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Artwork for Turfgrass Epistemology

Turfgrass Epistemology

Travis Shaddox
Soil Testing
Base Cation Saturation
Turfgrass Science
Soil Ph
Turfgrass Management
Turfgrass
Turf Management
Magnesium
Thatch Accumulation
Nitrogen Sources
Nutrient Availability
Calcium To Magnesium Ratios
Soil Nutrients
Phosphorus Availability
Phosphorus
Calcium
Bermudagrass
Soil Analysis
Home Soil Test Kits
Environmental Impact Of Fertilizers

This podcast explores how we know what we know about turfgrass science. If you are a lawn care operator, sport field manager, sod producer, golf superintendent, or a home owner, this podcast provides evidence-based information to help you better manage your turfgrass.

PublishesTwice weeklyEpisodes250Founded2 years ago
Number of ListenersCategories
EducationScienceEarth Sciences

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Artwork for Turfgrass Epistemology

Latest Episodes

In this episode of Turfgrass Epistemology, I walk through a recent peer-reviewed study that examines how potassium fertilization influences dollar spot severity on annual bluegrass (Poa annua) and creeping bentgrass (Agrostis stolonifera) putting gre... more

In this episode of Turfgrass Epistemology, I review and respond to comments, emails, and TikTok messages I’ve received throughout 2025 related to turfgrass science, soil fertility, nutrient management, and common turf industry claims.

From thoughtfu... more

In this episode of Turfgrass Epistemology, I sit down with Dr. John Inguagiato to discuss his peer-reviewed research on phosphite use for suppressing cyanobacteria (blue-green algae) on putting greens. Together, we break down the science behind phosp... more

In this video I take a close, critical look at "Data-Drive Lawn Care" (www.youtube.com/watch?v=pjRXNcIi3Hk) and share my honest thoughts on what works — and what doesn’t. I break down the arguments, highlight where I think the logic falls sho... more

Key Facts

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Contact Information
Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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Recent Guests

Dr. John Inguagiato
Associate Professor of Turfgrass Pathology at the University of Connecticut
University of Connecticut
Episode: S3 E66 Dr. John Inguagiato. Can Phosphite Reduce Algae?
Dr. Lee Miller
Director of research and extension programs focused on disease control in turf grasses at Purdue University
Purdue University
Episode: S3 E62 Dr. Lee Miller - Turf Fungicide Resistance?
Dr. Shaddix
Episode: S3 E56 University Extension Programs
Dr. Matteo Serena
Senior Manager for Irrigation Research and Services at the USGA
United States Golf Association
Episode: S3 E21 Dr. Matteo Serena - Optimizing Irrigation Frequency Needed to Establish Cool-Season Turfgrasses
Dr. Serena
Turfgrass Water Specialist
Episode: S3 E20 Comments and Emails. April 2025.
Dr. John Dempsey
An expert in turfgrass science and research
Episode: S2 E96 Dr. John Dempsey - Potassium Phosphite Translocation in Turfgrass
Dr. Bill Kreuser
A turfgrass scientist and professor with expertise in phosphorus management and growth regulators.
Greenkeeper
Episode: S2 E87 Dr. Bill Kreuser - Phosphorus Requirements for Creeping Bentgrass Putting Greens
Chris Borgman
CEO at Predictive Nutrient Solutions
Predictive Nutrient Solutions
Episode: S2 E75 More soil testing, more BS!
Matt Williams
Director of R&D at Predictive Nutrient Solutions
Predictive Nutrient Solutions
Episode: S2 E75 More soil testing, more BS!

Host

Travis Shaddix
Host of Turfgrass Epistemology, known for advocating evidence-based practices and critical thinking in turfgrass management.

Reviews

4.9 out of 5 stars from 34 ratings
  • Informative and entertaining

    We need more Tinfoil Turfgrass episodes! Keep up the good work!

    Apple Podcasts
    5
    Madison Grassman
    United States10 months ago
  • Love Shaddox!

