{"title":"Bentgrass Control in Lawns","description":"\u003cp\u003eCreeping bentgrass is desirable on golf greens but can form pale, soft, thatchy patches in higher-cut lawns. It spreads by stolons and often becomes conspicuous during humid summer weather.\u003c\/p\u003e\n\u003ch2\u003eHow to Identify Bentgrass\u003c\/h2\u003e\n\u003cp\u003eFine blades have rolled vernation and a long membranous ligule. Stolons creep across the soil surface and create dense mats that feel different underfoot from bluegrass or fescue.\u003c\/p\u003e\n\u003ch2\u003eWhy It Appears in Turf\u003c\/h2\u003e\n\u003cp\u003eFrequent light irrigation, low mowing, acidic or poorly drained soil, and movement from golf or seed sources favor spread.\u003c\/p\u003e\n\u003ch2\u003eMake the Site Less Favorable\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain the recommended mowing height and avoid scalping.\u003c\/li\u003e\n\u003cli\u003eCorrect irrigation, drainage, compaction, fertility, or shade problems that thin desirable turf.\u003c\/li\u003e\n\u003cli\u003eRepair bare areas and use adapted turf cultivars to close openings where seedlings establish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat University Research and Extension Guidance Says\u003c\/h2\u003e\n\u003cp\u003eUniversity turf guidance recognizes selective suppression in some cool-season lawns, but multiple applications and careful attention to desirable species are required. Thick mats or mixed infestations may be more predictably corrected by spot renovation.\u003c\/p\u003e\n\u003ch2\u003eChoosing a Turf Herbicide\u003c\/h2\u003e\n\u003cp\u003ePerennial weeds often regrow from stolons, rhizomes, tubers, bulbs, or deep roots. Select a product labeled for the desirable turf and target weed, treat actively growing plants, and plan the complete sequence of repeat applications or renovation steps allowed by the label.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eResearch and label note:\u003c\/strong\u003e University research may discuss treatments or timings that are not permitted on every turf species or use site. Research evidence does not expand a product label. Confirm the desirable turf species, use site, target weed, application timing, rate, adjuvant directions, and reseeding restrictions on the current label before use.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eUniversity sources:\u003c\/strong\u003e \u003ca href=\"https:\/\/extension.uga.edu\/publications\/detail.cfm?number=B978\"\u003eUniversity of Georgia Extension: Weed Control in Home Lawns\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e","products":[{"product_id":"tenacity-herbicide","title":"Tenacity Herbicide","description":"\u003ch2\u003eTenacity Herbicide\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is a professional selective turf herbicide powered by mesotrione for pre-emergent and post-emergent control of more than 46 broadleaf and grassy weeds in cool-season turf. It is the only turf herbicide labeled for use at or near seeding while providing residual weed control, making it an outstanding choice for new lawn establishment, overseeding, and turf renovation.\u003c\/p\u003e\n\u003cp\u003eTenacity controls difficult weeds including crabgrass, creeping bentgrass, nimblewill, yellow nutsedge, clover, ground ivy, and many additional annual and perennial weeds. Its unique Group 27 HPPD mode of action provides excellent resistance-management value while allowing applications before, during, or after seeding on labeled turf species. For post-emergence applications, a non-ionic surfactant is required. We recommend \u003cstrong\u003eProSurf 90 Non-Ionic Surfactant\u003c\/strong\u003e for optimum performance.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Controls over 46 broadleaf and grassy weeds with both pre- and post-emergence activity.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Can be applied at or near seeding, making it ideal for new lawn establishment and overseeding.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Excellent control of difficult weeds including creeping bentgrass, nimblewill, crabgrass, and yellow nutsedge.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Provides residual soil activity to reduce future weed germination.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Systemic HPPD inhibitor (Group 27) with a unique mode of action for resistance-management programs.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Safe for use on labeled established and newly seeded cool-season turfgrass species when applied according to label directions.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Requires a non-ionic surfactant for post-emergence applications—ProSurf 90 is recommended for maximum weed control.