Tag: Annual bluegrass (Poa annua)

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The spring struggle with Poa annua

May 14, 2026 By
Spring’s first green-up also marks the start of the battle against Poa annua on golf courses. ...

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(Photo: Mccurdy et al.)

Annual bluegrass management: What 20 years of research now shows

May 14, 2026 By
Annual bluegrass emerges as turf’s most persistent weed, and more than 20 years of research now points to a long-term, systems-based approach for sustainable control. ...

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Photo:ioanna_alexa/ iStock / Getty Images Plus/ Getty Images

Reflections on managing annual bluegrass

May 13, 2026 By
A recap of new research on why annual bluegrass is so persistent, and why managing Poa annua takes a systems-based, long-term approach. ...

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Karl Danneberger, Ph.D

Diagnosis and spread of brown ring patch

April 27, 2026 By
Read about how and why brown ring patch develops in Poa annua during spring. ...

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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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Photo: SePRO

SePRO offering a free pre-emergent weed control webinar for golf superintendents April 15

April 10, 2026 By
This webinar will focus on building programs using StriCore, including tank mix strategies, application timing, rates and real-world use case scenarios. ...

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