Since SedgeHammer + Herbicide is not safe to be applied on or near citrus trees, or any other edible plants, we would recommend contacting the mnaufacturer, Gowan at (800) 883-1844 to see how the product may have affected the tree.
SedgeHammer + Herbicide will not control bermuda but is safe to use on St Augustine and Bermuda for the weeds listed on the product label. Bermuda grass is so closely related to St. Augustine grass that there is nothing that will remove Bermuda from St. Augustine and not hurt the St. Augustine as well. In your situation it is recommended to spot treat the Bermuda with Round Up/other non selective herbicide and kill it directly, and then replant St. Augustine in those areas. It can take multiple applications to eliminate it and best time is in the spring as it is starting to green up.
No, SedgeHammer+ is not labeled to target poa annua.
No, SedgeHammer + Herbicide is not labeled to be applied over your sedum ground cover. Most of the time you have to spot treat where the sedge is coming up with a glyphosate based product like the Glyphosel Pro being careful to spray as little of the ground cover as possible.
SedgeHammer+ is labeled to control horsetail when it is less than 6 inches tall. If the horsetail is greater than 6 inches tall, this product will only suppress it. Please review the product label for more information.
You will want to mow 3-4 times before applying SedgeHammer Plus Herbicide.
SedgeHammer Plus Herbicide is not labeled safe or tolerant on switchgrass. Unfortunately, the best option for treating nutsedge in switchgrass would be use a non selective herbicide such as glyphosate and spot treat the weeds directly. You can harvest the switchgrass high enough to leave actively growing weeds, then apply glyphosate at 1 to 2 quarts per acre..It is important to wait until the switchgrass is dormant so that it is not damaged by the glyphosate.
Check with your Extension agent or other experts for information on which herbicides are labeled for use in the state and county where you will be using them.
SedgeHammer Herbicide is labeled to control Kyllinga per the product label. The mix rate is 0.5 oz (13.5 grams) of this product (1 pouch) in 1 gallon of water to treat 1000 sq ft of turfgrass. For optimum Kyllinga control, 2 applications are recommended.
SedgeHammer + Herbicide can safely be applied to the turf grasses, Landscaped areas, and other non-crop areas listed on the label, but should not be applied to any desirable groundcovers, flowers or ornamental plants that are not listed, as it could cause injury.
SedgeHammer Plus Herbicide is labeled for horsetail, however it is only labeled to be applied on turf. Diquat Water Weed and Landscape Herbicide will kill horsetail. Horsetail is very hard to control and it can be tough to properly penetrate through the plant. When using the Diquat you will need to mix it at the rate of 2- 4 oz per gallon of water and mix it with an 80% Non ionic surfactant.
SedgeHammer + Herbicide is not safe to be applied to monkeygrass (liriope). I would suggest using Image Kills Nutsedge Concentrate instead as it safe for monkeygrass (liriope).
SedgeHammer Plus Herbicide or any other herbicide cannot be added to other hose end herbicide containers for tank mixing nor are hose end sprayers recommended to apply Sedgehammer Plus.
For a better and more even coverage, SedgeHammer + Herbicide should be applied using a proper calibrated pressurized hand pump or backpack sprayer.
We apologize but did not receive your full question regarding SedgeHammer + Herbicide. Please let us know how we can further assist you.
It is recommended to wait 3 weeks after applying SedgeHammer + Herbicide to remove any dead weeds or grass in the area.
Please view the full product label for more information.
The product label states that SedgeHammer Plus Herbicide kills nutsedge and other listed weeds without injury to turfgrass, established ornamentals, shrubs, and/or trees, however the manufacturer will know the specifics Gowan manufacturing (928) 783-8844.
The manufacturer of SedgeHammer + Herbicide states on the product label not apply this product around desirable flowers, ornamentals, vegetables, shrubs or trees. In order not to prevent damage to any desirable vegetation, including trees and shrubs, you should keep you application well outside the drip lines and root zones of trees, and avoid any drift from contacting ornamentals or edible vegetation.
SedgeHammer is not labeled to target clover. It should not be applied to desired clover plots only listed, established turfgrasses as directed.
SedgeHammer may not be the best option for you. It is meant more for nutsedge control in turf grass and it cannot be used in or around a vegetable garden or anything edible. It remains in the soil for up to 3 years so the manufacturer recommends that you not plant anything edible in an area where SedgeHammer has been applied for at least 3 years. For nutsedge control in or around a vegetable garden, it is recommended to spot-treat the sedge with a glyphosate or RoundUp-type product directly. With this type of product, it is only necessary to wait 2-3 weeks after application to plant vegetables or anything else. We would recommend Roundup QuickPro 1.5 oz. packs for ease of use.
Also, you should not just pull the plants. This will just split off the rhizome and more new plants will grow from the nutlets left in the soil. To completely remove the plants, you would need to completely dig out the nutlets so that new plants do not grow from them. Many folks will still till the soil after using RoundUp to be sure there are no remaining nutlets that will grow new plants.