\u003c\/p\u003e\n\u003ch2\u003eLabeled Use Sites\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is labeled for use on residential and commercial lawns, golf courses (except putting greens), athletic fields, parks, cemeteries, airports, sod farms, and other ornamental turf areas. It may be applied before seeding, at seeding, or after establishment on labeled turfgrass species including Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescues, buffalograss, centipedegrass, and St. Augustinegrass sod. It is especially valuable for turf renovation and overseeding projects where traditional herbicides cannot be used.\u003c\/p\u003e\n\u003ch2\u003eTarget Weeds\u003c\/h2\u003e\n\u003cp\u003eTenacity provides selective control or suppression of more than 46 grassy and broadleaf weeds including creeping bentgrass, nimblewill, large crabgrass, smooth crabgrass, southern crabgrass, goosegrass, barnyardgrass, yellow foxtail, yellow nutsedge, annual bluegrass (suppression), white clover, hop clover, chickweed, henbit, ground ivy, oxalis, dandelion, buckhorn plantain, carpetweed, purslane, lambsquarters, pigweed, smartweed, wild carrot, wild violet, Canada thistle, sowthistle, speedwell, marestail, lawn burweed, healall, windmillgrass, Florida betony, Florida pusley, and numerous additional labeled weeds.\u003c\/p\u003e\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cp\u003eTenacity may be applied as both a pre-emergent and post-emergent herbicide. Post-emergence applications require the addition of a non-ionic surfactant for optimum control, and repeat applications at 2–3 week intervals may be needed for difficult weeds. Temporary whitening of susceptible weeds—and occasionally desirable turf—is a normal symptom of the herbicide's mode of action and is typically temporary. For best pre-emergent performance, rainfall or irrigation is recommended if rainfall has not occurred within 10 days after application.\u003c\/p\u003e\n\u003ch2\u003eProduct Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eActive Ingredient:\u003c\/strong\u003e Mesotrione 40.0%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHRAC Group:\u003c\/strong\u003e Group 27\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChemical Family:\u003c\/strong\u003e Triketone (HPPD Inhibitor)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMode of Action:\u003c\/strong\u003e HPPD (4-Hydroxyphenylpyruvate Dioxygenase) Inhibitor\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFormulation:\u003c\/strong\u003e Suspension Concentrate (SC)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Word:\u003c\/strong\u003e Caution\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEPA Registration Number:\u003c\/strong\u003e 100-1267\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Syngenta Crop Protection, LLC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Tenacity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Surfactant:\u003c\/strong\u003e ProSurf 90 Non-Ionic Surfactant (recommended for all post-emergence applications).\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":45346711797898,"sku":"tenacity","price":5.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/9331\/8282\/files\/tenacity-herbicide-grouped-770.png?v=1785528245"},{"product_id":"tenacity-herbicide-8-ounces","title":"Tenacity Herbicide bottle (8 oz)","description":"\u003ch2\u003eTenacity Herbicide\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is a professional selective turf herbicide powered by mesotrione for pre-emergent and post-emergent control of more than 46 broadleaf and grassy weeds in cool-season turf. It is the only turf herbicide labeled for use at or near seeding while providing residual weed control, making it an outstanding choice for new lawn establishment, overseeding, and turf renovation.\u003c\/p\u003e\n\u003cp\u003eTenacity controls difficult weeds including crabgrass, creeping bentgrass, nimblewill, yellow nutsedge, clover, ground ivy, and many additional annual and perennial weeds. Its unique Group 27 HPPD mode of action provides excellent resistance-management value while allowing applications before, during, or after seeding on labeled turf species. For post-emergence applications, a non-ionic surfactant is required. We recommend \u003cstrong\u003eProSurf 90 Non-Ionic Surfactant\u003c\/strong\u003e for optimum performance.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Controls over 46 broadleaf and grassy weeds with both pre- and post-emergence activity.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Can be applied at or near seeding, making it ideal for new lawn establishment and overseeding.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Excellent control of difficult weeds including creeping bentgrass, nimblewill, crabgrass, and yellow nutsedge.