Category Archives: Plant Nutrition

Late Spring IPM for Landscape and Nursery

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

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The Monday Report: May 25, 2020

We can still see the remains of low temperature injury from a couple of weeks ago.  Not to worry, the next set of leaves will cover up the desiccated leaves and stems.

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IPM This Week (June 10)

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

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Are You Seeing Nutritional Deficiency Symptoms on Woody Plants?

                    Do you ever see chlorotic or stunted leaves and wonder if it could be a particular nutrient deficiency?  Soil nutrient testing can be a good tool to assess levels of … Continue reading

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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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Hold Off on Fall Fertilizer Where Soil is Dry

 Warm, sunny days and cold nights give rise to the most spectacular fall colours. Unfortunately, that long stretch of unseasonable warm, cloudy days and warm nights in September certainly stalled out leaf colour development this year.

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Now Is The Time To Test Leaves for Nutritional Content

                          Ever see chlorotic or stunted leaves and wonder if it could be a particular nutrient deficiency?  Soil nutrient testing can be a good tool to assess levels … Continue reading

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Rough Winds Do Shake the Darling Buds of May

Click HERE for the AUDIO version of this blog post.                                              We are seeing wind tattering damage on tender … Continue reading

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Nursery Growers Demonstrating Ways To Conserve Nutrient Inputs

A recent study of fertilizer placement techniques in Ontario nursery grown nursery stock has shown that sub-surface applications of fertilizer can not only reduce the required amount of fertilizer inputs, but also help conserve nutrients in the crop. 

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Fall Fertility – What a great opportunity!

Leaf drop and fall colour is visible on some trees and shrubs in the landscape. This is especially true of woody plants on roadsides, high sandy knolls or compacted sites. In some cases where individual specimens are entering senescence earlier … Continue reading

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