insects diseases other problems

By: Wild Rose Garden & Tree Service  09-12-2011
Keywords: Red Deer, Spruce Tree

A-Z Plant Maintenance, Diseases, Environmental Disorders, Fruiting Shrubs, Insect Pests, Insects, Diseases & Other Problems, Pruning Techniques, Shrubs, Trees, Uncategorized, Weeds

Posted by arborshane - July 3, 2011 - , , , ,

No kidding!  You know, this is one of the top 5 comments I hear all year, from various would-be clients.  It seems that most people have at least one big spruce tree in their yard, and more often than not, people try to do the impossible.  They attempt to grow beautiful Kentucky bluegrass under the [..]

I have been spraying cotoneaster hedges for the past week for oystershell scale. Here are my findings: 1) Oystershell scale has infested Calgary from the core to the suburbs. Every hedge I have encountered so far has been infested to some degree. 2) I see the highest populations of insects on hedges that have never [..]

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 largely unknown to people, and its potential for damage grossly underestimated by arborists and landscapers.  It attacks 120 species of [..]

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. Birch leafminers are sawflies, jet-black, wasp-like insects that are about [..]

Fire blight is very common on the Prairies.  Some years are worse than others.  In Calgary and Red Deer, in 2009, it was particularly severe.  Epidemics occur during warm, humid weather, with relative humidity above 60%.  The bacteria responsible for the disease can multiply at temperatures between 15-32C, but do so most readily between 27-29C.  Outbreaks can follow severe storms, [..]

 Black knot is one of the most commonly encountered diseases among ornamental plantings.  I see it most often on mayday and ‘Schubert’ chokecherry trees.  Besides poor planting techniques and poor plant quality, black knot is the most common cause of plant death among those species. Easily recognizable, black knot starts as swellings on the twigs in [..]

Scale Insects Invade Calgary Communities

Keywords: Red Deer, Spruce Tree

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09-12-2011

pruning techniques

Removing dead branches of that diameter is useful when a perfectly clean appearance is necessary, or when the incidence of disease in a particular species warrants such sanitary practices. Over the years, however, many hedges become overgrown, too big to manage, or infested with insect or disease problems. I generally reserve this technique for larger trees, those that I will be climbing with a rope and harness.


09-12-2011

uncategorized

Starting in late summer, many homeowners begin to see the interior needles of their pines, spruces, and cedars turning yellow or orange. It seems that most people have at least one big spruce tree in their yard, and more often than not, people try to do the impossible. February – From mid-month onward, start pruning fruit trees such as apples and pears. I have been spraying cotoneaster hedges for the past week for oystershell scale.


09-12-2011

insect pests

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. I have been spraying cotoneaster hedges for the past week for oystershell scale. 1) Oystershell scale has infested Calgary from the core to the suburbs. I see the highest populations of insects on hedges that have never.


09-12-2011

trees

Aspen Trembling Aspen – Populus tremuloides Swedish Columnar Aspen – Populus tremula ‘Erecta’ Tower Poplar – Populus x canescens ‘Tower’ Trembling Aspen Healthy aspens are some of my favourite trees. Amur Cherry – Prunus mackii ‘Schubert’ Chokecherry – Prunus virginiana ‘Schubert’ The chokecherries are planted for their beautiful spring flowers and in the case of ‘Schubert’.


09-12-2011

a z plant maintenance

Common Caragana – Caragana arborescens ‘Sutherland’ Caragana – Caragana arborescens ‘Sutherland’ Fernleaf Caragana – Caragana lobergii ‘Walker’ Weeping Caragana – Caragana arborescens ‘Walker’ Pygmy Caragana – Caragana pygmaea The various caragana species are quite different with respect to their maintenance requirements.