AC 650Plant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A suspension concentrate (SC) formulation containing 450 g/litre of napropamide (41.4% w/w) for the control of annual grass and broad-leaved weeds in winter oilseed rape.

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.

RESTRICTION/WARNINGS
Weed control may be reduced where the spray is mixed too deeply into the soil.
Do not treat crops adversely affected by poor soil, adverse weather or cultural conditions.
Avoid spray overlap, particularly on headlands.
It is important to ensure that the seedbed is free from clods and weeds, and in good tilth.
Incorporation under wet conditions is not satisfactory.
AC650 can be used on a wide range of soils but should not be applied to Sands (ADAS ’85 system), or to soils with more than 10% organic matter.

TREATMENT OF CROPS
Rate of Use:
When using alone apply AC650 at 2.8 litres per hectare.
Should be sprayed and incorporated into the soil before drilling the crop. Incorporation MUST OCCUR within 30 minutes of application. Use a medium-coarse spray.
Where volunteer cereals are a problem, an additional post emergence spray of an alternative product may be made according to the manufacturers recommendations.
Conventional seedbed preparation:
Apply during the later stages of seedbed preparation. Use only a light set of harrows to incorporate the herbicides in the top 25mm (1”) of soil.
With this implement a high forward speed of at least 8km/h (5mph) is required and two passes are recommended, with the second at an angle to the first. Drilling may be carried out immediately or within 14 days of application. Alternatively, a drill fitted with light harrows will provide a second pass during drilling. In this case the direction of sowing should be at an angle to the first pass and should be completed within 48 hours of application.

PRE-EMERGENCE APPLICATION (AC650 ALONE)
Rate: 2.8 litre/ha.
Water Volume: 200- 550 litres/ha
Spray Quality: MEDIUM or COARSE spray (as defined by BCPC) in 200-550 litres of water per hectare at a spray pressure of 2 to 3 bar
Application should be made before weeds have germinated.
As with other residual weed killers, control may be unsatisfactory under dry conditions. AC650 may lose some of its effectiveness in conditions of high light intensity. Avoid spray overlap, particularly on headlands.

Minimum cultivation:
May be sprayed directly onto the stubble and incorporated into the top 25mm (1”) of soil as part of the surface cultivations. Tandem discs, spring tine harrows or similar non-powered harrows are suitable implements. Where surface cultivations have been completed before application, use only light tine harrows to incorporate the herbicides.
In dry conditions better weed control may be achieved where the product is incorporated into the soil.
Ideally the soil should be moist at application and there should be rainfall afterwards.

SUCCEEDING CROPS
No crop, other than supported uses including brassica crops (leaf, flower), root crops, fodder crops and oilseed rape, can be drilled within 7 months following application of Napropamide 450 g/L SC.
Maize may be grown providing a period of 9 months has elapsed since Napropamide 450 g/L SC was applied. Autumn sown wheat and grass or any other crop may be planted/dril

MIXING
Half fill the spray tank with water and begin agitation. Add the required quantities of AC650 to the sprayer using a filling device (e.g. induction bowl, probe etc.) or otherwise by direct addition to the spray tank. Wash out container thoroughly, adding washings to the sprayer, preferably use an integrated pressure-rinsing device where available, otherwise manually rinse at least three times. Continue agitation during spraying.
Wash out sprayer thoroughly after use.