Photo of the Week
Be on the lookout for the second generation of Euonymus scale crawlers! The second generation emerges about 6 weeks after the first, putting them in mid-late July this year.
Category Archives: Plant Nutrition
Hot, Humid Days are Here
Gymnosporangium rusts, like this Cedar-Apple Rust gall, are finally sporulating! These rusts overwinter on perennial gall on the evergreen Juniperus hosts. In the spring, they are stimulated to sporulate during warm, wet periods. We’ve had the heat, but its been … Continue reading
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
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.
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
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
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?
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.
Posted in landscape, Nursery Production, Plant Nutrition
Tagged fall fertilizing, Jen Llewellyn, onnurserycrops
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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
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
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.
Posted in Nursery Production, Plant Nutrition
Tagged Jen Llewellyn, omafra, phytoserv
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