CalarisPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

FORMULATION & ACTIVE INGREDIENT: CALARIS is a suspension concentrate containing 330 g/l terbuthylazine and 70 g/l mesotrione.

CALARIS is a co-formulation of mesotrione and terbuthylazine for control of a range of broad leaved weeds and certain grasses in forage and grain maize. 

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 broadleaved weeds and certain grasses. Young weeds are most susceptible to CALARIS.

 

For use only as a herbicide for the control of weeds in in forage or grain maize. Forage or grain maize may be sprayed any time from the two to eight leaves stage. DO NOT USE on seed crops or on sweet corn varieties.

 

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.

  

Calaris contains two active ingredients with different modes of action. Mesotrione  is a triketone which disrupts development of plant pigments (4-HPPD inhibitor); terbuthylazine is a triazine which inhibits photosynthesis (photosystem IIinhibitor).

Weed control can be reduced if strains of individual weed species develop that are less sensitive to a specific herbicide, or herbicide group.

 

CALARIS, a formulated mixture of two active ingredients with two different modes of action, will reduce the likelihood of resistance development. There is no known cross resistance between mesotrione or terbuthylazine, or the groups of herbicides to which each belongs.

 

Furthermore, at the present time, triketones (e.g. mesotrione) are not approved in

crops other than maize. There is no similar mode of action in herbicides for other crops and therefore crop rotation will also delay the onset of any resistance to this active ingredient. Where continuous maize is grown, the use of CALARIS for more than two seasons should be avoided.

 

Treatment must not be applied on sands or very light  soils.

Residual weed control will be reduced on soils with more than 10% organic  matter.

 

CALARIS contains an adjuvant system and the addition of an adjuvant or a tank mix wetting agent is not recommended. 

The recommended dose rate is 1.0 to 1.5 litres per hectare depending on the type of weeds present. CALARIS should be applied after crop emergence, the prefered forage or grain maize crop stage is when 2-6 leaves have been formed.

 

Annual Broad-Leaved Weeds:Fat hen

Dose rate l/ha:1.0

Weed growth stage: Emergence to first flowers visible.

 

Annual Broad-Leaved Weeds:Common chickweed

Dose rate l/ha: 1.0

Weed growth stage: Emergence to start of flowering.

 

Common chickweed

1.0

Emergence to start of flowering

 

Scented mayweed

1.0

Emergence to 8 leaves

 

Field pansy

1.0

Emergence to 6 leaves

 

Black bindweed

1.0

Emergence to 10 leaves

 

Redshank

1.0

Emergence to 8 leaves

 

Pale persicaria

1.0

Emergence to 8 leaves

 

Knotgrass

1.0

Emergence to 8 leaves

 

Shepherd’s purse

1.0

Emergence to flowering

 

Shepherd’s purse

1.0

Emergence to flowering

 

Red-deadnettle

1.0

Emergence to 4 leaves

 

Hemp nettle

1.0

Emergence to 4 leaves

 

Common field speedwell

1.0

Emergence to 4 leaves

 

Green field speedwell

1.0

Emergence up to 4 leaves

 

Field penny-cress

1.0

Emergence to flowering

 

Common orache

1.0

Emergence to 8 leaves

 

Barnyard grass

1.5

Emergence up to mid tillering

 

Annual meadow grass

1.5

Emergence up to mid tillering

 

Crabgrass

1.5

Emergence up to 2 leaves

 

Good spray cover is essential and care should be taken to ensure that the sprayer has a matched 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. On emptying the container, RINSE CONTAINER THOROUGHLY by using an integrated pressure rinsing device or manuallyrinsing

3 times. Add washings to sprayer at time of filling and dispose of container safely. Continue agitation during spraying.

 

Even cover of the weeds is essential.

Use in a recommended 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.

 

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 (BCPC) at a pressure of at least 2 bar. Apply through conventional crop spraying equipment.

 

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 of tank with clean water using at least one tenth of the spray tank volume. After flushing through pump  and spray lines, drain and repeatprocedure.

Disposal of spray tank washings should be in accordance with local, state or national legislation.

Perform superficial cleaning of spray equipment in the field. Application liquids and their residues, products and their residues, emptied containers or packs as well as cleaning and rinsing fluids must not be allowed to enter water courses. This also applies to indirect introduction through the sewage system, farmyard and road drains or rainwater and wastewaterpipes.

 

 

Winter wheat (including durum wheat), winter barley and rye grass can follow a forage maize crop treated with CALARIS provided the land is ploughed or cultivated to a depth of 150mm and 12 weeks or more have elapsed after spraying.

If prolonged drought has occurred, this period should be extended to 14 weeks and mouldboard ploughing is recommended.

Deep ploughing (greater than 15cm) followed by cultivation is necessary before drilling oilseed rape, again 12 (or 14 weeks must have elapsed after application

 

After ploughing or cultivation to a depth of 150mm, maize, ryegrass, spring wheat and spring barley may be sown in the spring following application of CALARIS, do not sow any other crop at this time.