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

In this video, I break down a popular lawn care video on soil testing, pH, and nutrient recommendations and separate what’s useful from what may be misleading.

We take a closer look at how soil test results are interpreted, whether the recommendations actually make sense, and how to approach fertility decisions using evidence-based turfgrass science.

If you're trying to better understand soil tests, lawn care recommendations, pH adjustment, and fertilizer decisions, this discussion will help you think more critically about what to trust—and why.

#turfgrass #soiltesting #lawncare #fertilizer #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

In this video, I break down a lawn care video making the rounds online and separate what sounds right from what’s actually supported by turfgrass science. We take a closer look at the claims, the reasoning behind them, and whether they hold up when you apply basic principles of soil science and plant physiology.

If you're trying to cut through the noise in lawn care advice, turfgrass management, and fertilizer recommendations, this episode will help you think more critically about what you’re hearing—and why it matters.

#turfgrass #lawncare #soilscience #fertilizer #turfgrassepistemology #lawntips #golfcoursemanagement

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

In this video, I respond to comments and emails and answer a common question: Why do dog urine (pet) spots last so long in turfgrass? We break down the science behind nitrogen burn, salt injury, and recovery limitations in lawns.

If you’ve ever struggled with dog spots, lawn damage, or uneven turf recovery, this episode will help you understand what’s really happening—and what actually works.

#turfgrass #lawncare #dogspots #soilscience #fertilizer #lawntips #turfgrassepistemology

📌 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

In this episode, I sit down with Rob from Turf Therapy and Cam from Elevated Lawnscapes to talk all things lawn care, content creation, and turfgrass management. We discuss their approach to building great lawns, lessons learned on YouTube, and how they balance real-world lawn care with online advice.

This is a great conversation for anyone interested in DIY lawn care, turfgrass tips, and the growing lawn care YouTube community.

#turfgrass #lawncare #lawnyoutube #turftherapy #elevatedlawnscapes #DIYlawn #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

In this video, I break down the study “Influence of Calcium and Nitrogen Fertilizer on Creeping Bentgrass Infected with Dollar Spot.” We examine whether it is calcium or lime that actually suppresses dollar spot, how it compares to nitrogen, and what happens when the two are applied together.

The results show that both calcium and nitrogen reduced disease individually, but combining them was less effective due to antagonism, with calcium also improving root growth and stress tolerance rather than directly controlling disease. Unfortunately, the authors do not discuss the influence of lime rather than the calcium. This mistake greatly reduces our confidence in the results.

If you're interested in dollar spot management, calcium fertility, nitrogen effects, and turfgrass disease control, this is a must-watch breakdown.

#turfgrass #dollarspot #soilscience #calcium #fertilizer #golfcoursemanagement #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

In this video, I break down the classic study “Microbial Populations and Suppression of Dollar Spot Disease in Creeping Bentgrass with Inorganic and Organic Amendments.” We take a close look at whether organic fertilizers actually suppress dollar spot and how they influence microbial populations in turfgrass systems.

The results show that while some organic amendments increased microbial activity, dollar spot suppression was inconsistent and often less effective than fungicides, with nitrogen and growth response playing a major role.

If you’re interested in dollar spot control, soil microbes, organic vs synthetic fertilizers, and turfgrass disease management, this is a must-understand paper.

#turfgrass #dollarspot #soilmicrobiology #fertilizer #turfgrassscience #golfcoursemanagement #IPM 📌 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

In this episode, I interview Dr. Scott McElroy (Auburn University) about weed control in turfgrass, including best practices for herbicide timing, resistance management, and how herbicides interact with insecticides. We also discuss common mistakes, application strategies, and where to find reliable, evidence-based recommendations.

If you manage turf, this conversation will help you improve your weed identification, herbicide programs, and integrated pest management (IPM) decisions.

#turfgrass #weedcontrol #herbicides #IPM #golfcoursemanagement #turfgrassscience #agronomy

📌 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