Tag Archives: dave cheung

Happy Summer Solstice (Yesterday) Eh?

One of the most filthiest scale insect pests known to horticulturalists, the Euonymus scale (Unaspis euonymi) is a tiny little armored scale that covets evergreen Euonymus fortunei in the garden or landscape.  Adult females have a dark cover that is wider at the posterior end, sea-shell in appearance with white margins. The smaller males have […]

Continue reading

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

Boxwood Leafminer Adults Starting to Fly

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?

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

It’s June 1st Already!

 We’ve just entered one of the busiest times of year for IPM managers of outdoor ornamentals. Plants are lush and pests and diseases are hungry. Are you seeing discoloured, pimple-like spots on the foliage of pear trees?

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

Leps are languishing…. time for biocontrol

                Seeing holes in leaves on deciduous trees?  This sugar maple was showing interveinal holes and closer inspection revealed fall cankerworm (Alsophila pometaria) larvae on the leaf undersides.  Larvae are pale green (although you’ll often … Continue reading

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

Fall Cankerworm & Gypsy Moth Populations Looking Moderate-High in Some Areas

                Seeing holes in leaves on deciduous trees?  This sugar maple was showing interveinal holes and closer inspection revealed fall cankerworm (Alsophila pometaria) larvae on the leaf undersides.  Larvae are pale green (although you’ll often … Continue reading

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

Welcoming The Victoria Day Long Weekend!

  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 […]

Continue reading

Posted in Arboriculture, Diseases, IPM, Nursery Production, Weekly Nursery Landscape Report | Tagged , , , , | Leave a comment

Those Darling Buds of May- 2018

Continue reading

Posted in Arboriculture, Diseases, IPM, Nursery Production, Weekly Nursery Landscape Report | Tagged , , , , | Leave a comment