Keeping Brown Patch at Bay
Brown patch spreading on a tall fescue lawn (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

Brown patch spreading on a tall fescue lawn (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

Conditions are perfect for brown patch to ravage your lawn. Control isn’t easy and it may be better to give up and wait for the fall to reseed areas where the fungus damaged your grass.

Today’s guest is Lee Miller, a plant pathologist for University of Missouri Extension. He has tips for controlling brown patch and lawn maintenance practices that can curb the spread of the disease.

 

 

Identification and Management of Turfgrass Diseases

Brown Patch Lawn Disease Could Erupt in Home Landscapes This Summer
Brown spot in a tall fescue lawn (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

Brown spot in a tall fescue lawn (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

Nitrogen fertilizer, heat and water is like ringing the dinner bell for fungi hoping to snack on your nice green lawn. If you have tall fescue, the culprit is Rhizoctonia solani, which causes brown patch. As the name implies, brown patches show up in your lawn. Many homeowners, when they see their grass turn brown, add fertilizer and water to help it green up. Big mistake, your giving the fungus exactly what it needs.

Today’s guest is Brad Fresenburg, turf specialist for University of Missouri Extension. He has information about dealing with brown patch, how to recognize it and how to treat it.

 

 

Identification and Management of Turfgrass Diseases

 

You can brown patch  tan lesions on the blade of tall fescue (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

You can see brown patch tan lesions on the blade of tall fescue (Photo by Brad Fresenburg, turf specialist for University of Missouri Extension)

 

Forget April — May Had All the Showers
Bad weather always looks worse through a window. ~ Tom Lehrer, singer-songwriter

Bad weather always looks worse through a window. ~ Tom Lehrer, singer-songwriter

May was very wet in Missouri with some parts of the state getting more than 10 inches of rain. But, all that precipitation could be good news for the summer forecast.

Today’s guest is Pat Guinan, climatologist for University of Missouri Extension’s Commercial Agriculture Program.

 

Got Calcium? Your Tomatoes Need It
Blossom-end rot is first seen when tomatoes are one-third to one-half full size. (Photo by Patrick Byers, University of Missouri Extension)

Blossom-end rot is first seen when tomatoes are one-third to one-half full size. (Photo by Patrick Byers, University of Missouri Extension)

When tomatoes, peppers, melons, and eggplant develop a sunken, rotten spot on the end of the fruit it’s not caused by a disease or insect pest. It happens when the plant doesn’t get enough calcium. It’s a fairly common garden problem. Turns out there are lots of things that can happen that can deny calcium to your plants.

Today’s guest is David Trinklein, horticulture specialist for University of Missouri Extension. He discuss the causes and how to prevent it.

 

 

Growing Home Garden Tomatoes

The Noise, Noise, Noise, Noise – Periodical Cicadas Arriving in Missouri
“Do you know the legend about cicadas? They say they are the souls of poets who cannot keep quiet because, when they were alive, they never wrote the poems they wanted to.” ~ John Berger, author (Photo by Roger Meissen)

“Do you know the legend about cicadas? They say they are the souls of poets who cannot keep quiet because, when they were alive, they never wrote the poems they wanted to.” ~ John Berger, author (Photo by Roger Meissen)

It’s an amazing event that only occurs in North America. Periodical cicadas live underground for 13 and 17 years, and then in one mass reproduction cession the crawl out of the ground and take to the trees. They will come out in the thousands, and it can be very overwhelming because these insects will make a lot of noise for several weeks. This year the periodical cicadas will emerge in Kansas City and Cape Girardeau.

Today’s guest is Bruce Barrett, entomologist for University of Missouri Extension. He has lots of information about these fascinating insects and this amazing event.

 

 

Periodical Cicadas in Missouri

Cool, Wet Weather Makes Fungus Flourish
"Someone is sitting in the shade today because someone planted a tree a long time ago" ~ Warren Buffett, American Businessman (Photo by Debbie Johnson)

“Someone is sitting in the shade today because someone planted a tree a long time ago” ~ Warren Buffett, American Businessman (Photo by Debbie Johnson)

An annual curse when cool, wet springs trigger anthracnose to flourish. It’s caused by a group of fungi that can attack trees, shrubs, flowers and just about anything green.

Today’s guests are Hank Stelzer, forestry specialist for University of Missouri Extension and Patricia Hosack, director of the MU Plant diagnostic clinic. Both discuss this disease and why it’s important to keep trees healthy so they can survive the attack of anthracnose.

 

 

Anthracnose on Shade Trees

Rose Rosette – A Deadly Virus in Roses
The witch's broom stem and leaves on a rose infected with rose rosette (Photo by Chris Starbuck)

The witch’s broom stems and leaves on a rose infected with rose rosette (Photo by Chris Starbuck)

Commonly found on wild roses (Rosa Multiflora) in Midwestern, Southern and Eastern U.S., rose rosette is a virus that is 100% fatal in all roses. This is a heartbreaker for the rose loving gardener because there is no cure.

Today’s guest is David Trinklein, horticulture specialist for University of Missouri Extension.  He has more information on rose rosette including symptoms and best method for removing infected plants.

 

 

Rose Rosette Disease

Improving Knee Injury Repair
"My back only bugs me when I sleep wrong. I feel my knee more than anything, the left one. It's arthritic." ~ Joe Montana

“My back only bugs me when I sleep wrong. I feel my knee more than anything, the left one. It’s arthritic.” ~ Joe Montana

One of the most common knee injuries is a torn meniscus. The menisci are two C-shaped pieces of cartilage that act like a cushion between the shinbone and the thighbone.

Today, on Mizzou Spotlight on Science, host Nathan Hurst talks with a University of Missouri physical therapy professor who is working to improve knee-injury repair and to better understand arthritis.

Mapping the Cat
If animals could speak, the dog would be a blundering outspoken fellow; but the cat would have the rare grace of never saying a word too much. ~ Mark Twain

If animals could speak, the dog would be a blundering outspoken fellow; but the cat would have the rare grace of never saying a word too much. ~ Mark Twain

Understanding the genetic map of cats can easily bridge our understanding of human genes and diseases.

Today, on Mizzou Spotlight on Science, host Nathan Hurst looks at a project called “99 Lives,”  University of Missouri research that will map the genetic sequence of 100 cats.

 

 

The Origin of Human Migration to North America
“Evolution could so easily be disproved if just a single fossil turned up in the wrong date order. Evolution has passed this test with flying colors.”  ~ Richard Dawkins, evolutionary biologist

“Evolution could so easily be disproved if just a single fossil turned up in the wrong date order. Evolution has passed this test with flying colors.” ~ Richard Dawkins, evolutionary biologist

The dates and migration routes for Paleo-Indian migration are still being debated.

Today, on Mizzou Spotlight on Science, host Nathan Hurst discusses a University of Missouri research team that questions a newer theory about early migration to North America.