News From Turf Pathology

US map showing 2025 turfgrass sample origins; 71% SE, 41% NC, 13% SW; Top5 NC, FL, SC, TX, CA
2025 Turf Diagnostics Lab Review

January 28, 2026

NC State three-panel: turf "Cold Injury/Chloroplast Masking"; closeup "Purple Leaf Tip"; "Leaf spot"
Purple Bermudagrass Greens? Cold Weather Likely to Blame

December 1, 2025

Grass field with large irregular brown and bare patches across the turf
Record Heat for Most of NC = Ugly Creeping Bentgrass and Tall Fescue

July 30, 2025

NC STATE UNIVERSITY banner; turf disease examples labeled Brown patch, Gray Leaf Spot, Pythium blight
Gray Leaf Spot Development in Tall Fescue

July 24, 2025

US map: 2024 turfgrass sample origins — 65% SE, 15% SW, 37% NC; Top 5: NC, FL, TX, CA, AL
2024 Turf Diagnostics Lab Review

February 11, 2025

Golf tee box and fairway framed by trees, mountains visible in the distance.
Sample Fees Waived for Western NC Turf Managers

September 30, 2024

Red stylized hurricane symbol: circular eye with two curved pointed spiral arms
What to Consider After a Tropical System for Turf Disease Management

August 8, 2024

Close-up of short green grass blades and turf
Yellow Spot or Bacterial Etiolation? That Is the Question.

July 30, 2024

Cardboard box labeled "Turf Diagnosis Sample Please Rush" in black marker
Turfgrass Disease Diagnosis: A Bit of Science and a Lot of Art

July 19, 2024

The chart titled "Curative Suppression of Dollar Spot with Fungicides" from NC State University displays the percentage of dollar spot per plot over time, from May 13 to May 31. It compares six treatments: Secure, Maxima, Posterity, Daconil Ultrex, Chipco
What Is a Fungicide? That Is the Question!

May 21, 2024

2023 Client Distribution bar chart: Golf 67%, Lawn 30%, Orn. Nursery 3% (% of all turf samples)
2023 Turf Diagnostics Lab Review

February 13, 2024

EPA logo and text: United States Environmental Protection Agency on blue background
Proposed Interim Decision for Chlorothalonil and Implications in Turfgrass Systems

December 20, 2023

Red turf coring tool standing upright on green turf surface
Purple Spots on Your Ultradwarf Bermudagrass Putting Greens?

December 15, 2023

Golf putting green showing multiple circular brown turf damage patches
Why Should You Love Soil Temperatures When Managing Bermudagrass Diseases?

September 12, 2023

Yellow diamond sign with gray text "CHANGES COMING!"
NC State Turf Diagnostic Lab Major Changes

June 19, 2023

Patchy brown lawn with scattered green grass and a concrete walkway visible at the top
The Blues Brothers: Warm-Season Lawns in NC

April 18, 2023

Golf green with numerous circular brown patches and a white fence in the background
Disease or Not Disease, That Is the Ultradwarf Question!

March 21, 2023

North Carolina county map with red and gray counties; title "2013-22 Creeping Bentgrass Submission Origin"
North Carolina Putting Green Samples - 10 Year Review

February 14, 2023

Map of 2022 turfgrass sample origins by US state; 44% NC, 68% SE (TN/NC/MS/AL/GA/SC/FL)
2022 Turf Diagnostics Lab Review

January 24, 2023

Aerial view of patchy grass with red survey grid marks and handwritten text "PBI" at bottom left
Review of Tall Fescue Fungicide Trials in 2022

September 7, 2022

Aerial turf plots showing patchy dead grass; title "Review of Spring Dead Spot and Large Patch Trials From 2021-22"
Review of Spring Dead Spot and Large Patch Trials From 2021-22

May 31, 2022

Man leaning into microscope under tent next to sign reading "Diagnostics Lab"
My Grass Is Sick! Now What?

May 2, 2022

Golf green with red marks and labels: 'Tebuconazole' and 'Propiconazole premix' applied late summer
Precaution Is Better Than a Cure: Spring Disease Management and Thoughts on DMI Safety

March 29, 2022

Map of USA showing 2021 turfgrass sample origins; 38% NC, 63% SE (TN/NC/MS/AL/GA/SC/FL)
2021 Turf Diagnostics Lab Review

January 24, 2022

NC STATE UNIVERSITY; left: green turf surface; right: circular turf plug half brown half green
"Winter:30" for Maladies of Turfgrass

January 10, 2022

Flagstick casting shadow on a golf green with distant cart and sand bunker
Fungicides "Not Working"? - Not So Fast!

November 3, 2021

Turf treatment grid: Secure, Maxtima, Posterity, Chipco26GT, Daconil, Sec.+Pos., Control — photos 5/10, 5/18, 5/24/2021
The Findings of a Mad Turf Pathologist

June 1, 2021

NC STATE UNIVERSITY; two golf-green photos showing turf discoloration; text "Photos from Samples Submitted Early-Mid March"
Yuck! TARR on Your Heels?

March 24, 2021

North Carolina map with red highlighted counties; "Tall Fescue Sample Submissions"; 2011–2020; n=215
10-Year NC Landscape Turf Sample Review

January 28, 2021

Map of North Carolina counties colored, titled "Creeping Bent PG Sample Submissions", 2011–2020, n=808
10-Year NC County Golf Sample Review

January 28, 2021

US map showing 2020 turfgrass sample origins; 45% NC, 74% SE*
2020 Diagnostics Lab Review

January 25, 2021

Three men inspecting turf beside a large white tarp on a grassy field
Keep Old Man Winter From Hurting Bermudagrass Putting Greens

November 16, 2020

Zoysiagrass
Review of Turf Pathology Fungicide Trials From 2020

October 13, 2020

Spring dead spot symptoms in a bermudagrass landscape setting.
Time to Treat for Spring Dead Spot & Large Patch

September 23, 2020

Single grass blade held between fingers with brown circular leaf lesions
Struggling With Gray Leaf Spot in Tall Fescue?

September 9, 2020

Patchy golf green showing brown and green turf discoloration, golf cart at top edge
Does Pythium Root Dysfunction Equal Pythium Root Rot?

August 4, 2020

Grid of petri dishes with fungal colonies; rows labeled Gg1–Mc2, columns 50°F–95°F
Too Early for Take-All Root Rot Apps?

July 20, 2020

Front yard lawn with multiple circular dead patches and a young tree near a house
Cool Spring Weather Extends Large Patch Injury on Warm-Season Turf

May 27, 2020

Front yard with sidewalk, green lawn showing patchy brown spots and a planted flowerbed
Ascochyta Leaf Blight – Uncommon & Sometimes Devastating

April 16, 2020

Client Distribution chart image
2019 Diagnostics Lab Review

January 22, 2020

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