May! : See You Later Alligator (April), Nada on Diagnostics, Temperature Timings, and Divot Study DATA

Image 1. April ends. Tulips just beginning their bloom while a Amelanchier (aka serviceberry or juneberry, etc.) is on full display in the background at Cog Hill Golf & Country Club, Lemont, Illinois. Settle, Apr 28, 2022

Weather Summary (April week 4) by Shehbaz Singh, MS

Figure 1. Current Chicago air temperatures (blue bars) versus normal range (brown band) in April, 2022.
Figure 2. Spring rainfall in Chicago (green line) versus normal (brown line). April ended normal.

Diagnostics — Nada

Temperature Timings for Fungicides

Image 1. Monitoring soil temperatures in the spring is needed to correctly time initial preventative fungicide applications. I saw a familiar slide when we attended a presentation this week. The topic was on turfgrass fungicides presented by Dr. Paul Giordano for the Midwest Association of Golf Course Superintendents magcs.org at Cantigny Golf in Wheaton.
Image 2. GDDTracker at gddtracker.msu.edu is showing central Illinois (green band) is optimal for early DMI fungicide timing for dollar spot prevention. The timing for Chicago, and further north, is still too early (white).

Divot Study Data Begins

Page 1. Materials and Methods: A new divot repair study at the Bob Berry Sunshine Course in Lemont, IL.
Page 2. Data: Initial data collection one week after treatments were initiated on April 21, 2022.
Page 3a. Sod has greater number and means it has greener color/denser turf. Normalized Difference Vegetation Index (NDVI) measured using TCM 500 NDVI Turf Color Meter (Spectrum Technologies, Aurora, IL). No statistical analysis performed; graph represents trends only.
Page 3b. Sand alone with lowest percent soil moisture. Soil moisture at 1.5 inch depth measured using FieldScout TDR 300 Meter (Spectrum Technologies, Aurora, IL). No statistical analysis performed; graph represents trends only.

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Dedicated researchers and turf pathologists working for golf course superintendents in the Chicago area.

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CDGATurfgrassProgram

CDGATurfgrassProgram

Dedicated researchers and turf pathologists working for golf course superintendents in the Chicago area.

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