--- title: Ask Pat | Pat Gross description: A 38-year veteran of the golf course maintenance industry, Pat Gross joined Ewing in 2021 working in our Tech Services Group and with Ewing Golf. Pat's wide range of experience includes 28 years as a USGA agronomist, in turfgrass management, irrigation, and water use efficiency. --- ### Resources [![Ewing Outdoor Supply Logo V 4 Color](https://ewingirrigation-20200354.hs-sites.com/hubfs/Ewing%20Outdoor%20Supply%20Logo%20V%204%20Color.png) ](https://www.ewingoutdoorsupply.com/) [![Login/Register](https://no-cache.hubspot.com/cta/default/20200354/5d045e9a-574a-4a92-a8cc-1ce2a4352784.png)](https://cta-redirect.hubspot.com/cta/redirect/20200354/5d045e9a-574a-4a92-a8cc-1ce2a4352784) 0 You have no items in your shopping cart ### Shop Products Shop Products # Ask Pat Blog ## Your Agronomic Questions Answered ![Pat Gross](https://ewingirrigation-20200354.hs-sites.com/hubfs/ewing-irrigation-agronomist-pat-gross.jpg) ## Pat Gross A 38-year veteran of the golf course maintenance industry, Pat Gross joined Ewing in 2021 working in our Tech Services Group and with Ewing Golf. Pat's wide range of experience includes 28 years as a USGA agronomist, in turfgrass management, irrigation, and water use efficiency. ### Recent Posts [![Pat Gross in a bunker](https://ewingirrigation-20200354.hs-sites.com/hubfs/header.jpg) ](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tips-for-maintaining-bunker-sand) ## [Tips for Maintaining Bunker Sand](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tips-for-maintaining-bunker-sand) By [Pat Gross](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/pat-gross) on August 28, 2023 Bunker sand naturally gets contaminated over time due to silt, clay and organic debris build-up, but it can last for 10... [![ester-amine](https://ewingirrigation-20200354.hs-sites.com/hubfs/ask_pat/ester-amine-1.jpg) ](https://ewingirrigation-20200354.hs-sites.com/ask-pat/ester-vs.-amine-formulations) ## [Ester Vs. Amine Formulations](https://ewingirrigation-20200354.hs-sites.com/ask-pat/ester-vs.-amine-formulations) By [Pat Gross](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/pat-gross) on August 16, 2023 Q: I’ve noticed that some broadleaf herbicides, especially 2,4-D, come in an ester or an amine formulation. How do I... [![Gypsum salt application on turf](https://ewingirrigation-20200354.hs-sites.com/hubfs/ask_pat/gypsum-salt-1.jpg) ](https://ewingirrigation-20200354.hs-sites.com/ask-pat/gypsum-application-best-practices) ## [Gypsum Application Best Practices](https://ewingirrigation-20200354.hs-sites.com/ask-pat/gypsum-application-best-practices) By [Pat Gross](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/pat-gross) on August 16, 2023 Q: I’ve heard that applying gypsum to my turf will help reduce salts in the soil. Is that true? A: That is partially... [![Aeration in turf](https://ewingirrigation-20200354.hs-sites.com/hubfs/ask_pat/aeration-turf-askpat.jpg) ](https://ewingirrigation-20200354.hs-sites.com/ask-pat/proper-timing-for-flushing-and-aeration) ## [Proper Timing for Flushing and Aeration](https://ewingirrigation-20200354.hs-sites.com/ask-pat/proper-timing-for-flushing-and-aeration) By [Pat Gross](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/pat-gross) on August 16, 2023 Q: Is it better to flush salts out of my greens before aeration or after? A: It is better to schedule a deep irrigation... ### Looking for More? ### Topics - [Turf (2)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/turf) - [Aeration (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/aeration) - [Golf Course (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/golf-course) - [Herbicides (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/herbicides) - [Sand Topdressing (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/sand-topdressing) - [Turf Management (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/turf-management) - [Weed Control (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/weed-control) - [flushing (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/flushing) - [golf maintenance (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/golf-maintenance) - [gypsum (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/gypsum) - [weeds (1)](https://ewingirrigation-20200354.hs-sites.com/ask-pat/tag/weeds) ## Related [ Managing Sports Fields with Smart Irrigation Technology ](https://ewingirrigation-20200354.hs-sites.com/managing-sports-fields-with-smart-irrigation-technology) By [Ian Yarian](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/ian-yarian) On July 2, 2026 [ Smart Irrigation Starts with the Controller ](https://ewingirrigation-20200354.hs-sites.com/smart-irrigation-starts-with-the-controller) By [Greg Williams](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/greg-williams) On June 30, 2026 [ Reducing Water Waste with Smart Irrigation Opportunities ](https://ewingirrigation-20200354.hs-sites.com/reducing-water-waste-with-smart-irrigation-opportunities) By [Ewing Outdoor Supply](https://ewingirrigation-20200354.hs-sites.com/ask-pat/author/ewing-outdoor-supply) On June 30, 2026 ## Related ### Ask Pat When you’re looking for answers to specific questions about agronomy, Pat Gross is here to help. 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