Tenacity Herbicide works by inhibiting an enzyme that is essential to chlorophyll production and photosynthesis, allowing light energy to break down the chlorophyll and, as a result, turning weeds white within five to seven days after  application. This is normal and the white color is a sign that the product is working.

Occasionally, you may see white tips on desirable turf grass, but this is a temporary symptom and these white tips will eventually be mowed off. Tenacity Herbicide by Syngenta offers pre- and post-emergent control of more than 46 broadleaf weed and grass species, including crabgrass, ground ivy, yellow foxtail, yellow nutsedge and unwanted bentgrass.

Tenacity can be used at seeding to reduce weed competition so new turf can establish faster. Tenacity is the only residential-approved herbicide that selectively removes both nimblewill and bentgrass. Plus, it controls Crabgrass, Windmill grass, Clover, Ground ivy, Goosegrass, Yellow foxtail, Yellow nutsedge, Oxalis and more.

Key Features:

• Weeds controlled include crabgrass, ground ivy, yellow foxtail, yellow nutsedge and nimblewill. It also controls unwanted bentgrass.
• Provides post-emergent control of tough-to-control weeds.
• Controls weeds at seeding reducing weed competition.
• Prevents and controls crabgrass pre or post up to four tillers
• Eliminates weeds at seeding so new grass can flourish.

*HomeandGardenSupply.com always recommends reading the entire product label before use, and following all necessary safety precautions, mixing instructions and proper application methods.