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Late summer questions to the Master Gardeners

This time of year, many of the messages coming into our local Master Gardener Help Desks are commonly asked questions that track with our seasonal weather. Here are a few: Q: My lawn has looked pretty good until two weeks ago, what’s up with all the...
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photo of downed tree

Understanding storm damage to trees

Strong winds and heavy rains have caused damage to our larger, older shade trees. Wind and rain together provide the “right ingredients” to bring down limbs, especially those that have had structural issues like decay or poor crotch angles, creating included bark which weakens the crotch physically...
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The gall of insects (tree bumps and lumps)

Gardeners have been seeing lots of lumps, bumps, and blobs on different kinds of leaves throughout the home landscape, or in parks and the forest preserves. It is not uncommon, as this occurs annually. What is uncommon is the generous number we are seeing this year. These growths are generally...
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The alien-looking fingers protruding from these crabapples release spores that can infect trees in the juniper family to perpetuate cedar-apple rust disease.

Plant Pathogen Spread

Whether its fungi, bacteria or even viruses, one of the most important aspects of plant disease management is stopping or limiting the spread of infectious pathogens.  I have always been fascinated by the way these tiny organisms, rarely visible to the naked eye, make their way through nature...
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Watering tips for hot weather

The hot, dry weather we have been getting – and will continue to get – changes how we are going to water the home landscape. Best management practices, or BMP, includes more than just watering (but water is so key to plant survival) and more than just your vegetable plants. Tips for...
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How much water does your garden need?

Originally published by Kelly Allsup on July 3, 2020. Last week's high temperatures and our limited amount of rain is making gardeners' number one job watering. Even though we have gotten some much-needed rain for the flowers and the trees, consistent watering throughout the season is...
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Tree troubles usually start at the base of the trunk

Tree troubles usually start at the base of the trunk

I get lots of pictures of sick trees. Most of the time the first photo sent to me is a declining canopy. Maybe a picture of an ugly leaf. After all, that’s what we tend to notice first as our eyes occasionally gaze upward to the living behemoths that shade our parks, yards, and homes. There is one...
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This two-spotted bumble bee forages pollen on the flower of a spirea shrub

Early History of Pollinators and Plants

This past week was National Pollinator Week, a time set aside to celebrate the amazing and monumental task that pollinators perform each and every growing season.  Worldwide, animals pollinate about seventy-five percent of all plant species, and about ninety percent of all flowering plants....
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Top 5 early summer topics for gardeners

Master Gardener Help Desk emails have really been different this past two weeks. Our early spring challenges have left and along came the first of our summer concerns in the landscape and vegetable beds. The list turned into more than a column’s worth, so going to hit the big ones this week:...
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Maple anthracnose, via U of I plant clinic

Too Much Moisture, More Tree Problems

If you are spending more time out in your backyard this week, you may have noticed some of our central Illinois trees are super ugly this spring. Maple leaves have black splotches, sycamore branches are falling to the ground and ginkgoes leaves are sparse and crinkled. All these symptoms are tree...
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College of Agricultural, Consumer & Environmental Sciences Illinois Extension

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Urbana, IL 61801

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