Plant disease

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How to grow and care for hollyhocks. Dark purple hollyhock flower
How to grow and care for hollyhocks
Hollyhocks (Alcea rosea) have been growing in gardens for centuries and remind many of us of our parents’ or grandparents’ gardens. Despite...
apple leaf with apple scab
Is your crabapple losing leaves? Apple scab may be to blame
The problem with many plant diseases is once you notice them it’s often too late. That’s especially true with our trees. We often don’t gaze at the...
Managing fire blight at home. Apple tree shoot infected with fire blight. Shot is brown and the tip has curled down forming a shepherds crook.
Managing fire blight in apples and pears at home
Apples and pears are popular trees to grow for people interested in growing their own fruit. However, they aren't without any problems. A variety of...
What’s the real deal with cover crops and SCN?
I think it is high time that I write to inform you about my Ph.D. research at Iowa State University where I studied the impact of cover crops on the...
Managing brown rot of peaches and other stone fruit in the garden. Peach fruit infected with brown rot. Fruit is covered in brown fuzzy mass.
Manage brown rot of peaches and other stone fruit in the garden
Have you ever gone out to pick a peach only to find they have a large brown, mushy spot? Or perhaps you've brought some peaches home from the farmers...
corn tar spot
Corn tar spot disease monitoring in Illinois
Tar spot on corn is here to stay in Illinois. Given that the pathogen that causes tar spot on corn can overwinter in infected residue, once the...
You don’t know what you have till it’s gone
To many, science can seem like magic. Abracadabra and *whoosh* something appears seemingly out of thin air. However mystical and misunderstood...
A mature American elm at Morton Arboretum in Lisle, IL
Breeding elms to combat Dutch elm disease
Over this past week, the fall weather has brought bare branches to the previously color-filled canopies of so many trees in the landscape.  As the...

News Releases

pumpkins and mums near wagon
Holiday favorite gourd is good to go for 2022
Few of us stop to wonder how that slice of pumpkin pie made it onto our plate, but if it weren't for the Illinois pumpkin industry and plant pathologist and Extension specialist Mohammad Babadoost, the classic fall dessert...
Guide outlines steps to take when pesticide drift occurs
URBANA, Ill. – Pesticides assist in managing pests. People should use precise application techniques detailed on the label so they don’t endanger people, pets, livestock, plants, and the environment. Damage can occur when pesticide drifts from its intended location onto adjacent fields...
Six ways to keep your hosta foliage looking great
A mainstay of any shade garden in the Midwest, Hostas are grown partly for their flowers but mainly fabulous foliage. To keep that foliage looking great, watch out for these problems. Fortunately, you are far less likely to run into Hosta Virus X (HVX) today than a decade ago, thanks to...
Extension offers best gardening tips for fall season
URBANA, Ill. – As fall approaches, trees begin to change color, cold weather sweeps in, and garden prepping for winter begins.  A free three-part University of Illinois Extension online webinar series will help gardeners prepare for the cold...

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