CreditPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

Contains 540 g/l glyphosate (acid equivalent) present as 715 g/l isopropylamine and ammonium salts.

A foliar applied herbicide for the control of annual and perennial grasses and broadleaved weeds before sowing or planting all crops. For use pre-emergence and pre-harvest in cereals, oilseed rape and certain other crops, destruction of grassland, and in stubbles, orchards, forestry, non-crop areas and on set-aside land.

PRODUCT BENEFITS
- Unique combination of ammonium and IPA salts for optimum performance.
- A fresh approach for the use of glyphosate.
- Flexibility to tank mix with an adjuvant of choice to get optimum results.
- Broad label.

PCS No. 02932
Pack size: 15 litres
Storage: PROTECT FROM FROST

IMPORTANT INFORMATION

Winter wheat (including durum wheat), winter barley, winter oats, spring wheat, spring barley, spring oats
Max ind. Dose + approved adjuvant: 2.67 l/ha
Max total dose per crop / situation / annum: 2.67 l/ha
Latest time of application: Seven days before harvest

Oilseed rape, Linseed, Mustard
Max ind. Dose + approved adjuvant: 2.67 l/ha
Max total dose per crop / situation / annum: 2.67 l/ha
Latest time of application: 14 days before harvest

Combining peas
Max ind. Dose + approved adjuvant: 2.67 l/ha
Max total dose per crop / situation / annum: 2.67 l/ha
Latest time of application: Seven days before harvest

Post planting and pre-emergence of listed cereals, oilseed rape, combining peas, vining peas, field beans, mustard, linseed, sugar beet, swedes, turnips, bulb onions and leeks
Max ind. Dose + approved adjuvant: 1.0 l/ha
Max total dose per crop / situation / annum: 1.0 l/ha
Latest time of application: Pre-emergence

All edible crops (stubble), All non-edible crops (stubble)
Max ind. Dose + approved adjuvant: 2.7 l/ha or 1.0 l/ha
Max total dose per crop / situation / annum: 2.7 l/ha or 1.0 l/ha
Latest time of application: Five days before drilling or planting of the following crop or Two days before drilling or planting of the following crop

Grassland
Max ind. Dose + approved adjuvant: 4.0 l/ha
Max total dose per crop / situation / annum: 4.0 l/ha
Latest time of application: Five days before harvest, grazing or drilling

Natural surfaces not intended to bear vegetation, permeable surfaces overlying soil, hard surfaces
Max ind. Dose + approved adjuvant: 4.0 l/ha
Max total dose per crop / situation / annum: -
Latest time of application: -

Amenity vegetation
Max ind. Dose + approved adjuvant: 3.33 l/ha
Max total dose per crop / situation / annum: -
Latest time of application: -

All edible and non-edible crops (destruction, before sowing/planting)
Max ind. Dose + approved adjuvant: 4.0 l/ha
Max total dose per crop / situation / annum: -
Latest time of application: Before planting or sowing

Apple and pear orchards
Max ind. Dose + approved adjuvant: 3.3 l/ha
Max total dose per crop / situation / annum: 3.33 l/ha
Latest time of application: After harvest (post leaf-fall) but before green cluster

Plum, cherry and damson orchards
Max ind. Dose + approved adjuvant: 3.3 l/ha
Max total dose per crop / situation / annum: 3.33 l/ha
Latest time of application: After harvest (post leaf-fall) but before white bud

Forest (weed control)
Forest (chemical thinning by injection)
Max ind. Dose + approved adjuvant: 6.67 l/ha
1.33 ml product per cut per#
10 cm diameter (or less) tree#

Forest (stump)
Max ind. Dose + approved adjuvant:  See ‘other specific restrictions’ #

Green cover on land not being used for crop production
Max ind. Dose + approved adjuvant: 3.33 l/ha
Max total dose per crop / situation / annum: 3.33 l/ha

Other specific restrictions:
When using with rotary atomizer knapsack sprayers the minimum water volume must be 20 l/ha (#) CREDIT does not need to be mixed with an approved adjuvant.
Weedwipers may be used in any crop where the wiper does not touch the growing crop. Maximum concentrations used must not exceed the following:
Weed-wiper mini 1:3.5 dilution with water
Other wipers 1:2 dilution with water
Stump treatment 13.33% solution in water
READ THE LABEL BEFORE USE. USING THIS PRODUCT IN A MANNER THAT IS INCONSISTENT WITH THE LABEL MAY BE AN OFFENCE. FOLLOW THE CODE OF PRACTICE FOR USING PLANT PROTECTION PRODUCTS.

Additional Safety Phrases
Do not contaminate water with the product or its container. (Do not clean application equipment near surface water/Avoid contamination via drains from farmyards and roads.)

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.

WARNINGS
TAKE EXTREME CARE TO AVOID SPRAY DRIFT.
DO NOT MIX, STORE OR APPLY CREDIT IN GALVANISED OR UNLINED STEEL CONTAINERS OR SPRAY TANKS.
DO NOT leave spray mixtures in tank for long periods and make sure tanks are WELL VENTED.

