Tag: Annual bluegrass (Poa annua)

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

The Turf Doc: A case of ‘What’s that?’ 

January 8, 2026 By
Two abnormalities that occur that trigger a response like “What’s that?” are annual bluegrass etiolation — or mad tiller disease — and white leaf.  ...

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

The Turf Doc: An annual bluegrass summer

June 28, 2025 By
Annual bluegrass shifts in late spring from heavy seed production to a weakened root system, making summer management with proper watering, aeration, and disease control crucial for healthy turf ...

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Figure 1.

Evaluating PGR reapplication on annual bluegrass putting greens

Trends suggest reapplication intervals for PGR varied by month of application. ...

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