DevrinolPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A suspension concentrate (SC) formulation 450 g/litre of napropamide (40.9% w/w) for the control of annual grass and broad-leaved weeds in; strawberries, blackcurrants, gooseberries, raspberries, certain brassicas (broccoli, Brussels sprouts, cabbage, calabrese, cauliflower and kale), field and container-grown trees and shrubs, and winter oilseed rape. The (COSHH) Control of Substances Hazardous to Health Regulations may apply to the use of this product at work.

DIRECTIONS FOR USE
IMPORTANT: This information is authorised 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/Warnings
1. All Crops
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.
Incorporation under wet conditions is not satisfactory.
Surface manure, straw, moss or other organic detritus may reduce weed control. Soil cultivations after spraying should be avoided.
DEVRINOL can be used on a wide range of soils but should not be applied to Sands (as defined by the ADAS ‘85 System) or to soils with more than 10% organic matter.

2. Maiden Strawberry Crops
Runners should be planted carefully so that no roots are left exposed.
Soil should be firmed around the roots before application.
Do NOT treat runners of poor vigour or with shallow roots.
Do NOT apply DEVRINOL to runner beds.
DEVRINOL has been used successfully on a wide-range of strawberry varieties. However, owing to the introduction of a plethora of new varieties and changes in the methods of crop husbandry, only a small area of new varieties should be treated in their first season.

3. All Fruit Crops
DEVRINOL must not be used on protected crops.
PROCESSED CROPS: Tests have proved that DEVRINOL does not taint strawberries, blackcurrants, or gooseberries; nevertheless, growers should consult the processor before use.
RASPBERRY, BLACKCURRANT and GOOSEBERRY crops should be established for at least 10 months before treatment.
Soft fruit grown in Very Light Soils (as defined by the ADAS ‘85 System) should not be treated.

Brassicas
DEVRINOL may be sprayed prior to transplanting broccoli, Brussels sprouts, cabbage, calabrese, cauliflower, or kale.
Apply DEVRINOL at 2.8 litres/ha as a MEDIUM or COARSE spray in 200-500 litres water/ha.
To maximise efficacy, DEVRINOL should be incorporated to a depth of 50 mm prior to transplanting. Incorporation MUST OCCUR within 30 minutes of application.
DEVRINOL is not recommended for use in plant raising beds.
Spring Planted Brassicas: Spring tine harrows (triple-K type), tandem disc harrows, power driven reciprocating harrows, the Lely Roterra and rotary cultivator with L-shaped blades are all suitable for incorporation. Make one pass with a rotary cultivator, but two passes, with the second at an angle to the first, are recommended for any other type of harrow. When non-powered harrows are used, a high forward speed of at least 8kph (5mph) is required to obtain thorough incorporation.
A slow forward speed of 5 kph (3 mph) is recommended for the Lely Roterra and for rotary cultivators in combination with a high rotor speed.
Summer Planted Brassicas: i.e. those usually planted during July and August, e.g. winter broccoli: Application should be made during the later stages of seedbed preparation and using a light set of harrows to blend the spray into the top 25 mm of soil. With this implement a high forward speed of at least 8 kph (5 mph) is required and two passes are recommended to obtain thorough mixing, the second pass being at an angle to the first.

Sequential Programme:
DEVRINOL should be sprayed and incorporated into the soil prior to drilling or transplanting a brassica crop. Incorporation MUST OCCUR on the SAME DAY as application.
A follow up treatment of an approved formulation of an alternative product may be applied after drilling or transplanting according to the manufacturers recommended rate.

Timing
DEVRINOL may be applied pre-drilling and incorporated in a tank mixture with approved formulations or alone as a pre-emergent spray.

Winter Oilseed Rape
Apply DEVRINOL at 2.8 litres/ha as a MEDIUM or COARSE spray.
DEVRINOL may be applied incorporated into the soil before drilling the crop (incorporation MUST OCCUR within 30 minutes of application) or post-drilling, pre-emergence of the crop.
Where volunteer cereals are a problem, an additional post-emergence spray of an alternative product may be made according to the manufacturer’s 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 25 mm of soil. With this implement a high forward speed of at least 8 km/h (5 mph) 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.
Minimum cultivation: May be sprayed directly onto the stubble (if burnt, allow 24 hours before spraying) and incorporated into the top 25 mm 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.

Succeeding Crops
Before planting any following crop, the soil should be mould-board ploughed to a depth of 20 cm.
Do not use DEVRINOL in the same season as replanting/drilling is planned.
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 DEVRINOL.
Maize may be grown providing a period of 9 months has elapsed since DEVRINOL was applied. Autumn sown wheat and grass or any other crop may be planted/drilled providing a period of 12 months has elapsed since DEVRINOL was applied.

Mixing
Half fill the tank with water and begin agitation. Add the required quantity of DEVRINOL 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 using an integrated pressure-rinsing device where available, otherwise manually rinse at least three times.
For all tank mixes, follow the procedure above except add DEVRINOL to the tank first. Continue agitation during spraying.
Wash out sprayer thoroughly after use

Compatibility
To control weeds not fully susceptible to DEVRINOL, in established fruit crops, trees and shrubs, a tank-mixture or a sequential programme of DEVRINOL at the recommended rate with an approved formulation is recommended.
Alternatively, in established strawberry crops, DEVRINOL may be followed by an approved formulation of phenmedipham.
Follow the manufacturer’s recommendations for the application of phenmedipham.
Please refer to the UPL Europe Limited website for further information, (www.upleurope.com)