Nimbus CS

A suspension concentrate containing 250 g/litre (22.9% w/w) metazachlor and 33.3 g/litre (3.1% w/w) clomazone.

A residual pre-emergence herbicide for the control of a range of broad leaved and grass weeds, including cleavers, in winter oilseed rape.

DIRECTIONS FOR USE

Restrictions/Warnings

Nimbus CS can be used on all varieties of winter oilseed rape Nimbus CS is suitable for use on all soil types as defined by Soil Texture (85) System, except sands and very light soils and soils containing more than 10% organic matter.

When Nimbus CS is applied, it is important for crop safety to ensure a good seed bed has been

established and there is physical separation of the herbicide from the seed. Ensure that the seed is well covered with soil to a depth of 20 mm. With direct drilled crops, harrow across the

slits to cover the seed before spraying.

Do not apply to cloddy seedbeds as this may reduce levels of weed control. Seedbeds must have a fine, firm tilth for optimum weed control. Loose or cloddy seedbeds must be consolidated prior to application.

Do not apply to stony soils; i.e. stones, flints or chalk readily visible on surface. On brashy and

stony soils, Nimbus CS may cause transient crop bleaching and/or reduction in crop vigour or plant stand.

Do not apply when heavy rain is forecast and do not use on waterlogged soil or soils prone to

water logging. Transient crop bleaching and/or crop thinning / reductions in crop vigour can occur if there is very wet weather after application.

Do not apply Nimbus CS to soils with a compaction layer or to poorly drained soils since damage can ocur under waterlogged conditions.

Soil moisture is required for effective weed control via root uptake. Residual control may be reduced under prolonged dry conditions.

Care should be taken to avoid overlap of spray swaths.

Extreme care should be taken to avoid damage by drift onto plants outside the target area.

DO NOT USE Nimbus CS when any of the following conditions apply:- • When crop seed has been broadcast. • The crop seed has started to germinate (i.e. 48 hours after drilling) • Crop seed is not covered with 20 mm of soil; • When heavy rain is forecast; • Dry, cloddy or open seedbeds; • Late drilled crops – as a guide these are crops drilled later than the first week in September in Northern England and Scotland and later than mid-September in the rest of the UK; • Stony soils, i.e. stones, flints or chalk are readily visible on the soil surface.

Under frosty conditions a transient scorch may occur.

To reduce the risk of movement of Nimbus CS to water:- a. On clay soils, create a fine, consolidated seedbed to slow the downward movement of water. b. Do not apply Nimbus CS to dry soil. Moist soils have fewer and smaller cracks. c. Do not apply Nimbus CS if heavy rain is forecast, wait until after the event.

Weed Control

Nimbus CS is taken up via cotyledons and roots. Susceptible weeds may still emerge but will lack pigmentation and therefore plant death will occur shortly afterwards. Optimum results are obtained from applications made prior to weed emergence to fine, firm and moist seedbeds.

Susceptibility of weeds to Nimbus CS

Weed:Barley, Volunteer