Large Patch Prevention Guarantee Protect warm season fairways from large patch disease with a Syngenta Large Patch Guarantee.
Large patch disease in turfgrass is most common in the fall and spring as warm season grasses are entering or leaving dormancy. Large patch is caused by the fungus Rhizoctonia solani strain AG 2-2LP. Rhizoctonia solani , while present year round in the thatch, soil, roots and rhizomes, initiates infection when day length shortens and soil temperatures drop. Conditions that favor this disease include extended wet periods, high nitrogen levels, heavy soils, and dense thatch—disease symptoms can become severe to the point of turfgrass loss in the spring following green-up. Introducing a New Perspective to Preventing Large Patch Now with Ascernity ® fungicide, the Large Patch Prevention Guarantee , along with Posterity ® XT fungicide, provides industry leading protection. Large Patch Control in ‘Zeon’ Zoysiagrass, 2020-2021 | Dr. Jim Kerns, NC State University
Untreated
ProStar ® 70WG 2.2 oz, 6 week interval
Ascernity ® , 1 fl oz, 6 week interval
Treatments applied Sept. 23, 2020, photos taken Nov 2, 2020
Here’s your Guarantee: • Follow the prescribed solution on page two of this sheet with applications in the fall followed by one spring application . • If your course is in one of the regions identified on page two of this sheet, and you receive less than 90% large patch control on your treated acreage as determined by Syngenta (“Breakthrough”), Syngenta will supply products (at no cost) for rescue treatment needed to control the remaining large patch in accordance with the terms herein. • If Breakthrough occurs, it is at the Syngenta Territory Manager’s discretion as to what product is provided for rescue treatment and whether rescue treatment application is broadcast on all acreage or spot treated on effected Breakthrough areas. • This Guarantee is limited to providing you one recovery application, up to the total acres originally treated. • Claims must be filed by May 15, 2024, with a Syngenta Territory Manager.
Warm season turfgrass varieties covered: Bermudagrass, kikuyugrass, seashore paspalum and zoysiagrass on greens, tees, fairways and roughs.
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