We're sorry to read about your disappointment with Ortho Nutsedge Killer For Lawns and appreciate your feedback.
Ortho Nutsedge Killer For Lawns can take 2-3 weeks for a completely kill of weeds. Environmental conditions play a role in how long it will take. The more actively the weed is growing the quicker the kill. If it rained within 2 hours of the application, the product may have been washed off the weeds. Temperatures below 60 degrees and above 90 degrees may cause weeds to be dormant. Weeds slow their growth when temperatures are above 90 degrees and will not effectively absorb the weed control
Weeds slow their growth when temperatures are below 60 degrees (including night time temps) and will not effectively absorb the weed control. The product may still work but it will take even longer. Drought stressed plant can not readily absorb the product. Make sure they are getting regular water before and within the days after the application.
We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist.