Cleranda

A suspension concentrate, containing 17.5 g/l imazamox and 375 g/l metazachlor for use as a contact & residual herbicide for the control of a range of broad leaved and grass weeds in any Clearfield oilseed rape hybrid carrying the Clearfield brand.

DIRECTIONS FOR USE

Cleranda is a contact and residual herbicide that can be used for the control of a range of broad leaved and grass weeds in any Clearfield oilseed rape hybrid carrying the Clearfield brand.

Restrictions/Warnings

CLERANDA MUST ONLY BE USED ON CLEARFIELD OILSEED RAPE HYBRIDS.

COMPLETE CROP LOSS WILL OCCUR IF CLERANDA IS APPLIED TO OILSEED RAPE THAT DOES NOT CARRY THE CLEARFIELD BRAND.

Cleranda 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 mater.

Do not apply to stony soils; i.e. stones, flints or chalk readily visible on surface. On brashy and stony soils, Cleranda may cause some reduction in crop vigour and/or plant stand.

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

Do not apply when heavy rain is forecast and do not use on waterlogged soil or soils prone to waterlogging. Crop thinning or reductions in crop vigour can occur if there is very wet weather after application. Where a crop check has occurred, this normally grows out after a few weeks and yields are normally unaffected.

Weeds germinating from depth may not be controlled.

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 Do not apply Cleranda to crops suffering from stress, which may be caused, for example, by pests, disease, waterlogging, poor seedbed conditions or previous chemical treatment.

Under frosty conditions a transient scorch may occur.

Do not disturb the soil after applicati.

Extreme care is required to avoid spray drift on to neighbouring crops and plants outside the target area.

As with other oilseed rape hybrids, seed from Clearfield oilseed rape should not be farm-saved.

To reduce the risk of movement of Cleranda to water:

a. On clay soils, create a fine, consolidated seedbed to slow the downward movement of water.

b. Do not apply Cleranda to dry soil. Moist soils have fewer and smaller cracks.

c. Do not apply Cleranda if heavy rain is forecast, wait until after the even

Weed Control

Cleranda is taken up via cotyledons, roots and shoots and takes maximum effect before, or shortly after, weed emergence. Optimum results are obtained from applications made to fine, firm and moist seedbeds.

Weeds germinating from depth may not be controlled. Soil moisture is required for effective weed control via root uptake. Residual control may be reduced under prolonged dry condition.

Susceptibility of weeds to single applications of Cleranda

WINTER OILSEED RAPE

Weed:Annual Mercury

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Moderately Susceptible (Control of Annual Mercury can be variable. Improved control can be gained with the addition of the adjuvant Dash HC)

Maximum susceptible growth stage of target weed:2 true-leaves

Weed:Black-grass

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Resistant

Weed:Corn Chamomile

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed:Cotyledon

Weed:Charlock

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 4 true-leaves

Weed: Chickweed, Common

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed: Two side shoots visible

Weed: Cleavers

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Moderately Susceptible (Control of Cleavers can be variable. Improved consistency may be gained with the addition of the adjuvant Dash HC).

Maximum susceptible growth stage of target weed: 2 whorls

Weed: Crane’s-bill species

Rate:

Critical Comments:

Weed susceptibility rating: Moderately Susceptible

Maximum susceptible growth stage of target weed:2 true leaf

Weed: Dead-nettle, Red

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed: 2 true-leaves

Weed: Fat Hen

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Moderately Susceptible

Maximum susceptible growth stage of target weed: 4 true-leaves

Weed: Fumitory, Common

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed: 3 true-leaves

Weed: Groundsel

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 2 true-leaves

Weed: Mayweed, Scented

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 4 true-leaves

Weed: Mayweed, Scentless

Rate: 2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed:2 true-leaves

Weed: Mustard, Hedge

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 4 true-leaves

Weed: Mustard, White

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 3 true-leaves

Weed: Pansy, Field

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Moderately Susceptible

Maximum susceptible growth stage of target weed: 2 true-leaves

Weed:Parsley Piert

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 3 true-leaves

Weed: Poppy, Common

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed: 4 true-leaves

Weed:Runch (Wild Radish/Jointed Charlock)

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed:4 true-leaves

Weed: Shepherd’s Purse

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating:Susceptible

Maximum susceptible growth stage of target weed:4 true-leaves

Weed: Speedwell, Common Field

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed:4 true-leaves

Weed:Speedwell, Ivy-leaved

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed: 2 true-leaves

Weed: Volunteer oilseed rape

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of target weed: Optimum: 2-4 true-leaves Maximum: 6 true leaves

