Best Syngenta Tenacity Weed Killer for Lawns in 2025
Updated on July 2025
#1
Recommended
12% Off
Free Shipping
- Prevents weed growth at the seedling stage, allowing new grass to grow healthily.
- Tenacity is effective for both pre-emergent and post-emergent weed control in turfgrasses.
- Weeds absorb Tenacity upon emergence from the soil when used as a pre-emergent treatment.
- Targets a variety of weeds including Barnyardgrass, Chickweed, Crabgrass, Dandelion, and more.
- Shelf life is 5-8 years when stored properly, as indicated by the manufacture date on the bottle.
Read More
- Prevents weed growth at the seedling stage, allowing new grass to grow healthily.
- Tenacity is effective for both pre-emergent and post-emergent weed control in turfgrasses.
- Weeds absorb Tenacity upon emergence from the soil when used as a pre-emergent treatment.
- Targets a variety of weeds including Barnyardgrass, Chickweed, Crabgrass, Dandelion, and more.
Read More
#2
Value for Money
21% Off
Free Shipping
- Controls 46 varieties of broadleaf weeds and grasses, including crabgrass, clover, and dandelion.
- Can be applied during seeding, including bare ground and overseeding of established lawns.
- Targets both pre-emergent and post-emergent weeds, preserving desired grass.
- Easy-to-use measuring system allows for precise application with no need for syringes.
- Established brand with over 20 years of use; highly trusted by lawn care professionals.
Read More
- Controls 46 varieties of broadleaf weeds and grasses, including crabgrass, clover, and dandelion.
- Can be applied during seeding, including bare ground and overseeding of established lawns.
- Targets both pre-emergent and post-emergent weeds, preserving desired grass.
- Easy-to-use measuring system allows for precise application with no need for syringes.
- Established brand with over 20 years of use; highly trusted by lawn care professionals.
#3
Free Shipping
- Effective herbicide for controlling 46 weed species, including crabgrass and dandelion.
- Can be safely applied during seeding or overseeding of lawns.
- Targets both new and existing weeds while protecting desired grass.
- Simply measure and pour with an easy-to-use dispensing bottle.
- Established brand known for its active ingredient mesotrione, trusted by lawn care professionals.
Read More
- Effective herbicide for controlling 46 weed species, including crabgrass and dandelion.
- Can be safely applied during seeding or overseeding of lawns.
- Targets both new and existing weeds while protecting desired grass.
- Simply measure and pour with an easy-to-use dispensing bottle.
- Established brand known for its active ingredient mesotrione, trusted by lawn care professionals.
#4
11% Off
Free Shipping
- Syngenta Tenacity Herbicide is designed for both pre-emergent and post-emergent weed control.
- The product comes in an 8-ounce liquid formulation.
- It is suitable for application on lawns and turf grasses.
- The active ingredient in the herbicide is Mesotrione.
- Syngenta Tenacity targets various types of weeds effectively.
- It helps maintain the health and appearance of turf grasses.
Read More
- Syngenta Tenacity Herbicide is designed for both pre-emergent and post-emergent weed control.
- The product comes in an 8-ounce liquid formulation.
- It is suitable for application on lawns and turf grasses.
- The active ingredient in the herbicide is Mesotrione.
- Syngenta Tenacity targets various types of weeds effectively.
- It helps maintain the health and appearance of turf grasses.
#5
15% Off
Free Shipping
- Contains 40% mesotrione, the active ingredient for effective weed control in both newly seeded and established turf.
- Allows flexible timing for both pre- and post-emergent applications, broadening the window for weed prevention and control.
- Effectively targets a wide range of broadleaf and grassy weeds, including crabgrass, ground ivy, clover, oxalis, and dandelion.
- Approved for use on newly seeded Kentucky bluegrass, tall fescue, perennial ryegrass, and centipedegrass, helping to prevent weed competition.
- Includes a pre-marked syringe for easy measurement of the correct application rate, activated by water after application.
Read More
- Contains 40% mesotrione, the active ingredient for effective weed control in both newly seeded and established turf.
- Allows flexible timing for both pre- and post-emergent applications, broadening the window for weed prevention and control.
- Effectively targets a wide range of broadleaf and grassy weeds, including crabgrass, ground ivy, clover, oxalis, and dandelion.
Read More
#6
13% Off
Free Shipping
- Mesotrione is a selective herbicide that begins to act quickly after application, achieving full effectiveness in 2-3 weeks; activation requires watering if there is no rain within 10 days.
- It effectively targets a variety of 46 broadleaf weeds and grasses such as Barnyard grass, Crabgrass, and Dandelion.
- Compatible with several grass types, including Kentucky Bluegrass and St. Augustine Grass (sod only); avoid use on certain types like Bentgrass and Zoysiagrass.
