The Sedgehammer herbicide kills nutsedge without injury to listed established turfgrass, however it could harm desirable ornamentals, shrubs, and/or trees. You should not apply Sedgehammer in a way that would contact desirable ornamental plants.
According to the manufacturer, after applying Sedgehammer Herbcide it is recommended to wait 2 weeks to overseed on existing lawns and 4 weeks on bare ground lawns(dirt).
The SedgeHammer 13.5 gram box already contains a surfactant so no additional surfactant would be needed. If you are using the 1.33 oz bottle of SedgeHammer, we would recommend using Non-Ionice Surfactant for Herbicides. If using the 1.33 oz. bottle, use 0.9 g (one spoonful) in 1-2 gallons of water with 2 teaspoons of a nonionic surfactant.
Sedgehammer will only control weeds that are actively growing so it likely will not kill anyting in the winter once the plants are dormant and may only give partial control in the fall. It is best used in the warmer spring and summer months and early fall. Per the manufacturer, if you plan to plant a vegetable garden you cannot do so within 3 years of applying Sedgehammer in the same area unless you remove the soil treated with Sedgehammer and bring in fresh soil.
Once SedgeHammer has been mixed with water, it should be used or discarded within 24 hours.
SedgeHammer Herbicide would be a great choice for you to use to control nutsedge in a zoysia lawn.
Sedgehammer Herbicide kills kyllinga, purple and yellow nutsedge. It will eliminate the entire weed. You may need to do more than one application. Be sure to wait at least three weeks between applications.
You should be fine to spot treat the nutsedge using Sedgehammer as long as the lawn is not over-stressed by heat or drought or from the other herbicide being applied. Be sure to apply according to the product label.
Fertilizer can be applied at the same time as SedgeHammer Herbicide. There is no wait time. We do recommend to wait at least 2 days before application and after to mow the lawn.
Yes, Sedgehammer can be applied to Bermuda lawns for nutsedge. The 13.5 gram pack will cover about 1,000 sq ft if mixed with a gallon of water. The 1.33 oz bottle should be applied with a surfactant as the pack already includes a surfactant and will cover up to an acre of treated area.
SedgeHammer Herbicide would not harm your established junipers as it is considered a woody ornamental.
Yes, Sedgehammer Herbicide can be mixed with Atrazine. We do recommend doing a small tank mixture first to ensure there is no clumping between the two products. You will use the mixing rates for each product per gallon of water. No, the two absorbition methods do not have any affect on the products being applied together.
Sedgehammer Herbicide is not labeled to be used in pastures. The only product we currently carry for yellow nutsedge that is labeled for us in pastures is AXXE Broad Spectrum Herbicide. Please refer to the product label for complete instructions.