Weed: Volunteer Barley

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Moderately Susceptible ( Control of volunteer barley may be variable, optimum control will be achieved when Cleranda is applied when this weed has 2-3 fully-expanded leaves. Control of volunteer barley can be further improved by using Cleranda with the adjuvant Dash HC)

Maximum susceptible growth stage of target weed: Optimum: 2-3 fully expanded leaves

Weed:Volunteer Wheat

Rate:2.0 l/ha Cleranda

Critical Comments:

Weed susceptibility rating: Moderately Resistant ( Control of volunteer wheat may be variable. The level of control and maximum susceptible growth stage can be improved by using Cleranda with the adjuvant Dash HC)

Maximum susceptible growth stage of target weed: Maximum: Before 3 tillers 1 tiller

Susceptibility of weeds to a single application of Cleranda + Dash HC.

WINTER OILSEED RAPE

Weed: Annual Mercury

Rate: 2.0 l/ha Cleranda + 1.0 l/ha Dash HC

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of weed: 2 true-leaves

Weed: Volunteer Barley

Rate: 2.0 l/ha Cleranda + 1.0 l/ha Dash HC

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of weed: Optimum: 2-3 fully expanded leaves Maximum: Before 3 tillers

Weed: Volunteer Wheat

Rate: 2.0 l/ha Cleranda + 1.0 l/ha Dash HC

Critical Comments:

Weed susceptibility rating: Susceptible

Maximum susceptible growth stage of weed: 2 tillers

Weed resistance management

This product contains imazamox which is an ALS inhibitor, also classified by the Herbicide Resistance Action Committee as ‘Group B’. Only use as part of a weed resistance management strategy that includes cultural methods of control and does not use ALS inhibitors as the sole chemical method of grass-weed control.

Strains of some annual grasses (e.g. Black-grass, Wild-Oats, and Italian Ryegrass) 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, CPA, your distributor, crop adviser or product manufacturer.

Populations of black-grass, Italian ryegrass, chickweed and poppy with high levels of resistance may not be fully controlled.

Key elements of the weed resistance management strategy for Cleranda:-

- Always follow WRAG guidelines for preventing and managing herbicide resistant weeds.

- Maximise the use of cultural control measures wherever possible (e.g. crop rotation, ploughing, stale seedbeds, etc).

- Adopt as diverse a rotation as possible using autumn and spring sown crops.

- Consider rotational ploughing every 3 to 5 years to improve black-grass control.

- Where the Clearfield crop is to be established by non-inversion tillage it is important to obtain high levels of black-grass control in the previous crop.

- Do not rely on one herbicide mode of action for the control of grass or broad-leaved weeds in the same field over several years.

- For the control of black-grass, ryegrass and wild oats, always use Cleranda in tank mix or sequence with other effective graminicides with different modes of action.

- Apply post-emergence products/mixtures to small, actively growing weeds to maximise the level of control.

- Where there is significant risk of the development of ALS resistant grass weeds, consider the inclusion of a spring crop(s) in the rotation, to increase the opportunity for cultural control measures.

- Monitor fields regularly and investigate the reasons for any poor control.

Crops

Cleranda can be used on any winter Clearfield oilseed rape hybrid carrying the Clearfield brand.

For a list of current Clearfield oilseed rape hybrids contact either your local BASF Agronomy Manager or the BASF Technical Services Hotline: 0845 602 2553

COMPLETE CROP LOSS WILL OCCUR IF CLERANDA IS APPLIED TO OILSEED RAPE THAT DOES NOT CARRY THE CLEARFIELD BRAND.

To ensure that Cleranda, is only applied to Clearfield oilseed rape hybrids, it is important to clearly and accurately record the location of Clearfield® oilseed crops on the farm and provide relevant information to those staff and contractors applying Cleranda.

Time of application

Cleranda may be applied post-emergence of the crop from two fully expanded cotyledons (GS 10) and up to the eight true leaf growth stage (GS 18).

Rate of application

Apply Cleranda at 2.0 litres per hectare.

Improved control of certain weed species can be achieved by applying 2.0 l/ha Cleranda plus 1.0 l/ha of the adjuvant Dash HC.

Following Crops

Following crops after normally harvested Clearfield oilseed rape.

