Category: Insect Pests

Oystershell Scale-Resistant Hedging Alternatives

Posted by shane - January 3, 2017 - A-Z Plant Maintenance, Hedges, Insect Pests

Oystershell scale continues to devastate Calgary hedges, and we treated a record number of them in 2016.  This trend is likely to continue.  It is getting to the point that keeping a cotoneaster healthy in Calgary might not be worth the money or effort for many people.  I’ve been telling my customers that I would […]

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Why is the Top of My Birch Tree Dead?

Posted by shane - December 15, 2014 - Insect Pests, Insects, Diseases & Other Problems

All over Red Deer and other Alberta towns and cities, the big mature birch trees are dying.  Why? There are a number of factors that contribute to the decline of a weeping or paper birch.  First, the majority of our soils in the Red Deer area are clay-based, alkaline grassland soils, which are not particularly well […]

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Oystershell Scale

Posted by shane - February 6, 2011 - Insect Pests, Insects, Diseases & Other Problems

Of all the pests that I work with in Calgary and Red Deer, the scale insects are doing the most damage.  And while European Elm Scale is now familiar to homeowners and tree professionals, oystershell scale is still largely unknown to people, and its potential for damage grossly underestimated by arborists, landscapers, and government bodies.  It attacks […]

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Cottony Ash Psyllid

Posted by shane - January 31, 2011 - Insect Pests, Insects, Diseases & Other Problems

For information on the biology and control of this pest, please refer to the following link to the City of Red Deer Fact Sheet: http://www.reddeer.ca/NR/rdonlyres/B8D5D6D6-6F39-4F6B-A98D-BFBB419AFB17/0/Feb2008CottonyPsyllidhandoutRPC.pdf Red Deer Experience This pest has been tough to control.  Most Black and Manchurian Ash in Red Deer in 2009 were in decline or nearly dead.  In 2010, likely due to a […]

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Birch Leafminer

Posted by shane - January 25, 2011 - Insect Pests, Insects, Diseases & Other Problems

This is a very common pest in the urban landscape in some areas.  In the summer of 2009, there was a serious epidemic in some Red Deer neighbourhoods, but populations declined greatly in 2010, most likely due to a cold, wet spring, and generally cool summer.  As of 2016, leafminer has become an increasing problem […]

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Scale Insects Invade Calgary Communities

Posted by shane - July 16, 2010 - Insect Pests, Insects, Diseases & Other Problems

Scale Insects Invade Calgary Communities

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