GrazonNext HL Herbicide will not control Johnsongrass. Per the product label, this product may suppress certain established grasses, such as smooth broomegrass, especially when plants are stressed by adverse environmental conditions. Plants should recover from this transient suppression with the onset of environmental conditions favorable to grass growth and upon release from weed competition.
We have Pastora Herbicide to control Johnsongrass in Bermuda pastures. If you have another type of desirable grass, then you may need to spot treat with an organic or other non-selective herbicide labeled for use in grazing areas, such as AXXE Broad Spectrum Herbicide.
It is common for the mixed solution to turn milky when using herbicides such as GrazonNext HL Herbicide however it should not be plugging the screen in the sprayer. GrazonNext HL has a shelf life of 2-3 years when stored in a cool dry environment and not exposed to extreme heat or freezing temperatures. Be sure you are mixing at the correct rate per the product label.
It is recommended to triple rinse your sprayer after each use with plain water to prevent any corrosion, buildup or settlements in the equipment. If you've had your sprayer for some time, it could be a new screen is needed from buildup of other pesticides.
Dow Agro Sciences can be reached at 317-337-3000 for more information.
Per page 4 of the product label for GrazonNext HL Herbicide:
During the season of establishment, GrazonNext HL should be applied only after perennial grasses are well established (have developed a good secondary root system and show good vigor). Most perennial grasses are tolerant to GrazonNext HL at this stage of development. GrazonNext HL may suppress certain established grasses, such as smooth bromegrass (Bromus inermis), especially when plants are stressed by adverse environmental conditions. Plants should recover from this transient suppression with the onset of environmental conditions favorable to grass growth and upon release from weed competition.
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.
GrazonNext HL Herbicide is labeled to be applied for applications on pastures. Please provide the types of weeds that you wish to eradicate or prevent. Please let us know if you are seeking a post-emergent or a pre-emergent herbicide for your home lawn and we will be happy to help you select a product.
There are no restrictions for when you can allow animals to graze on areas treated with GrazonNext Herbicide. We would always recommend waiting for the application to dry completely before allowing animals to re-enter a treated area. 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.
GrazonNext HL Herbicide could harm desirable corn plants if they are contacted with the spray or drift. As long as you apply on a calm day to limit drift of GrazonNext HL Herbicide and do not spray the corn directly or allow overspray to contact it, there should not be an issue applying an are near a corn field. Be sure to review the full product label regarding crop rotation and use of manure on other sites.
Per the GrazonNext product label:
Do not use hay or straw from areas treated with GrazonNext HL within the preceding 18 months or manure from animals feeding on hay treated with GrazonNext HL in compost.
Restrictions in Hay or Manure Use:
Do not use aminopyralid-treated plant residues, including hay or straw from areas treated within the preceding 18-months, in compost, mulch or mushroom spawn. - Do not use manure from animals that have grazed forage or eaten hay harvested from treated areas within the previous 3 days, in compost, mulch or mushroom spawn.
Do not spread manure from animals that have grazed or consumed forage or hay from treated areas within the previous 3 days on land used for growing broadleaf crops.
Manure from animals that have grazed forage or eaten hay harvested from treated areas within the previous 3 days may only be used on pasture grasses, grass grown for seed, wheat and corn.
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.
To promote herbicide decomposition, plant residues should be evenly incorporated in the surface soil or burned. Breakdown of aminopyralid in plant residues or manure is more rapid under warm, moist soil conditions and may be accelerated by supplemental irrigation.
GrazonNext HL Herbicide is not labeled to treat waterhemp weed. If you are treating crops areas, Prowl H2O Herbicide is a pre-emergent that can help control waterhemp before it germinates. This product WILL NOT control actively growing weeds. If the waterhemp is actively growing, Roundup/glyphosate is the recommendation but if the weeds is too mature you would really need to cut it down and treat it then. Weeds are generally best treated when they just emerge and are young. There is the option of Eraser Max which can kill and prevent weeds in an area for up to 1 year. Alternatively, there is the Cheetah Pro as another non selective that is labeled for waterhemp and glyphosate resistant weeds. You can tank mix it with the Eraser Max to get the prevention as well.
