years since sugar maples were blooming like this. The cooler weather continues! Climatologists are predicting that our daytime temperatures will stay moderate until about the […]
Introduced Beech scale (Cryptococcus fagisugae) is easier to see this time of year on our native American beech (Fagus grandifolia). That’s because of the white waxy coverings the females produce to protect their eggs.
Now is the time for dormant oil applications to smother overwintering pear leaf blister mites Continue reading
There was quite a lot of dieback on woody shrubs and trees this spring and summer, some of it is still just showing up. Vertical cracks in juvenile … Continue reading
This beautiful, fat four-horned Sphinx moth larva (Order: Lepidoptera; Family: Sphingidae; Species: Ceratomia amyntor) was found chewing on elm leaves by OMAFRA Field Tech Student Kaitlin Creighton and LO Nursery Scout Charlotte Thomson. Knowing their supervisor’s sense of humour, Kait … Continue reading