    Really enjoy having this podcast queued up. Dr. Shaddox does a great job of sharing his knowledge (especially with a trained monkey like myself) while still holding my attention.

    Apple Podcasts
    5
    Jrpinkerton
    United States2 years ago
  • I want to like this podcast.

    Travis speaks like a true professor. Dull and monotone. His sentences start off normal and then he eventually ends them mumbling in a low voice. Maybe it’s just me, but if there is any background noise I can’t understand half of what he’s saying. Grab a good pair of isolation headphones. You’ll need them.

    Apple Podcasts
    1
    dbstover
    United States2 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Many enjoy the scientific approach taken in discussions, affirming the importance of evidence-based practices in their field.
Listeners appreciate the informative and engaging content, highlighting the practical knowledge gained for turf management.
Some find the delivery style monotonous, which may detract from the overall listening experience.

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Talking Points

Recent interactions between the hosts and their guests.

S3 E66 Dr. John Inguagiato. Can Phosphite Reduce Algae?
Q: Can phosphites be used curatively?
Phosphites can be effective curatively, but preventive applications are usually recommended for better results.
S3 E62 Dr. Lee Miller - Turf Fungicide Resistance?
Q: Can the repeated use of Azoxystrobin actually lead to worse dollar spot or leaf spot than if no fungicide had ever been used at all?
No, there is no research indicating that using Azoxystrobin makes it worse, although it does not control dollar spot.
S3 E62 Dr. Lee Miller - Turf Fungicide Resistance?
Q: What is fungicide resistance and how does someone differentiate between resistance and an application error?
Fungicide resistance is a stable change of the pathogen allowing it to overcome fungicide effectiveness. It can be distinguished from application errors by continuous failure of the fungicide despite repeated applications.
S3 E54 The Rise and Fall of University Turfgrass Programs
Q: What can we do to get more young adults involved in Turfgrass and keep the Turfgrass colleges alive?
The faculty members often share their stories about how they got involved, typically through outdoor experiences from their childhood. Today's generation lacks such experiences, making it challenging to engage them in turfgrass science and agriculture.
S3 E27 Tinfoil Turfgrass - How to Apply Iron from Someone Who Knows Nothing About Iron.
Q: How do you determine the amount of fertilizer to use on your lawn?
The best approach is to get a soil test to determine nutrient levels.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

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Frequently Asked Questions About Turfgrass Epistemology

What is Turfgrass Epistemology about and what kind of topics does it cover?

Content consistently centers around providing evidence-based insights concerning turfgrass science, making it an invaluable resource for professionals involved in lawn care and turf management. Recent episodes highlight critical discussions on topics such as soil management, turf diseases, and innovative agricultural practices, emphasizing the importance of scientific rigor in the turfgrass industry. Unique features include listener-driven content, where viewer feedback shapes episodes, ensuring that real-world issues faced by turf managers are addressed. Through its expert interviews and analytical discussions, the show seeks to demystify common misconceptions and promote best practices in turfgrass management.

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How many listeners does Turfgrass Epistemology get?

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To see how many followers or subscribers Turfgrass Epistemology has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

Which podcasts are similar to Turfgrass Epistemology?

These podcasts share a similar audience with Turfgrass Epistemology:

1. The ATC Doublecut with Micah Woods
2. USGA Green Section Podcast
3. The EarthWorks Podcast
4. The Joe Rogan Experience
5. The Ramsey Show

How many episodes of Turfgrass Epistemology are there?

Turfgrass Epistemology launched 2 years ago and published 250 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Turfgrass Epistemology?

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What guests have appeared on Turfgrass Epistemology?

Recent guests on Turfgrass Epistemology include:

1. Dr. John Inguagiato
2. Dr. Lee Miller
3. Dr. Shaddix
4. Dr. Matteo Serena
5. Dr. Serena
6. Dr. John Dempsey
7. Dr. Bill Kreuser
8. Chris Borgman

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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