Wheat, barley, oats, oilseed rape, field beans, combining peas and sugar beet can follow normally harvested Clearfield oilseed rape treated with Cleranda.

Re-drilling in the same autumn due to crop failure.

In the event of crop failure, the following crops may be re-drilled in the same autumn following the guidance given on minimum interval and cultivation for each crop.

Following crop: Clearfield winter oilseed rape

Recommended interval prior to re-drilling: 4 weeks after application

Recommended cultivation and soil types:All soil types - Ensure the soil is well mixed prior to drilling, for example by power harrowing or using a similar cultivation technique.

Following crop:Winter field beans.

Recommended interval prior to re-drilling:10 weeks after application

Recommended cultivation and soil types: Medium to heavy soil types only. Establish using a plough-based cultivation

Following crop:Winter barley Winter wheat

Recommended interval prior to re-drilling: 8 weeks after application

Recommended cultivation and soil types:All soil types - Plough before drilling

Due to a risk of crop damage it advised that re-drilling the following crops in the same autumn should be avoided:Winter oilseed rape (except Clearfield® oilseed rape hybrids).

Re-drilling in the following spring due to crop failure in the autumn

In the event of crop failure, the following crops may be re-drilled in spring following the guidance given on soil type and cultivation for each crop

Following crop: Spring oilseed rape Spring oats Combining peas

Recommended cultivation and soil types: No requirement for specific cultivation techniques.

Following crop: Spring barley Spring wheat Sugar beet

Recommended cultivation and soil types: Light to medium soil types – No requirement for specific cultivation techniques Sands and very light soils or where irrigation may be used - Plough before drilling.

Mixing and Spraying

Application

Apply Cleranda in 190–300 l/ha water volume as a MEDIUM spray as defined by BCPC. In more dense crops where weed shading is more likely use the higher water volume.

To ensure optimum spray coverage and minimize spray drift, adjust the spray boom to the appropriate height above the crop, according to guidance provided by the sprayer and/or nozzle manufacture.

Qualified recommendation

Cleranda may be applied at up 2.0 l/ha in 100 litres of water per hectare although efficacy and crop safety at this reduced volume has not been evaluated.

Mixing

Never prepare more spray solution than is required.

Fill the spray tank three quarters full with water and start the agitation. To ensure thorough mixing of the product, invert the container several times before opening. Add the required quantity of Cleranda to the spray tank while re-circulating. If required add Dash HC and then the remainder of the water. Continue agitation until spraying is completed.

On emptying the product container, rinse container thoroughly by using an integrated pressure rinsing device or manually rinsing three times. Add washings to sprayer at time of filling and dispose of container safely.

Sprayer cleaning

Wash sprayer thoroughly immediately after use, using clean water and following best practice advice and the guidance provided by the equipment manufacturer.

Controlling volunteers from Clearfield winter oilseed rape

Best management practice is to control volunteer oilseed rape plants in the immediate following crop or prior to its establishment.

Volunteers from Clearfield winter oilseed rape can be controlled with established techniques using a combination of stale-seedbeds, non-selective herbicides, selective herbicides and cultivation methods:-

Following a Clearfield winter oilseed rape crop, post-harvest rainfall will encourage volunteer oilseed rape to germinate, therefore where possible delay any post-harvest cultivations or stubble-hygiene herbicide treatments until this has occurred.

Use a stale-seedbed technique to destroy germinated oilseed rape seedlings using an approved non-selective herbicide treatment, for example glyphosate, and/or cultivation.

Should further germination of volunteer oilseed rape occur, consider repeating the above stale-seedbed process prior to establishment of the next crop.

Should volunteer oilseed rape emerge post-harvest elsewhere within the rotation consider stale-seedbed techniques between subsequent crops.

Where it is planned for Clearfield winter oilseed rape stubble to be used as extended over-wintered stubbles/natural regeneration, volunteer Clearfield winter oilseed rape must be destroyed in time to prevent viable seeds, paying attention to agronomic guidance and/or management restrictions that may apply to the stubble maintenance.

The control of volunteers from Clearfield winter oilseed rape can be achieved within the rotation by the use of selective-herbicides, with a label claim for volunteer oilseed rape, that are not from HRAC Group B (ALS-inhibitors). The herbicides listed below are not from the HRAC Group B (ALS-inhibitors) and have been proven to control volunteers from Clearfield winter oilseed rape in succeeding winter cereals.

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