Registered until
Registration number
Active materials


CALARIS is a suspension concentrate formulation containing 330 g/l terbuthylazine and 70 g/l mesotrione.

IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.
CALARIS contains mesotrione and terbuthylazine. The uptake is through both the leaves and the root system, thus combining contact action with residual weed control. The product controls a broad spectrum of annual broad-leaved weeds and certain grasses. Young weeds are most susceptible to CALARIS.
For use only as a herbicide for the control of weeds in forage maize. Forage maize may be sprayed any time from the 2–8 leaf stage. DO NOT USE on seed crops or on sweetcorn varieties.
Spray Timing
Always inspect crop and weed growth stage immediately before spraying.
For best results treat young weed seedlings. See weed control tables for application details.
For the best results CALARIS should be applied when the weeds are actively growing i.e. in warm humid weather with adequate soil moisture. Treatment in poor growing conditions or in dry soil may give less reliable control.
Do not spray when the crop foliage is wet.
It is not recommended to spray crops suffering stress e.g. when in very cold or drought conditions, or when wide temperature fluctuations are expected or excessive rainfall is expected to follow application. Under these adverse conditions mild to moderate chlorosis may be observed on sprayed leaves. This effect is usually transient and does not affect yield.
Take extreme care to avoid drift onto all plants outside the target area, otherwise damage will result.
Ensure that spray swaths are matched accurately and do not overlap.
Good spray coverage is essential and care should be taken to ensure that the sprayer has amatched set of nozzles, the machine is correctly calibrated and adjusted to the correct height above the crop.
Preparation of the spray
Shake the CALARIS container before opening.
Half-fill the spray tank with clean water, add the required amount of CALARIS and agitate while filling the tank. RINSE CONTAINER THOROUGHLY by using an integrated pressure rinsing device or manually rinsing 3 times. Add washings to sprayer at time of filling and dispose of container safely. Continue agitation during spraying.
Volume of water
Even coverage of the weeds is essential.
Use 200 to 300 litres (maximum) of water per hectare.
The lower rate is preferable but the higher volume may be necessary where there are dense or well developed weed populations.
Application methods
Apply through a conventional field crop sprayer using a pressure of 2–3 bars. Ensure the sprayer is correctly calibrated before use.
Do not leave spray liquid in the sprayer for long periods (i.e. overnight).
Apply using a medium quality spray at a pressure of at least 2 bar. Apply through conventional crop spraying equipment.
After Use
It is important to wash equipment thoroughly after use to remove all traces of CALARIS as even small amounts may cause damage to crops. Rinse inside the tank with clean water using at least one tenth of the spray tank volume. After flushing through pump and spray lines, drain and repeat procedure.
Disposal of spray tank washings should be in accordance with local, state or national legislation.
Perform superficial cleaning of spray equipment in the field. Products and their residues, emptied containers or packs as well as cleaning and rinsing fluids must not be allowed to enter watercourses. This also applies to indirect introduction through the sewage system, farmyard and road drains or rainwater and wastewater pipes.
Registered for culturesRateBBCH
Corn1.5 l0 - 18