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Average (±standard error) annual bluegrass weevil larval instar (L1–5) distribution at 10, 17 and 24 days post infestation (DPI) from annual bluegrass, creeping bentgrass, perennial ryegrass, zoysiagrass and hybrid bermudagrass in no-choice bioassays. Columns with the same uppercase letter denote no significant difference in larval recovery between instars (L1–5) within turfgrass species/cultivars. Columns with the same lowercase letter denote no significant differences within recovered larvae by instar (L1–5) between turfgrass species/cultivars at α = 0.05.

Turfgrass chemistry and annual bluegrass weevil survival

April 23, 2026 By and
Strongly associated with annual bluegrass (Poa annua), the pest expanded rapidly beginning in the late 1990s.  ...

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Mike Kenna, Ph. D.

What a 1990s biological experiment still teaches turf managers today

April 23, 2026 By
BioJect asked superintendents to make a leap of faith at a time when the science had not caught up to the vision. ...

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Photo: ImagineGolf / E+ / Getty Images

Super Science: Recent research on golf course fertilization

April 23, 2026 By
Recent golf course research shows fertilization programs shifting toward precise, data-guided nutrient applications that protect the environment. ...

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Ken Rost, founder of Frost, Inc., shows Ian Gallagher, CGCS, Sand Ridge GC, Chardon, Ohio, the ins and outs of the company’s GPS sprayer. “There are so many resources, so many people who make our lives easier,” Gallagher told Golfdom. “I end up with a lot of Envu, Syngenta and recently Quali-Pro with Suprado. They’ve made my life a lot easier.” (Photo: Golfdom staff)

Standing Room Only: A Golfdom Summit 2025 recap

April 22, 2026 By
A look inside the two-and-a-half most productive days in golf maintenance: the annual Golfdom Summit. ...

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The GCSAA’s 100-year celebration began at ICON Park, where I ran into longtime friend of Golfdom, Mark Woodward, CGCS, and his wife Amy. (Photo: Golfdom staff)

Important takeaways from the ’26 GCSAA Show

April 22, 2026 By
Wrapping up a successful GCSAA Trade Show with more than a few notes of what I saw and learned. ...

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Graphic: Golfdom staff

The 19th Hole: Chris Sheffield

April 22, 2026 By
Lagoon Park GC superintendent Chris Sheffield covers his path into turf, life as an Alabama fan and more. ...

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