Harrell's 2026 Agronomic Resource Guide - TEST

2026 – Fairways/Tees – Creeping bentgrass/Poa annua – Midwest – 14 day Rate per 1000 ft²

App. # Estimated Date Product Description

FRAC/IRAC Codes

Target Pathogens/Comments

1

April 15

Posterity® XT fungicide Primo Maxx® plant growth regulator Secure® Action ™ fungicide Acelepryn® Xtra insecticide Primo Maxx Daconil® Action fungicide Posterity fungicide Primo Maxx

2.25 fl oz .25 fl oz .5 fl oz .367 fl oz .25 fl oz 2.0 fl oz 0.16 fl oz .25 fl oz .5 fl oz 2.0 fl oz .25 fl oz .5 fl oz .25 fl oz 2.0 fl oz 1.5 fl oz .25 fl oz .5 fl oz .25 fl oz .5 fl oz 2.0 fl oz 1.0 fl oz .25 fl oz .5 fl oz .25 fl oz .5 fl oz .5 fl oz 2.0 fl oz .25 fl oz .63 fl oz .25 fl oz .5 fl oz .25 fl oz 1.0 fl oz 2.0 fl oz

7, 3, 11

Spring disease clean-up, Dollar Spot, Leaf Spot Dollar Spot, Leaf Spot, White Grubs, Cutworms Anthracnose, Dollar Spot, Brown Ring Patch

2

April 29

29, P1 28, 4A

3

May 13

M5, P1 7 29, P1 M5, P1

4

May 27

Secure Action Daconil Action Primo Maxx Secure Action Primo Maxx Daconil Action Posterity XT Primo Maxx Secure Action Primo Maxx

Dollar Spot, Leaf Spot

5

June 10

29, P1

Anthracnose, Dollar Spot

6

June 24

11, P1 7, 3, 11

Anthracnose, Dollar Spot, Brown Patch Anthracnose, Dollar Spot, Brown Patch Pythium Blight Anthracnose, Dollar Spot, Brown Patch Anthracnose, Dollar Spot, Brown Patch Pythium Blight Dollar Spot, Leaf Spot

7

July 8

29, P1

optional July 22

Subdue Maxx® fungicide Daconil Action Ascernity® fungicide Primo Maxx

4

8

M5, P1 3, 7

9

August 5

Secure Action Primo Maxx Subdue Maxx Secure Action Daconil Action Primo Maxx

29 , P1

optional August 19

4

10

29, P1 M5, P1

11

September 2

Posterity Forte fungicide Primo Maxx

7, 3, 11

Dollar Spot

12

October 16

Secure Action Primo Maxx

29, P1

Dollar Spot, Leaf Spot

13

November 25

Ascernity Medallion® SC fungicide

3, 7 12

Fall disease clean-up, including snow mold

Note: The Program contains 20.8 lbs of chlorothalonil per acre.

Always consult the product label for complete use and application information . © 2025 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. The trademarks or service marks displayed or otherwise used herein are the property of a Syngenta Group Company. Secure ® is a registered trademark of Ishihara Sangyo Kaisha. Acelepryn Xtra is labeled for the control of white grubs, billbugs, black turfgrass ataenius, cutworms, annual bluegrass weevil, ants, and other nuisance pests in turfgrass. Recommendations contained in this Syngenta Agronomic Program are estimates only and should only be used in isolation for building individual programs. Syngenta does not warrant or certify the results of using the information contained herein. The seasonal chlorothalonil limits for fairways is 26 lbs active ingredient per acre and 52 lbs active ingredient per acre for tees. The Program contains 4.9 lbs of fluazinam per acre. The seasonal limit for fluazinam is 8.3 lbs active ingredient per acre. The Program contains 0.34 lbs of pydiflumetofen per acre. The seasonal limit for pydiflumetofen is 0.36 lbs active ingredient per acre. The Program contains 0.84 lbs of azoxystrobin per acre. The seasonal limit for azoxystrobin is 5.0 lbs active ingredient per acre. The Program contains 0.14 lbs of benzovinduiflupyr per acre. The seasonal limit for benzovinduiflupyr is 0.27 lbs per acre. The Program contains 0.45 lbs of difenoconazole per acre. The seasonal limit for difenoconazole is 1.29 lbs active ingredient per acre. The Program contains 0.71 lbs of fludioxonil per acre. The seasonal limit for fludioxonil is 2.0 lbs active ingredient per acre. The Program contains 0.208 lbs of thiamethoxam per acre. The seasonal limit for thiamethoxam is 0.266 lbs active ingredient per acre. Syngenta Agronomic Programs may need to be modified if environmental conditions dictate. Subdue Maxx should be applied when conditions are favorable for Pythium Blight disease. For protection against snow mold, fungicides should be applied prior to snow cover.

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