We would like to apologize for the lack of weed prevention you experienced with the Turf Builder with Halts Crabgrass Preventer. Because we want you to have a positive experience with our products, I would like to offer a few tips for future use. It is important to apply your product at the appropriate time. In order for the preventer to be effective, you'll want to apply around the third mowing of your lawn in the spring and before temperatures reach 80 degrees on a constant basis. Please be aware that this product does not kill existing weeds, but prevents the weeds listed on the label. Turf Builder with Halts has a residual of 3-4 months. If you begin to see crabgrass towards late summer, you may want to consider making a second application 6-8 weeks after the initial application to extend the control. 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 contact us to see what we can do for you. You may visit our contact page by clicking on the following link http://tinyurl.com/7ag7a3n

We're sorry to read about your disappointment with Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food and appreciate your feedback. Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food prevents crabgrass and a few other grassy weeds. It does not kill mature crabgrass or other existing weeds. It does not prevent dandelions or other broadleaf weeds. Timing of application is important. To control crabgrass and other listed spring germinating weeds, product should be applied in early Spring before the 3rd or 4th mowing. Before temperatures are regularly in the 80's. Before dandelions reach white "puffball" stage. To control listed fall/winter germinating weeds (Poa Annua, Moss, Chickweed, oxalis) product needs to be applied in early fall. 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 888-270-3714 if we can further assist.