2026 – Greens - Poa annua/ Bentgrass – West – 14 day – E. OR, E. WA, UT, WY, ID, MT, NV
App. #
Estimated date
Product Description
Rate per 1000 ft²
FRAC Codes
Target Pathogens
April 30
Instrata ® fungicide
5.0 fl oz
3, 12, M5
Spring disease clean-up
1
May 14
Briskway ® fungicide Appear ® II fungicide *Primo Maxx ® plant growth regulator Daconil ® Action ™ fungicide Velista ® fungicide Primo Maxx
0.7 fl oz 6.0 fl oz
3, 11 33
Anthracnose, Dollar Spot, Yellow Patch, Brown Ring Patch
2
0.1 fl oz
May 28
3.5 fl oz 0.5 fl oz 0.1 fl oz 1 fl oz 6.0 fl oz 0.1 fl oz 0.9 fl oz 0.1 fl oz 0.5 fl oz 6.0 fl oz 0.1 fl oz 3.5 fl oz 0.5 fl oz 0.1 fl oz 0.7 fl oz 1.0 fl oz 6.0 fl oz 0.1 fl oz 0.4 fl oz 1.0 fl oz 0.1 fl oz 0.5 fl oz 6.0 fl oz 0.1 fl oz
M5, P1 7
Anthracnose, Dollar Spot, Yellow Patch, Brown Ring Patch
3
June 11
Ascernity ® fungicide Appear II Primo Maxx Briskway fungicide Primo Maxx
3, 7 33
Anthracnose, Dollar Spot, Yellow Patch, Brown Ring Patch
4
June 25
3, 11
Anthracnose, Dollar Spot, Brown Ring Patch Anthracnose, Rhizoctonia, Dollar Spot, Pythium spp.
5
July 9
Velista Appear II Primo Maxx
7 33
6
July 23
Daconil Action Secure ® Action fungicide Primo Maxx Briskway Subdue Maxx ® fungicide Appear II Primo Maxx Heritage ® Action fungicide Medallion ® SC fungicide Primo Maxx
M5, P1 29, P1
Anthracnose, Rhizoctonia
7
August 6
Anthracnose, Pythium spp., Rhizoctonia
3, 11 4 33
8
August 20
11, P1 12
Anthracnose, Dollar Spot, Rhizoctonia
9
September 3
Velista Appear II Primo Maxx
7 33
Anthracnose, Dollar Spot, Pythium spp.
10
September 17
Ascernity
1 fl oz
3, 7
Anthracnose, Dollar Spot, Microdochium Patch
11
October 1
Secure Action Appear II
0.5 fl oz 6.0 fl oz 11 fl oz
29, P1 33
Microdochium Patch
12
13
I nstrata
Nov 1 –prior to snow cover
3, 12, M5
Snow Mold
* = Use Trimmit ® 2SC plant growth regulator or combinations of Primo Maxx with Trimmit 2SC if your goal is to reduce Poa annua
Advisory : Turf parasitic nematodes can be a serious pest of putting greens. If your greens are not responding to normal maintenance practices, it may be beneficial to send soil samples to a qualified lab for nematode analysis. To control nematodes, apply Divanem® nematicide at 1.2 oz per 1000 sq. ft., for up to 4 applications. Apply with enough water and a soil wetting agent to move Divanem into root zone. See label for specific instructions.
Note: The amount of chlorothalonil contained in this program is equal to 21 lbs active ingredient per acre. The seasonal limit for greens is 73 lbs active ingredient per acre.
Recommendations in this spray program are based on past knowledge and should only be used as a template for building individual spray programs. Spray programs should be altered if environmental conditions dictate.
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. Divanem is a Restricted Use Pesticide. Syngenta supports a FIFRA Section 2(ee) recommendation for Velista fungicide to control summer patch, brown ring patch, fairy ring, leaf and sheath spot on all turf types. Please see section 2(ee) recommendation to confirm that the recommendation is applicable in your state. The Section 2(ee) recommendation for Velista should be in possession of the user at the time of application. The trademarks or service marks displayed or otherwise used herein are the property of a Syngenta Group Company.
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