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Poisonous Plants

How many times have you been kept up at night worrying about a poisonous plant?  Hopefully, for most of us the answer to that question will be ‘not many’.  For better or worse, humankind has not always had a well-defined separation from the plant world as we often see today.  With...
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The green foliage in this picture is bush honeysuckle, which is an invasive species that dominates forest understories in Illinois. If not weeded out...

Weeding out Invasives

The management of Illinois’ forests has become an increasingly difficult task for landowners focused on maintaining and enhancing native plant diversity. I have often thought of it as a similar process to weeding a vegetable garden, with a diverse mix of our native forest trees as the vegetable...
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illinois forest

Forest Management, HIPP and RCPP

The management of Illinois’ forests has become an increasingly difficult task for landowners focused on maintaining and enhancing native plant diversity.  I have often thought of it as a similar process to weeding a vegetable garden, with a diverse mix of our native forest trees as the...
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This rhododendron shoot is infected with the pathogen Phytopthora ramorum, displaying the typical symptoms of ramorum blight. PC UI Plant Clinic

Rapid Response to Ramorum Blight

In early July, the Illinois Department of Agriculture submitted a press release detailing the detection of a new pathogen in Illinois that threatens our native oaks. This non-native pathogen is the causal agent for a very serious disease known as sudden oak death. However, there may be some good...
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Galls Abound All Around

This season gardeners have been seeing many lumps, bumps and blobs on all kinds of plants throughout the landscape, in parks and forest preserves. It is not uncommon since this occurs annually, what is uncommon is the generous number of these growths we are seeing.   These are generally...
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Hackberry Gall

As you might imagine, my family spends a considerable amount of time out observing the wonders of the natural world, and I am always fascinated by the way my kids view and interpret things in nature. Many times, their straightforward and simple perspective makes me feel like such a dummy. There is...
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Garden Storm Damage

Imagine spending years establishing and cultivating a beautiful landscape on your property, only for it to be destroyed in a heartbeat from a severe storm.  Couple that with a limb through your roof and you have a real disaster on your hands!  Who do you call?  What do you do about...
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Maple Seed Production

What kid doesn’t love those maple ‘helicopters’?  I grew up with two large silver maples (Acer saccharinum) in our yard and can always remember the late spring ritual of playing with one of the best toys ever produced by nature, the maple samara.  These winged seeds rapidly go...
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Apple trees in our area are in full bloom this week.  Unlike peach trees which suffered cold damage, many apple trees in central Illinois seem to have endured.

Fruit Trees and Winter Injury

Winter injury is a common problem among fruit trees grown in our area and this year’s up and down spring temperatures resulted in damage to flower buds across central Illinois.  Cold weather in some years can bring damage to many ornamental tree species as well, impacting much anticipated...
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Osage Orange

In many communities there are iconic trees that nearly everyone recognizes and admires in passing during daily life.  The spreading, stately tree at the corner of University and Prospect Avenue in Champaign is certainly a historic and interesting specimen.  I cannot count the times that...
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College of Agricultural, Consumer & Environmental Sciences Illinois Extension

101 Mumford Hall (MC-710)

1301 W. Gregory Dr.

Urbana, IL 61801

Email: extension@illinois.edu

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