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Provides residual soil activity to reduce future weed germination.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Systemic HPPD inhibitor (Group 27) with a unique mode of action for resistance-management programs.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Safe for use on labeled established and newly seeded cool-season turfgrass species when applied according to label directions.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Requires a non-ionic surfactant for post-emergence applications—ProSurf 90 is recommended for maximum weed control.\u003c\/p\u003e\n\u003ch2\u003eLabeled Use Sites\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is labeled for use on residential and commercial lawns, golf courses (except putting greens), athletic fields, parks, cemeteries, airports, sod farms, and other ornamental turf areas. It may be applied before seeding, at seeding, or after establishment on labeled turfgrass species including Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescues, buffalograss, centipedegrass, and St. Augustinegrass sod. It is especially valuable for turf renovation and overseeding projects where traditional herbicides cannot be used.\u003c\/p\u003e\n\u003ch2\u003eTarget Weeds\u003c\/h2\u003e\n\u003cp\u003eTenacity provides selective control or suppression of more than 46 grassy and broadleaf weeds including creeping bentgrass, nimblewill, large crabgrass, smooth crabgrass, southern crabgrass, goosegrass, barnyardgrass, yellow foxtail, yellow nutsedge, annual bluegrass (suppression), white clover, hop clover, chickweed, henbit, ground ivy, oxalis, dandelion, buckhorn plantain, carpetweed, purslane, lambsquarters, pigweed, smartweed, wild carrot, wild violet, Canada thistle, sowthistle, speedwell, marestail, lawn burweed, healall, windmillgrass, Florida betony, Florida pusley, and numerous additional labeled weeds.\u003c\/p\u003e\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cp\u003eTenacity may be applied as both a pre-emergent and post-emergent herbicide. Post-emergence applications require the addition of a non-ionic surfactant for optimum control, and repeat applications at 2–3 week intervals may be needed for difficult weeds. Temporary whitening of susceptible weeds—and occasionally desirable turf—is a normal symptom of the herbicide's mode of action and is typically temporary. For best pre-emergent performance, rainfall or irrigation is recommended if rainfall has not occurred within 10 days after application.\u003c\/p\u003e\n\u003ch2\u003eProduct Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eActive Ingredient:\u003c\/strong\u003e Mesotrione 40.0%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHRAC Group:\u003c\/strong\u003e Group 27\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChemical Family:\u003c\/strong\u003e Triketone (HPPD Inhibitor)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMode of Action:\u003c\/strong\u003e HPPD (4-Hydroxyphenylpyruvate Dioxygenase) Inhibitor\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFormulation:\u003c\/strong\u003e Suspension Concentrate (SC)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Word:\u003c\/strong\u003e Caution\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEPA Registration Number:\u003c\/strong\u003e 100-1267\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Syngenta Crop Protection, LLC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Tenacity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Surfactant:\u003c\/strong\u003e ProSurf 90 Non-Ionic Surfactant (recommended for all post-emergence applications).\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":45346791325834,"sku":"tenacity8","price":50.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/9331\/8282\/files\/tenacity-herbicide-bottle-8-oz-simple-775.jpg?v=1785528245"},{"product_id":"tenacity-herbicide-gallon","title":"Tenacity Herbicide gallon (128 oz)","description":"\u003ch2\u003eTenacity Herbicide\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is a professional selective turf herbicide powered by mesotrione for pre-emergent and post-emergent control of more than 46 broadleaf and grassy weeds in cool-season turf. It is the only turf herbicide labeled for use at or near seeding while providing residual weed control, making it an outstanding choice for new lawn establishment, overseeding, and turf renovation.\u003c\/p\u003e\n\u003cp\u003eTenacity controls difficult weeds including crabgrass, creeping bentgrass, nimblewill, yellow nutsedge, clover, ground ivy, and many additional annual and perennial weeds. Its unique Group 27 HPPD mode of action provides excellent resistance-management value while allowing applications before, during, or after seeding on labeled turf species. For post-emergence applications, a non-ionic surfactant is required. We recommend \u003cstrong\u003eProSurf 90 Non-Ionic Surfactant\u003c\/strong\u003e for optimum performance.