Rapport 500 SC
A herbicide for broadleaved weed control and some grass weed control In winter and spring oilseed rape, swedes, turnips, and other named brassicae. A suspension concentrate (SC) containing 500 g/l (43.1% w/w) metazachlor.
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.
Restrictions and warnings
RAPPORT 500 SC is suitable for use on all soil types as defi ned in the Soil Texture (85) System, except sands and very light soils and soils containing more than 10% organic matter.
Useful weed control can be obtained on soils with an organic matter higher than 10% but it may decrease as the percentage of organic matter increases appreciably.
With drilled crops, when applying RAPPORT 500 SC pre-emergence, it is important for crop safety to ensure physical separation of the herbicide from the seed. This is achieved by ensuring that the seed is well covered with soil, to a depth of 15 mm. With direct-drilled crops, harrow across slits to cover the seed before spraying RAPPORT 500 SC. Ensure that transplants are correctly planted with the roots well covered. Loose and puffy seedbeds must be consolidated before treatment.
1. A reduction in crop vigour, weed control and possibly plant stand may occur with excessive rainfall shortly after application. If heavy irrigation is planned after transplanting, apply RAPPORT 500 SC after irrigating. Where a crop check has occurred this usually grows out after a few weeks and yields are normally unaffected.
2. Do not apply RAPPORT 500 SC to soils with a compaction layer or to poorly drained soils, since damage can occur under waterlogged conditions.
3. If RAPPORT 500 SC is applied onto a dry soil surface it will only be effective after rainfall has occurred. Light (10 mm at any one time) irrigation will help to ensure herbicidal activity. Post- emergence weed control is also dependent on adequate moisture.
4. On brashy and stony soils, RAPPORT 500 SC may cause some reduction in crop vigour and/or plant stand, due to the chemical moving down to the rooting zone too rapidly.
5. Do not overlap spray swaths, particularly on the headlands.
6. Do not treat crops, which are suffering from wilting, pests or diseases or badly planted transplants.
7. When used alone RAPPORT 500 SC has very little dewaxing activity. However, under frosty conditions a transient scorch may sometimes occur. Do not use RAPPORT 500 SC in tank mixtures under frosty conditions.
1.3. Important notes
1. Avoid spray drift on to neighbouring crops.
2. Do not use fi lters fi ner than 50 mesh.
3. WASH EQUIPMENT thoroughly immediately after use. Fill the tank with clean water and leave overnight. Spray out before storage or using other products. Traces of the product may cause damage to susceptible crops sprayed later.
RAPPORT 500 SC is a residual herbicide which can be used in all varieties of winter and spring sown oilseed rape, swedes, turnips, cabbages, Brussels sprouts, caulifl owers, broccoli and calabrese. Herbicidal activity is dependent upon root uptake.
Apply as a MEDIUM spray, as defi ned by BCPC.
Crop specifi c information
1.4 Winter oilseed rape
Time of application
RAPPORT 500 SC may be applied pre-emergence, post-emergence or by a split dose technique, depending on soil type, the seedbed conditions and weed spectrum, see below. Do not use later than the end of January.
1.4.1. Pre-emergence use
On medium and heavy soils where seedbeds are moist, fi rm and free from clods, RAPPORT 500 SC should be applied from drilling up until the crop seed chits. In warm soils, this may occur within 48 hours of drilling.
DO NOT USE the full rate pre-emergence recommendation when any of the following conditions apply:
When heavy rain is forecast.
Dry cloddy seedbeds.
Late drilled crops – as a guide these are crops drilled later than the fi rst week in September for Northern areas and later than mid-September for the rest of the country.
Stony soils i.e. stones, fl ints or chalk, readily visible on the soil surface.
DO NOT USE on broadcast crops.
1.4.2. Early post-emergence use
RAPPORT 500 SC can be used on light, medium or heavy soils post-emergence, once the majority of the crop has reached the fully expanded cotyledon stage, providing weeds are not beyond their maximum susceptible growth stage (see weed susceptibility section and note moisture requirement).
Post-emergence application of RAPPORT 500 SC is recommended if:
Seedbed conditions are not ideal for the pre-emergence use.
The seed is not covered with 15 mm of soil (as with broadcast crops).
RAPPORT 500 SC could not be applied before the crop seed chits.
Light soils, or all recommended soils which are stony, brashy or gravely, are to be treated, particularly if heavy rainfall has been forecast for the period following drilling.
Late drilled crops are to be treated.
1.4.3. Rates of application for pre- or post-emergence
Apply 1.5 litres RAPPORT 500 SC per hectare, pre- or post-emergence.
When applying RAPPORT 500 SC pre-emergence in tank mixture or whenever applying RAPPORT 500 SC post-emergence, use a minimum water volume of 220 litres per hectare.
