Large Patch Guarantee by Region Fall applications differ by region, while all regions follow the same protocol for spring. For all recommendations, apply in sufficient water to provide thorough coverage based on mowing height and turf density. Irrigate lightly (less than 0.1” of water) within 24 hours of each application .
Application Timing for all regions: Fall application(s): Initiate fall applications when soil temperatures are consistently below 68°F. Spring application: Initiate spring applications when turf growth resumes when soil temperatures are consistently above 55-60˚F or >50% green-up).
California
Southern Region (OK, TX, TN, NC, SC, AR, LA, MS, AL, GA, FL, VA) Fall: Make two applications of Ascernity (1 fl oz/1000 ft. 2 ) on a 4- to 6-week interval or Posterity XT (2.25 fl oz/1000 ft. 2 ) on a 4-week interval Spring: Make one application of Ascernity (1 fl oz/1000 ft. 2 ) or Posterity XT (2.25 fl oz/1000 ft. 2 )
Midwest Region (KS, MO, S. IN, S. IL, KY)
Scan this QR code to sign up for Large Patch soil Temperate Alerts.
Fall: Make two applications of Ascernity (1 fl oz/1000 ft. 2 ) on a 4- to 6-week interval
Fall: Make one application of Ascernity (1 fl oz/1000 ft. 2 ) Spring: Make one application of Ascernity (1 fl oz/1000 ft. 2 )
or Headway ® fungicide (1.5 fl. oz./1,000 ft. 2 ) on a 4-week interval
Spring: Make one application of Ascernity (1 fl oz/1000 ft. 2 ) or Headway (1.5 fl. oz./1,000 ft. 2 )
Large Patch Control in ‘Zeon’ Zoysiagrass (Kerns, NC State University)
% Large Patch on Nov 2, 2020
35
2020-2021 Large Patch Control Summary Zoysiagrass and Seashore Paspalum
30
25
20
15
10
5
0
ProStar 70 WG 2.2 oz/1000 ft 2 4-week interval
ProStar 70 WG 2.2 oz/1000 ft 2 6-week interval
Ascernity 6 week Ascernity 1 fl oz/1000 ft 2 6-week interval
Ascernity 4 week Ascernity 1 fl oz/1000 ft 2 4-week interval
Untreated
4-week treatments applied on Sept 23 and Oct 21. 6-week treatments applied on Sept 23 and Nov 4, 2020. All treatments received a spring application on Apr 7, 2021. 4-week treatments applied on Sept 23 and Oct 21. 6-week treatments applied on Sept 23 and Nov 4, 2020. All treatments received a spring application on Apr 7, 2021. Performance assessments are based upon results or analysis of public information, field observations and/or internal Syngenta evaluations. Trials reflect treatment rates commonly recommended in the marketplace.
For complete details, please see product labels.
Terms and Conditions: Qualifying Products include Ascernity, Headway and Posterity XT. Purchases of qualifying products must be made between July 1, 2023 and December 31, 2023 (“Qualifying Period”) from an authorized Syngenta Agent or Retailer. User must follow prescribed guidelines herein regarding application rates and timing for the user’s region in order to qualify. Lack of control of large patch must be confirmed by the Syngenta territory manager based on local University turf disease diagnostics. All claims must be filed by May 15, 2024 with a Syngenta Territory Manager to investigate and, if warranted, supply Syngenta product for rescue treatment. If Syngenta determines that additional treatment is needed, Syngenta will recommend and provide the appropriate product. Breakthrough is defined as less than 90% large patch control as compared to untreated areas of similar turf density, turf type, and environment. Syngenta retains the right to audit purchase records in assessing assurance claims. Syngenta will pay for products only and will not pay for the application. The fall application guarantee is offered in the regions noted above in the following states only: AL, AR, CA, FL, GA, IL, IN, KS, KY, LA, MO, MS, NC, OK, SC, TN, TX, and VA.
© 2023 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. Ascernity ® , GreenTrust ® , Headway ® , Posterity ® , the Alliance Frame, the Purpose Icon and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are the property of their respective third-party owners. Syngenta Customer Center: 1-800-SYNGENT(A) (796-4368). TD SYN202304v5 07/23 LGC 9373A
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