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Controls over 46 broadleaf and grassy weeds with both pre- and post-emergence activity.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Can be applied at or near seeding, making it ideal for new lawn establishment and overseeding.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Excellent control of difficult weeds including creeping bentgrass, nimblewill, crabgrass, and yellow nutsedge.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Provides residual soil activity to reduce future weed germination.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Systemic HPPD inhibitor (Group 27) with a unique mode of action for resistance-management programs.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Safe for use on labeled established and newly seeded cool-season turfgrass species when applied according to label directions.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #255e2f; font-size: 18px;\"\u003e✔\u003c\/span\u003e Requires a non-ionic surfactant for post-emergence applications—ProSurf 90 is recommended for maximum weed control.\u003c\/p\u003e\n\u003ch2\u003eLabeled Use Sites\u003c\/h2\u003e\n\u003cp\u003eTenacity Herbicide is labeled for use on residential and commercial lawns, golf courses (except putting greens), athletic fields, parks, cemeteries, airports, sod farms, and other ornamental turf areas. It may be applied before seeding, at seeding, or after establishment on labeled turfgrass species including Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescues, buffalograss, centipedegrass, and St. Augustinegrass sod. It is especially valuable for turf renovation and overseeding projects where traditional herbicides cannot be used.\u003c\/p\u003e\n\u003ch2\u003eTarget Weeds\u003c\/h2\u003e\n\u003cp\u003eTenacity provides selective control or suppression of more than 46 grassy and broadleaf weeds including creeping bentgrass, nimblewill, large crabgrass, smooth crabgrass, southern crabgrass, goosegrass, barnyardgrass, yellow foxtail, yellow nutsedge, annual bluegrass (suppression), white clover, hop clover, chickweed, henbit, ground ivy, oxalis, dandelion, buckhorn plantain, carpetweed, purslane, lambsquarters, pigweed, smartweed, wild carrot, wild violet, Canada thistle, sowthistle, speedwell, marestail, lawn burweed, healall, windmillgrass, Florida betony, Florida pusley, and numerous additional labeled weeds.\u003c\/p\u003e\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cp\u003eTenacity may be applied as both a pre-emergent and post-emergent herbicide. Post-emergence applications require the addition of a non-ionic surfactant for optimum control, and repeat applications at 2–3 week intervals may be needed for difficult weeds. Temporary whitening of susceptible weeds—and occasionally desirable turf—is a normal symptom of the herbicide's mode of action and is typically temporary. For best pre-emergent performance, rainfall or irrigation is recommended if rainfall has not occurred within 10 days after application.\u003c\/p\u003e\n\u003ch2\u003eProduct Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eActive Ingredient:\u003c\/strong\u003e Mesotrione 40.0%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHRAC Group:\u003c\/strong\u003e Group 27\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChemical Family:\u003c\/strong\u003e Triketone (HPPD Inhibitor)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMode of Action:\u003c\/strong\u003e HPPD (4-Hydroxyphenylpyruvate Dioxygenase) Inhibitor\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFormulation:\u003c\/strong\u003e Suspension Concentrate (SC)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Word:\u003c\/strong\u003e Caution\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEPA Registration Number:\u003c\/strong\u003e 100-1267\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Syngenta Crop Protection, LLC\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Tenacity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Surfactant:\u003c\/strong\u003e ProSurf 90 Non-Ionic Surfactant (recommended for all post-emergence applications).\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":45346792734858,"sku":"tenacity1a","price":961.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/9331\/8282\/files\/tenacity-herbicide-gallon-128-oz-simple-225.jpg?v=1785528247"}],"url":"https:\/\/www.intermountainturf.com\/collections\/bentgrass-control-turf.oembed","provider":"Intermountain Turf Supply","version":"1.0","type":"link"}