Episodes

  • S4 E33 What Astrology, Personality Tests, and Soil Tests Have in Common
    Jun 30 2026

    Why do generic soil reports feel surprisingly accurate? In this video, we explore the Forer Effect and discuss how vague, universally true statements can create the illusion of personalized insight—whether in personality tests, astrology, or soil analysis.

    Paper: The Fallacy of Personal Validation: A Classroom Demonstration of Gullibility (1949) Author: Bertram R. Forer

    #ForerEffect #BarnumEffect #Psychology #CriticalThinking #SoilScience #Turfgrass #ScienceCommunication

    Become a member of Turfgrass Epistemology and support turfgrass research: www.youtube.com/@TurfgrassEpistemology/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

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    54 mins
  • S4 E32 Bandwagon Appeal and Social Pressure
    Jun 25 2026

    Why do people conform to group pressure even when they know the group is wrong? In this video, we explore Solomon Asch's landmark conformity study, Opinions and Social Pressure (1955), and reveal what his famous experiments teach us about social influence, peer pressure, independent thinking, and human psychology.

    Paper: Opinions and Social Pressure (1955) Author: Solomon E. Asch

    #Psychology #Conformity #AschExperiment #SocialPsychology #PeerPressure #BehavioralScience

    📌 https://www.gofundme.com/f/TurfgrassEpistemology

    Thank you for being part of this community and for supporting evidence-based turfgrass science.

    Join Turfgrass Epistemology to get access to perks: https://www.youtube.com/channel/UC-UZnHkJhAmARDZ4YoHnc_A/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view

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    1 hr and 1 min
  • S4 E31 Dr. Jada Powlen - Summer Nitrogen on Tall Fescue?
    Jun 23 2026

    Does summer nitrogen really make brown patch worse in tall fescue? In this interview, Dr. Jada Powlen discusses her 2024 study and explains why cultivar selection may be more important than nitrogen rate for managing brown patch disease.

    Paper: Brown patch severity of five tall fescue cultivars as influenced by summer nitrogen rates (2024) Authors: Jada S. Powlen, James P. Kerns, Michael A. Fidanza, and Cale A. Bigelow

    #BrownPatch #TallFescue #Turfgrass #Nitrogen #LawnCare #TurfScience #PlantPathology

    Become a member of Turfgrass Epistemology and support turfgrass research: www.youtube.com/@TurfgrassEpistemology/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

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    59 mins
  • S4 E30 Does Manganese Influence Take-All Disease?
    May 28 2026

    In this video, I break down the classic study “Optimizing Manganese Fertilization for the Suppression of Take-All Patch Disease on Creeping Bentgrass.” We examine whether manganese applications can suppress take-all patch, how application timing influences disease control, and why soil chemistry matters.

    The results showed that manganese fertilization significantly reduced take-all patch severity, especially when soil manganese availability was low.

    If you're interested in take-all patch management, manganese fertility, creeping bentgrass, and evidence-based turfgrass science, this is a must-watch discussion.

    #turfgrass #takeallpatch #manganese #soilscience #bentgrass #golfcoursemanagement #turfgrassscience

    📌 https://www.gofundme.com/f/TurfgrassEpistemology

    Thank you for being part of this community and for supporting evidence-based turfgrass science.

    Join Turfgrass Epistemology to get access to perks: https://www.youtube.com/channel/UC-UZnHkJhAmARDZ4YoHnc_A/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view

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    1 hr and 12 mins
  • S4 E29 Can Silicon Reduce Turfgrass Disease?
    May 7 2026

    In this video, I break down the study “Evaluation of Calcium Silicate for Brown Patch and Dollar Spot Suppression on Turfgrasses.” We examine whether calcium silicate (Si fertilizers) actually suppress turfgrass diseases like brown patch and dollar spot.

    The results show that calcium silicate did not reduce dollar spot and, in some cases, actually increased brown patch severity, likely due to nutrient imbalances rather than any true disease suppression effect.

    If you're interested in silicon fertilizers, disease control, and evidence-based turfgrass management, this is a must-watch breakdown.

    #turfgrass #dollarspot #brownpatch #soilscience #fertilizer #turfgrassscience #golfcoursemanagement

    📌 https://www.gofundme.com/f/TurfgrassEpistemology

    Thank you for being part of this community and for supporting evidence-based turfgrass science.

    Join Turfgrass Epistemology to get access to perks: https://www.youtube.com/channel/UC-UZnHkJhAmARDZ4YoHnc_A/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view

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    1 hr and 2 mins
  • S4 E28 Does Biological Disease Control Work on Turfgrasses?
    May 5 2026

    In this video, I break down the research on biological and oil-based fungicides for dollar spot control in turfgrass. We examine whether products like biological fungicides, mineral oils, and plant-based treatments actually work compared to traditional chemistry.

    The results show that most biological products failed to provide consistent, season-long dollar spot control, while some oil-based products offered limited suppression under lower disease pressure.

    If you're interested in dollar spot management, fungicide alternatives, and evidence-based turfgrass science, this video is for you.

    #turfgrass #dollarspot #fungicide #soilscience #golfcoursemanagement #lawncare #turfgrassscience

    Become a member of Turfgrass Epistemology and support turfgrass research: www.youtube.com/@TurfgrassEpistemology/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

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    59 mins
  • S4 E27 Tinfoil Turfgrass - 35 Years of Experience. 35 Years of Bullsh*t.
    Apr 30 2026

    In this video, I break down a lawn care discussion on nitrogen fertilizers and turfgrass performance, separating what’s scientifically sound from what may be oversimplified.

    We take a closer look at how nitrogen source, timing, and application strategy actually influence turfgrass growth—and whether the claims being made hold up under turfgrass science and soil fertility principles.

    If you're trying to better understand lawn fertilizers, nitrogen management, and turfgrass health, this video will help you make more informed, evidence-based decisions.

    #turfgrass #lawncare #fertilizer #nitrogen #soilscience #turfgrassepistemology #lawntips 📌 https://www.gofundme.com/f/TurfgrassEpistemology

    Thank you for being part of this community and for supporting evidence-based turfgrass science.

    Join Turfgrass Epistemology to get access to perks: https://www.youtube.com/channel/UC-UZnHkJhAmARDZ4YoHnc_A/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view

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    1 hr and 37 mins
  • S4 E26 Tinfoil Turfgrass - How to With Steve and BS Booster!
    Apr 28 2026

    In this video, I break down the “DirtBooster Organic Lawn and Garden Treatment” video from How to With Doc and take a closer look at the claims around soil microbes, biochar, humic substances, and “super compost.”

    The product is promoted as a way to rapidly build soil biology using ingredients like biochar, molasses, and microbial additives, but does the science support the idea that this translates into better turfgrass performance?

    We evaluate the logic, the mechanisms being implied, and whether these types of organic amendments actually deliver measurable benefits in turfgrass systems, lawn care, and soil management.

    #turfgrass #lawncare #soilscience #organicfertilizer #biochar #humicacid #turfgrassepistemology

    Become a member of Turfgrass Epistemology and support turfgrass research: www.youtube.com/@TurfgrassEpistemology/join

    Voicemail: 859-444-4234

    Apple Podcast https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean https://turfgrassepistemology.podbean.com/

    Online consulting Calendly.com/TravisShaddox

    Twitter Twitter.com/TravisShaddox

    Email TravisShaddox@gmail.com

    Turfgrass Programs and Extension Service Information: https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

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    1 hr and 13 mins