Ratio SXPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

Formulation
A soluble granule formulation containing 400 g/kg thifensulfuron methyl and 100 g/kg tribenuron methyl. Ratio SX is based on SX technology.

Rainfastness
Rainfast after 2 hours from application, provided good drying conditions.

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.

Restrictions
RATIO SX should not be applied to any crop suffering from stress as a result of drought, waterlogging, low temperatures, pest or disease attack, nutrient or lime deficiency or other factors reducing crop growth.
Do not use RATIO SX on cereal crops undersown with grasses, clover or other legumes or any other broad-leaved crop.
Due to the high level of activity of the herbicide, special care must be taken to avoid damage by drift onto broad-leaved plants outside the target area, or onto ponds, waterways or ditches. Thorough cleansing of equipment is also very important - see below.
Contract agents should be consulted before using on crops grown for seed.
RATIO SX should not be applied within 7 days of rolling the crop.
Do not apply RATIO SX more than once to any cereal crop.
Do not tank mix on oats
All requirements or restrictions on other product labels must be adhered to when applied to the same crop as RATIO SX. Contact your DuPont distributor for further information.
Refer to ‘Compatibility’ for details on use of RATIO SX with other ‘ALS inhibiting’ herbicides.

Crops
RATIO SX can be used on all varieties of winter wheat, spring wheat, winter barley, and spring barley, winter oats between the growth stages given below.

Dose
Apply RATIO SX at 100g product/ha.

Timing
RATIO SX must be applied in the spring after 1st February from the three-leaf stage (GS 13) up to and including the flag leaf ligule/collar just visible (GS 39). Safety to crops of oats treated before four tillers (GS 24) has not been assessed.

Following crops
Only cereals, oilseed rape, field beans or grass may be sown in the same calendar year as harvest of a cereal crop treated with RATIO SX. In case of crop failure for any reason, sow only cereals within three months of application of RATIO SX. Before sowing, soil should be ploughed and cultivated to a depth of at least 15-cm.

Volume and application
BEFORE USING RATIO SX, SPRAYING EQUIPMENT MUST BE CLEAN AND FREE FROM CONTAMINATION WITH OTHER PESTICIDES. Application should be made in 100-200 litres of water per hectare, using suitable ground equipment to give good spray cover of the weeds. Use a conventional field crop sprayer at a pressure of 2-3 bars and apply as a MEDIUM spray (as defined by BCPC). When crops are thick or weed growth is dense, use 400 litres of water per hectare. Care should be taken not to overlap spray swaths.

Mixing
Quarter fill the spray tank with clean water, start the agitation and add the required quantity of RATIO SX directly to the tank without prior creaming. Continue agitation while topping up the tank and while spraying.