- The herbicide disrupts photosynthesis in target plants, providing both pre-emergent control against crabgrass and broadleaf weed elimination while supporting healthy turfgrass growth.
Read More
- Mesotrione is a selective herbicide that begins to act quickly after application, achieving full effectiveness in 2-3 weeks; activation requires watering if there is no rain within 10 days.
- It effectively targets a variety of 46 broadleaf weeds and grasses such as Barnyard grass, Crabgrass, and Dandelion.
- Compatible with several grass types, including Kentucky Bluegrass and St. Augustine Grass (sod only); avoid use on certain types like Bentgrass and Zoysiagrass.
Read More
#7
Free Shipping
- Contains 40% mesotrione, the active ingredient used for effective weed control in both newly seeded areas and established turf.
- Allows for flexible application with pre- and post-emergent weed control, broadening the application window.
- Effectively controls a variety of broadleaf and grassy weeds, including crabgrass, clover, and dandelion.
- Suitable for newly seeded Kentucky bluegrass, tall fescue, perennial ryegrass, and centipedegrass, helping to prevent weed competition and support grass growth.
- Not available for purchase in Alaska, Hawaii, or Vermont, and is subject to label instructions.
Read More
- Contains 40% mesotrione, the active ingredient used for effective weed control in both newly seeded areas and established turf.
- Allows for flexible application with pre- and post-emergent weed control, broadening the application window.
- Effectively controls a variety of broadleaf and grassy weeds, including crabgrass, clover, and dandelion.
Read More
#8
Free Shipping
- Mesotrione is an effective herbicide that begins to work immediately but requires 2-3 weeks for complete weed eradication. Ensure adequate activation through at least 0.15 inches of water if rainfall doesn't occur within 10 days.
- This herbicide effectively targets 46 different broadleaf and grassy weed species, including Barnyard grass, Chickweed, Clover, Crabgrass, and Dandelion.
- Compatible with several grass types such as Kentucky Bluegrass, Tall Fescue, and St. Augustine Grass (only sod). Not suitable for certain grasses like Bentgrass and Zoysiagrass, and can be applied to dormant Bermudagrass for weed control.
- Mesotrione works by disrupting photosynthesis in weeds, moving through the plant via its roots and leaves, helping to prevent crabgrass germination and eliminating broadleaf weeds while promoting cool-season turfgrass health.
Read More
- Mesotrione is an effective herbicide that begins to work immediately but requires 2-3 weeks for complete weed eradication. Ensure adequate activation through at least 0.15 inches of water if rainfall doesn't occur within 10 days.
- This herbicide effectively targets 46 different broadleaf and grassy weed species, including Barnyard grass, Chickweed, Clover, Crabgrass, and Dandelion.
Read More
#9
8% Off
Free Shipping
- Contains the same active ingredient as a leading weed control product, ensuring effective results against various weeds such as dandelion, crabgrass, and clover.
- Includes a reliable 1-gallon HD101 pump sprayer designed for comfort and ease of use with gloved hands.
- Designed to effectively eliminate tough broadleaf weeds while protecting your lawn's health, suitable for goosegrass, ground ivy, and more.
- Functions as both a pre-emergent weed preventer and post-emergent herbicide, offering comprehensive weed control throughout the growing season.
- Application details: for new lawns, use 5-8 oz. per acre; for post-emergence, apply 1/4 oz. per 3000 sq ft. Target young, actively growing weeds for best results.
- PetraMax, based in Carlisle, Pennsylvania, guarantees satisfaction and offers excellent customer service for inquiries.
Read More
- Contains the same active ingredient as a leading weed control product, ensuring effective results against various weeds such as dandelion, crabgrass, and clover.
- Includes a reliable 1-gallon HD101 pump sprayer designed for comfort and ease of use with gloved hands.
- Designed to effectively eliminate tough broadleaf weeds while protecting your lawn's health, suitable for goosegrass, ground ivy, and more.
Read More
#10
8% Off
Free Shipping
- Controls weed growth before germination; ineffective on already sprouted weeds.
- One application offers season-long prevention when used correctly; can be applied months prior to weed germination.
- Effective for targeted weed control throughout the growing season, suitable for various ornamental plants.
- Successfully eradicates up to 30 types of turf weeds, including summer and winter annuals, ideal for residential and landscape areas.
- Prevents weed development at the root, requiring application prior to the germination of targeted weeds.
Read More
- Controls weed growth before germination; ineffective on already sprouted weeds.
- One application offers season-long prevention when used correctly; can be applied months prior to weed germination.
- Effective for targeted weed control throughout the growing season, suitable for various ornamental plants.
Read More
Spruce Weed Killer Concentrate For Sprayer
See All
Pulverize Vine Killer
See All
Weed Killer Granules Noxall
See All
