For the control of marshmallow and annual nettles in grass pastures, rough grass and turf areas; the improvement in the control of marshmallow and certain other broadleaf weeds, in commercial, industrial and public service areas, and around agricultural buildings and yards, in tank mixtures with knockdown herbicides; and for addition to selective herbicides.

Behaviour of Smackdown Herbicide in plants
  • Smackdown Herbicide is a non-residual, contact herbicide that is readily absorbed by green leaves and stems of broadleaf plants, with no translocation within the plant to roots or to other, unsprayed leaves.
  • When used at the label rates, Smackdown Herbicide has no residual activity from herbicide that falls onto soil.
  • The active constituent in Smackdown Herbicide (carfentrazone-ethyl) is a unique herbicidal molecule that interacts with the plant’s photosynthetic system to form highly active compounds. These compounds rupture the plant cell membranes, resulting in the cell contents leaking out which causes rapid cell death.
  • Because this mode of action is connected with photosynthesis, sunlight is essential for expression of herbicidal activity.
  • Smackdown Herbicide is not translocated from where spray lands on susceptible green leaf and stem tissue. Broadleaf species are most sensitive, while grasses are usually unaffected
Benefits of Smackdown Herbicide

When mixed with Bow & Arrow Herbicide:

  • Excellent tank mix partner with selective broadleaf herbicide Bow & Arrow Herbicide.
  • Improves effectiveness against difficult to kill broadleaf weeds.

When mixed with Knockdown Herbicides:

  • Excellent tank mix partner with certain knockdown herbicides (i.e. glyphosate and paraquat based herbicides).
  • Smackdown Herbicide shows robust and consistent control of hard-to-kill broadleaf weeds. Smackdown Herbicide has excellent compatibility with glyphosate and paraquat based herbicides for broad spectrum weed control.
  • Improves effectiveness against difficult to kill broadleaf weeds.
  • When used in combination with knockdown herbicides, Smackdown Herbicide significantly increases brownout and improves control of hard to kill weeds such as Marshmallow, Capeweed, Paterson’s curse and Wild radish.
Brand: Turf Culture
Group G Herbicide
Mobility Type:
Product Form:
Liquid (Emulsifiable Concentrate)
Weed: Deadnettle, Marshmallow, Stinging Nettle
Application Rate: 25-75mL per ha
Active Ingredient: 240g/l Carfentrazone-ethyl
australian agribusiness

Nuturf is a division of Australian Agribusiness (Holdings) Pty Ltd ABN 61 135 355 958