RAPPORT 500 SC can be applied in water volumes of 100 litres per hectare when used preemergence, but should not be used on poor seedbeds nor in tank mixture with other products at this water volume. When using this low water volume, fan or hollow cone nozzles designed to operate at normal pressure, 2-3 bar or low pressure fan nozzles designed to operate at around 1 bar, producing a coarser spray, may be used.
Ideal conditions are mild and moist when weeds are actively growing and before the crop starts to shield the weeds
Foliage should be dry at the time of application. Do not spray if rain is expected within the following four hours or during windy conditions, or if the foliage is frost covered.
Under cold, dry conditions or in poor non-competitive crops, weed control is likely to be less effective.
If weeds are shielded by the crop or by grass/volunteers at application, control may only be partial, resulting in regrowth. Where grass weeds or volunteers are likely to be a problem then they are best removed early on with a graminicide.
1. RAPPORT 500 SC will give moderate control of cleavers when applied at any of the recommended timings, provided that the weeds have not emerged at the time of application and adequate soil moisture is present.
2. Approved herbicides may follow a pre- or early post-emergence application of RAPPORT 500 SC, provided that the crop is undamaged and showing no adverse symptoms.
1.5. Swedes, turnips, transplanted brassicae and spring oilseed rape
One application of 1.5 litres per hectare RAPPORT 500 SC is recommended in these crops. Apply RAPPORT 500 SC in 220-450 litres of water per hectare. Use the higher water volume where seedbeds are not ideal (i.e. slightly cloddy).
RAPPORT 500 SC should be applied after drilling to seedbeds that are fi rm, moist and free from clods before the crop seed chits. This may occur within 48 hours of drilling in warm soils. DO NOT treat if heavy rain is forecast as heavy rain before emergence may reduce crop stand.
Spring oilseed rape
The latest time of application of Rapport 500 SC to spring oilseed rape is pre-emergence of the crop.
Swedes and turnips
The latest time of application of RAPPORT 500 SC is pre-emergence in these crops.
When treating transplants, ensure that the roots are well covered with soil and that the plants are adequately hardened off and established prior to treatment. If necessary, use irrigation to help establish the plants and raise soil moisture before treatment with RAPPORT 500 SC. Apply once the transplants have established but before weed emergence as an overall surface applied spray to a soil, which is moist, fi rm and free from clods.
Modular or block raised transplants can be particularly sensitive to herbicide damage because they are often both soft and immature. It is essential that the full directions concerning transplants are followed in full and it is advisable to only treat a small area in the fi rst instance. Avoid spraying transplants when very warm days and cool nights are expected.
The latest time of application of RAPPORT 500 SC is 6 weeks before harvest in transplanted brassicae.
1.6. Direct drilled brassicae
To prolong weed control in direct drilled cabbages, Brussels sprouts, caulifl ower, broccoli or calabrese, one application of RAPPORT 500 SC can be made post-emergence of the crop, following the use of an alternative pre-emergence treatment.
1.6.1. Time of application
Apply RAPPORT 500 SC after the crops have 3-4 true leaves but before weed emergence. Do not treat crops within 6 weeks of harvesting.
1.6.2. Rate of application
Apply 1.5 litres RAPPORT 500 SC in 220-450 litres of water per hectare.
1. Any crop can follow normally harvested winter oilseed rape treated with RAPPORT 500 SC and ploughing is not essential before sowing the following cereal crop.
2. In the event of a crop failing in the autumn or winter, then several crops can be drilled after the use of RAPPORT 500 SC alone as follows:
Redrilling the same autumn - Winter Wheat (excluding Durum) or Winter Barley: After ploughing to a depth of at least 150 mm.
Redrilling the following spring
After ploughing, the following crops can be sown:
Transplanted or direct drilled Brassicae
Cereals (excluding Durum wheat)
3. Following spring applications to swedes, turnips or brassicae, crops particularly sensitive to RAPPORT 500 SC, e.g. carrots, parsnips, onions and lettuce, should not be planted within 5 months of treatment. Plough to a depth of at least 150 mm before sowing or planting any succeeding crop.
Mixing and spraying
SHAKE WELL BEFORE USE. Half fi ll the spray tank with clean water and start the agitation. Pour in the required amount of RAPPORT 500 SC. Add the remainder of the water and continue agitation until spraying is completed.
Rinse empty containers thoroughly, and add rinsings to the sprayer tank.
When tank mixes are to be used, each product should be added separately to the spray tank, taking due note of any instructions given as to the order of mixing.
RAPPORT 500 SC is compatible with most of the common used agrochemicals. To avoid all problems, we advise to do a small compatibility test before mixing with other agrochemicals or fertilisers.
Strains of some annual grasses (e.g. 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, CPA, your distributor, crop adviser or product manufacturer
|Registered for cultures||Rate||Preharvest Interval|
|Winter rape||1.5 l|
|Spring rape||1.5 l|
|Brussels sprouts||1.5 l||42|