GrazonNext HL Herbicide does not list sudan grass on the label as tolerable so we cannot confirm whether it would be safe to use on this species. You may contact the manufacturer, Dow AgroSciences, at 317-337-3000 for more information.
GrazonNext HL Herbicide does not actually list that it controls creeping indigo so we are not able to provide a rate. There is an article here with advice on using it that might be helpful.
GrazonNext HL Herbicide is not labeled to control chufa which appears to be in the sedge family. That being said we would recommend testing over a small area before a full broadcast just to be sure.
According to the product label, it is advised that you wait until the next growing season to plant in or seed an area after treating with GrazonNext HL Herbicide.
There is no specific information listed for GrazonNext HL Herbicde regarding freezing point; however it should not be applied when the ground is frozen or stored in temperatures less than 45 degrees.
Choosing to wear a face mask while spot spraying or broadcast spraying is up to you but a mask is not required on the product label. You will want to make sure you are spraying on a non windy day to reduce drift or risk of blow back onto you. Products like GrazonNext would be toxic to an animal were it to drink it or consume it while its wet, same as most products on the market. Once its dried and had time to absorb into the plants you are targeting, there would not be solution left for the animal to consume in a way that would be harmful.
Per the label, "Do not use manure from animals feeding on hay treated with GrazonNext HL Herbicide in compost". Also, "Do not transfer animals grazing or feeding on hay to areas where sensitive broadleaf crop occur without first allowing 3 days of grazing on an untreated pasture. Otherwise, urine and manure may contain enough aminopyralid to cause injury to sensitive broadleaf plants."
We reached out to the manufacturer of GrazonNext HL Herbicide and they said due to the strength of the product, they didn't think any tank neutralizer would work to offset it enough to be safe for disposal on your property. They recommended calling your local city/counties household waste agency and let them know your situation and see if someone can come out and remove the solution for you.
The use rate for GrazonNext HL per acre varies by target plant species and use area. For general applications you can use around 19 oz per acre, and can do no more than 2 broadcast applications per year. This will be typically be applied at around 45 gallons of water per acre. For more specific use instructions you can reference the Product Label.
There should not be any issue applying GrazonNext herbicide after applying your fertilizer. The product label for GrazonNext has directions for mixing the herbicide with liquid fertilizer, but this is not required. You should not use GrazonNext to water-in a dry fertilizer. You do not necessarily need to reapply fertilizer after using GrazonNext.
Please be sure to read the product label completely regarding restrictions on use of and transport of hay, use of manure, and movement of animals since manure and urine from animals consuming grass or hay treated with this product may contain enough aminopyralid to cause injury to sensitive broadleaf plants. Per page 4 of the GrazonNext HL Herbicide label:
Do not plant a broadleaf crop (including soybeans, sunflower,
tobacco, vegetables, field beans, peanuts, and potatoes) in fields
treated in the previous year with manure from animals that have
grazed forage or eaten hay harvested from aminopyralid-treated
areas until an adequately sensitive field bioassay is conducted to
determine that the aminopyralid residues in the soil is at level that is
not injurious to the crop to be planted.
Yes, GrazonNext HL Herbicide is applied at 19-34 fl oz per acre (43,560 sq ft) for horse nettle/bull nettle. The amount of water will depend on how much will cover a 1,000 sq ft uniformly, usually 1-2 gallons of water per 1,000 sq ft. Be sure to review the full product label before use since there are many restrictions regarding the use of this herbicide.
The amount of GrazonNext HL Herbicide needed for 30 acres depends on what rate you would like to use. The rates ranges form 1.2 pints -2.1 pints per acre. Please read over the label to find your desired or needed rate.
Per the product label: GrazonNext HL provides preemergence control of germinating seeds or emerging seedlings of susceptible weeds and re-growth of certain perennial weeds following application. Weed establishment following GrazonNext HL application will depend upon application rate, season of application, and growing condition. GrazonNext HL can provide long-term control of weeds. The length of control is dependent upon the application rate, condition and growth stage of target weeds, environmental conditions at and following application, and the density and vigor of competing desirable vegetation. Long-term broadleaf weed control is most effective where forage grasses are allowed to recover from overgrazing, drought, etc., and compete with weeds.
So you would not apply it as an actual pre-emergent application, you only use a post and in the areas it was applied will it have the pre-emergence control.
GrazonNext HL Herbicide is not labeled for the use on food plots.
You should only mix enough GrazonNext HL Herbicide that you plan to use within about 24 hours after mixing. You should not store solution in your spray tank since it can come out of solution, the active ingredient can break down, and this can leave extra residues and possibly damage your spray tank.
GrazonNext HL Herbicide is applied at a rate of 24-34 fl. oz. per acre (43,560 sq. ft.) for buttercup. This would translate approximately to .55 oz. - .78 oz. per 1,000 sq. ft. The amount of water will depend on how much will cover a 1,000 sq. ft. uniformly, which is usually 1-2 gallons of water per 1,000 sq. ft.
You can refer to the manufacturer's product label here for complete application instructions.
You would not want to spray the GrazonNext in a way that would allow any spray drift to reach the cotton as it would harm it. Per the GrazonNext Product Label: Susceptible Plants: Do not apply under circumstances where spray drift may occur to food, forage, or other plantings that might be damaged or crops thereof rendered unfit for sale, use or consumption. Susceptible crops include, but are not limited to, cotton, okra, flowers, fruit trees, grapes (in growing stage), fruit trees (foliage), soybeans (vegetative stage), ornamentals, sunflowers, tomatoes, beans, and other vegetables, or tobacco. Small amounts of spray drift that may not be visible may injure susceptible broadleaf plants.
Most herbicides that would effectively control broadleaf weeds would have a chance of negatively impacting cotton. You would need to apply the product on a non windy day, and move at a slow speed with your nozzles closer to the target weeds to reduce the chance of drift to the cotton or other desirable crop areas.
The rate range of GrazonNext HL Herbicide for sweet clover and white clover is 1.2 to 1.5 pints (19 to 24 fluid oz) product per acre. Please be sure to review the product label for more information and complete application instructions.
