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A selective post-emergence herbicide for grass weed control in broadleaf crops, forage brassicas and forestry.

  • SeQuence is particularly effective against ryegrasses, annual summer grasses, bromes, wild oats and annual poa.
  • Allows broadleaf crops to thrive without grass weed competition.
  • Suitable for many broadleaf crops, including forage brassicas and forestry.


Active Ingredient: 240g/L Clethodim


Formulation: Emulsifiable concentrate


Tank Mix Partners

Bonza® must always be added to SeQuence at 1L/100L unless otherwise stated. SeQuence may be tank mixed with Archer® or Prestige® if broadleaf weed control is also required. Attack® may be added to SeQuence when pest control is needed.


Weeds Controlled

Barnyard grass, bristle grass, summer grass, smooth witchgrass, wild oats, annual poa, annual and perennial ryegrasses, volunteer cereals, bromes, browntop, barley grass, couch, paspalum, Indian doab.


Withholding Periods

Vegetable crops – 5 weeks.

Legume crops, Forage herbs, Forage brassica crops – 3 weeks.



SeQuence is considered rainfast if applied at least one hour before rainfall.


Directions for use

Unless otherwise stated, always apply SeQuence in a tank mixture with Bonza at 1L/100L spray mixture (max 2L/ha). For best results apply to young actively growing grass weeds.


Wild oats, Annual ryegrass, Perennial ryegrass, Cocksfoot, Barnyard grass, Summergrass, Floating sweet grass, Canary grass, Bristle grass, Volunteer cereals 0.25-0.5
Annual poa, Smooth witchgrass, Soft brome, Phalaris, Tall fescue, Prairie grass, Ripgut brome, Browntop, Barley grass 0.5-1.0L
Couch, Paspalum, Indian doab  2.0-3.0



Use the lower rate on seedling grass weeds (2 -5 leaf) or actively regenerating rhizomes, and the higher rate on tillering plants or hardy rhizomatous grasses. On established sod-bound rhizomatous grasses and established turf ryegrasses in non-cultivated crops, suppression only may be obtained. On crops that have been grazed, allow grasses to freshen for a few days once the stock have been moved (5 -10cm new growth) before treating.


Crops and situations

White clover seed Apply after closing up, to control annual and perennial ryegrasses and other grass weeds
Legume feeds (eg Lucerne, Lupins, Clover, Lotus, Trefoil) To control annual and perennial ryegrass and other grass weeds.
Forage brassicas Apply when grass seedlings are small (typically 3 – 6 weeks after planting) and well before canopy closure. If tank mixing SeQuence + Bonza + broadleaf herbicides (e.g. Prestige) and/or insecticides (e.g. Attack), use Bonza at 500ml/100L (max 2L/ha) and apply during cooler conditions in the morning or evening.
Forage herbs (eg Chicory, Plantain) To control annual and perennial ryegrass and other grass weeds. Do not apply SeQuence to plantain seed crops after flower heads are first visible in the base of the plants.
Orchards To control actively growing grass weeds. Apply as a directed to the base of the trees to avoid fruit contact.
Vegetables To control actively growing grass weeds. Do not apply more than 1L/ha. Crop safety has been demonstrated on onions, carrots, squash and lettuce. Where crop safety is unknown, a small area should be treated before widespread application.
NB: Asparagus – DO NOT apply during the cutting period.
Peas, Lentils, Oilseed rape To control wild oats. Apply 0.25L/ha when the majority of oats are in the 2-5 leaf growth stage. A temporary effect on leaf colour and sheen may occur in peas. This does not affect crop vigour or yield.
Forestry (Radiata pine, Macrocarpa, Douglas fir) Do not exceed 1L/ha.
Tree release – Spot treatment:
Use 3.5ml SeQuence per litre of water. Apply 20ml spray solution per square metre.