Author Archives: Jen Llewellyn

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? Advertisements

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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?

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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

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Upcoming IPM Workshops for Landscape, Arboriculture and Garden Centre Professionals!

Looking for a fun, educational workshop to brush up on your plant health knowledge and skills?  Looking to network with other professionals? Have I got the workshop for you! OMAFRA-ISA Course: “IPM for Woody Plants” Click below for registration page:

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Protect Evergreens Now, New Growth is Starting To Emerge!

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

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Aphids Among Us

  Populations of Aphids are starting to really take off this spring on greenhouse and outdoor ornamentals.  They are loving the softer tissue from this cool spring.  Usually aphids are not life threatening to woody plants, but they can stunt growth and … Continue reading

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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

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