Dicurane Surpass

Manufacturer
ADAMA
Category
Herbicides
Registered until
Registration expired
Registration number
Active materials
A suspension concentrate formulation containing 25 g/l diflufenican and 400 g/l
chlorotoluron.
 
For the control of certain broad leaved weeds in winter wheat, winter barley, durum
wheat and triticale.
 
DIRECTIONS FOR USE
DICURANE SURPASS is a selective herbicide for use pre- and early post-emergence in winter wheat, winter barley and pre-emergence use in durum wheat and triticale. DICURANE SURPASS has not been tested on spring crops of triticale. Qualified use is based on crop safety data for winter sown cultivars only. The product is taken up by germinating seedlings through the shoot and partially by the roots, with little translocation in larger plants.
 
RESTRICTIONS
DO NOT apply if crop is stressed due to waterlogging, drought, nutrient deficiency, pest infestation etc.
DO NOT apply during prolonged periods of frosty weather. Frost following application may cause crop damage.
DO NOT apply if heavy rain is expected with 4 hours.
DO NOT overlap spray swaths.
Crops may suffer some transient damage such as bleaching which is normally outgrown without affecting yield.
DO NOT direct drill autumn sown broad-leaved crops following application of DICURANE SURPASS in theprevious crop.
DO NOT treat broadcast crops.
 
DO NOT roll autumn treated crops until the spring.
DO NOT harrow the crop at any time following
application.
DO NOT apply to soils with greater than 10% organic matter.
DO NOT treat undersown cereals or those due to be undersown.
See ‘Following Crops’ section for further information.
 
WEED CONTROL
DICURANE SURPASS is predominantly a soil acting herbicide which has a low level of solubility giving it residual properties in the soil. It has the ability to be translocated throughout the plant system after absorption. It is capable therefore of giving both pre- and post-emergence weed control.
DICURANE SURPASS is recommended for the control of the following broad-leaved weeds, when applied pre or post-emergence.
 
Strains of some annual grasses (eg. black-grass, wild- oats and Italian rye-grass) have developed resistance to herbicides which may lead to poor control. A strategy for preventing and managing such resistance should be adopted. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, BAA, your local distributor, crop adviser or product manufacturer.
 
CROP SPECIFIC INFORMATION
Crops
Pre- and post-emergence use on winter wheat and winter barley, pre-emergence on durum wheat and triticale.
 
Application
Make only one application of DICURANE SURPASS to the crop.
 
Rate of Use and Volume
Apply DICURANE SURPASS at the following rates – 5.0l/ha - winter wheat and barley and durum wheat, 4.0l/ha - triticale in 200-250 l water/ha. DICURANE SURPASS should only be applied to durum wheat and triticale, pre-emergence of the crop. Ensure a good coverage of soil.
Apply as a MEDIUM spray (BCPC category).
 
Soil Condition
Prepare a firm fine seedbed for best results, with clods no more than fist size. The crop should be sown to the normal depth of 25 mm. It is important to ensure that the seed is well covered. Good weed control depends on burying and dispersing of any trash or burnt straw before or during seedbed preparation.
For best results apply to a moist seedbed. Do not apply to dry, cracked or waterlogged soils.
Do not use on sands (Soil Texture [85] System) or very stony or gravely soils due to risk of crop damage.
Soils with high amounts of ash or organic plant residue will inactivate DICURANE SURPASS.
 
Following Crops
Plough to 150 mm and thoroughly mix the soil before drilling or planting any following crops (either after crop failure or normal harvest).
CROP FAILURE: If a crop fails for any reason, only re-drill with winter wheat or winter barley, after ploughing. A period of 12 weeks must lapse after ploughing before spring crops of wheat, barley, oilseed rape, peas, field beans, sugar beet, potatoes, carrots, edible brassicas or onions may be drilled.
NORMAL HARVEST: In the Autumn following normal harvest, only drill winter cereals, oilseed rape, field beans, leaf brassicas, sugar beet seed crops and winter onions. In the Spring following normal harvest, only the spring crops listed above (under CROP FAILURE) can be drilled.
Occasionally seedlings of brassica crops may exhibit slight discolouration of the cotyledons, which is normally outgrown without affecting subsequent growth.
 
Where diflufenican containing products are applied to successive cereal crops, levels of diflufenican will build up in the soil. Even with ploughing to 150mm and thorough mixing of the soil, there may still be a risk of damage to following crops of onions, leeks, other allium crops and clover. As a precaution, users who rent out their land to growers of these crops should not use diflufenican containing products in successive years before renting out that land.
 
Mixing and Application
Ensure the sprayer is clean and in good working order.
Calibrate according to the sprayer manufacturers recommendations.
Half fill the spray tank with clean water and begin agitation. Add the required quantity of DICURANE SURPASS to the tank and complete filling. Continue agitation until spraying is complete.
Do not leave the sprayer standing with the spray mixture in it for a long period of time.
Wash out the sprayer thoroughly after use, using a wetting agent or a proprietary tank cleaner.
 
Registered for cultures
Winter wheat
Spring barley
Winter triticale