Disease, nutrition, and control problems, with Dr. John Dempsey

Bill Kreuser from GreenKeeper joined me to discuss how much grass grows, the complicated problems involved when sand is mixed with clippings, growth regulator adjustments, leaf nutrient content, soil surfactant effect duration, and more. #ClipVolWe discussed the "Sand in clippings" post from the ATC website: https://www.asianturfgrass.com/post/sand-in-clippings/You can read more about our discussion of topics such as PGR and soil surfactant scheduling at https://www.greenkeeperapp.com/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Frank Rossi, Ph.D. is the New York State extension turfgrass specialist at Cornell University. We talked about mentorship, potassium, turf nutrition, smoothness of putting greens, dogma, data, budgets, and more.Here are some links:- https://cals.cornell.edu/frank-s-rossi- New podcast, Turf Without Borders: https://turfwb.asianturfgrass.com/episodes/st-andrews-old-new-jubilee-with-jon-wood- https://doublecut.asianturfgrass.com/episodes/frank-rossi-and-i-discuss-what-ive-called-my-least-favorite-experiment-ever- https://www.asianturfgrass.com/post/do-you-have-an-idea-why-they-recommend/- Video with Dr. Rossi & I on smoothness and trueness of putting greens: https://youtu.be/xIlgspZfzbg?si=9iPeueL5Y16Uk5qv- https://www.asianturfgrass.com/post/five-different-ways-to-measure-smoothness-trueness-ball-roll/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

The PACE Turf growth potential equation has one variable (the actual air temperature) and two constants. The constants are optimum air temperature and a term for variance that controls the shape of the curve as the actual temperature moves away from the optimum temperature. It's a little more complicated than that, because the constants change depending on whether you are making the calculation for cool-season grass, warm-season grass, and on whether you are using the Fahrenheit temperature scale or the Celsius temperature scale.The blog post discussed is https://www.asianturfgrass.com/post/calculating-gp/PACE Turf climate appraisal forms at: https://www.paceturf.org/journal/climateMore about GP and the variance term at https://www.asianturfgrass.com/post/what-is-variance-in-growth-potential-equation/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

You can expect soil organic matter to be 5% nitrogen, and you can expect from 1 to 4% of that organic nitrogen to mineralize in one year. You can also calculate estimated daily mineralization and sum it to get weekly, monthly, and annual totals.The blog post discussed is: https://www.asianturfgrass.com/post/estimating-nitrogen-mineralization-an-example/Subscribe to the Turf Without Borders podcast: https://turfwb.asianturfgrass.com/subscribeRead more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

This episode introduces multiple experiments that have demonstrated a link between rapid measurement of clipping volume and the clipping yield. Clipping yield is typically expressed as dry weight per area. Links to the articles discussed are in the blog post.Blog post on Converting Clipping Volume to Dry Weight: https://www.asianturfgrass.com/post/converting-clipping-volume-to-dry-weight/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Leah Brilman, Ph.D., is the Director of Product Management & Technical Services for Seed Research by DLF. We discussed velvet bentgrass, creeping bentgrass, and browntop bentgrass, along with seed production and grass performance.The bentgrass posts at the ATC website are at this link: https://www.asianturfgrass.com/tag/bentgrass/To see the word cloud with all the most frequent tagged topics, go to: https://www.asianturfgrass.com/#tagsI've spoken about browntop bentgrass management in New Zealand with Grant Saunders: https://youtu.be/CNA7EfvPHusRead more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Andrew McDaniel has been watching webinars to get education points, and some of these have been about management of soil organic matter on putting greens. We discussed a particular article and whether that method is something that seems reasonable today.The blog post we discussed is https://www.asianturfgrass.com/post/a-chance-to-update-my-advice/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Here are four specific things to look at with total organic material by depth (#OM246) test results. The blog post I discussed is this one: https://www.asianturfgrass.com/post/om246-reports-explained/The video in that post is https://youtu.be/wUtpJC1YPU0Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Matteo Serena is the Senior Manager of Irrigation Research and Services for the USGA. We discussed drip irrigation, growth regulators and soil surfactants, water use, overseeding, and bermudagrass vs. zoysiagrass water use.We discussed this ATC blog post: https://www.asianturfgrass.com/post/zoysia-and-water-use/We also discussed these articles: - https://www.usga.org/content/usga/home-page/course-care/green-section-record/61/issue-15/measuring-and-comparing-the-water-requirements-of-warm-season-gr.html#- https://doi.org/10.2134/agronj2018.03.0148See this zoysia video with Dr. Kenworthy: https://youtu.be/R6ZXW85mm84Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

I checked the top episodes, discussed turf terminology, and discussed the 2025 GCSAA Outstanding Contribution Award winners Dr. Wendy Gelernter and Dr. Larry Stowell.The four posts discussed in this episode are:https://www.asianturfgrass.com/post/the-turf-gvx-growth-versus-expected/https://www.asianturfgrass.com/post/seven-minutes-of-outstanding-contributions/https://www.asianturfgrass.com/post/football-seminar-in-bangkok/https://www.asianturfgrass.com/post/top-atc2x-episodes/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/