RESTRICTIONS
A period of at least 12 hours and preferably 24 hours rain free must follow spraying.
DO NOT spray onto weeds which are naturally senescent, or where growth is impaired by drought, high temperatures, a covering of dust, flooding or frost at, or immediately after application, otherwise poor control may result.
DO NOT spray in windy conditions as drift onto desired crops or vegetation could severely damage or destroy them.
As CREDIT takes a few days to fully translocate throughout a weed, applications of lime, fertiliser, farmyard manure and pesticides should be made five days or more AFTER application of this product.
Keep stock out of treated areas for seven days to allow the herbicide to become fully effective.
TREATED POISONOUS PLANT SPECIES MUST BE REMOVED BEFORE RE-GRAZING OR CONSERVING.

WEED RESISTANCE STRATEGY
There is low risk for the development of weed resistance to CREDIT.
Growers are encouraged to implement a weed resistance strategy based on (a) Good Agricultural Practices and (b) Good Plant Protection Practices by:
- Following label recommendations.
- The adoption of complementary weed control practices.
- Minimising the risk of spreading weed infestations.
- The implementation of good spraying practice to maintain effective weed control.
- Using the correct nozzles to maximise coverage.
- Application only under appropriate weather conditions.
- Monitoring performance and reporting any unexpected results to Nufarm UK Limited.

WEEDS CONTROLLED
CREDIT is a foliar acting herbicide which controls annual and perennial grasses and most broadleaved weeds when used as directed. It is translocated from treated vegetative growth to underground roots, rhizomes or stolons.
PERENNIAL GRASS WEEDS MUST HAVE A FULL EMERGENCE OF HEALTHY, GREEN LEAF WHICH IS GROWING ACTIVELY AT THE TIME OF APPLICATION. COMMON COUCH REACHES THE SUSCEPTIBLE STAGE OF GROWTH WHEN TILLERING AND NEW RHIZOME GROWTH COMMENCE WHICH USUALLY OCCURS WHEN PLANTS HAVE FOUR TO FIVE LEAVES EACH WITH 10–15 CM OF NEW GROWTH.
THE MAJORITY OF PERENNIAL BROADLEAVED WEEDS ARE MOST SUSCEPTIBLE IF TREATED WHEN THEY ARE GROWING ACTIVELY AND AT, OR NEAR, FLOWERING STAGE.
ANNUAL WEEDS SHOULD BE GROWING ACTIVELY, WITH GRASSES HAVING AT LEAST 5 CM OF LEAF AND BROADLEAVED WEEDS AT LEAST TWO EXPANDED TRUE LEAVES WHEN SPRAYED.
It is important that all weeds are at the correct growth stage when treated, otherwise some re-growth may occur and this will require re-treatment.
This product will not give acceptable levels of control of Horsetails (Equisetum arvense). Repeat treatment will be necessary.
Weeds become less susceptible to CREDIT when their growth is restricted by natural senescence or by drought, frost, high temperature, a covering of dust or flooding. Reduced control will result if such conditions occur at, or immediately after, spraying.

TANK MIXTURES
Nufarm recommends that CREDIT can be tank-mixed with the following adjuvants:
Bonus (92242)
Frigate (91690)

Where conventional hydraulic sprayers are being used:
Bonus should be added to the spray tank solution at the rate of 1.0 litre for each 100 litres water volume;
Frigate should be added to the spray tank solution at the rate of 0.5 litres for each 100 litres water volume.

GRASSLAND
Dose rate – 2.0 l/ha + approved adjuvant
Chickweed, mouse-ear
Dock, seedlings
Fescue, meadow
Foxtail, meadow
Mayweed species
Meadow grass, annual
Meadow grass, rough
Ryegrass, Italian
Speedwell species
Timothy

Dose rate – 2.67 l/ha + approved adjuvant
Bent, black
Bent, common
Bent, creeping
Brome, soft
Cocksfoot Couch, common
Dock, broadleaved
Dock, curled
Plantains
Ryegrass, perennial
Soft-grass, creeping
Yorkshire fog

Dose rate – 3.33 l/ha + approved adjuvant
Bracken**
Buttercup, creeping
Clover, red
Daisy
Hair-grass, tufted
Nettle, common
Rush, soft
Sedges
Sorrel, common
Sorrel, sheep’s
Sowthistle, perennial
Thistle, creeping
Thistle, dwarf
Thistle, spear
Yarrow

Dose rate – 4.0 l/ha + approved adjuvant
Clover, white*
Fescue, red
Fescue, sheep’s
Moor-grass, purple
Nardus (Mat grass)
Ragwort, common
Rattle, yellow
Rush, hard
Rush, heath
Rush, jointed

*Correct stage of growth at treatment is important. White clover is best cut in June and sprayed one month later.
** At full frond expansion.

Forestry Treatments
These recommended application rates refer to use in forestry areas only. If used in agricultural or horticultural situations inadequate weed control will result.

Dose
Lowland Britain – 1.0 l/ha + approved adjuvant
Upland Britain – 1.33 l/ha + approved adjuvant

Bent, black
Other Bent species
Cocksfoot
Couch, common
Fescues
Hair-grass, tufted
Hair-grass, wavy
Meadow grasses
Moor-grass, purple
Oat-grass, false
Soft-grass, creeping
Vernal, sweet
Wood, small-reed (Bush grass)

BREAKDOWN AND FOLLOWING CROPS
All edible or non-edible crops may be sown or planted at specified intervals following the use of this product.
Occasionally, a slight check to crop growth may occur, particularly after direct drilling, when crop seeds germinate amongst a mass of decaying foliage, stolons, rhizomes or roots. Thorough cultivations are necessary to disperse or bury the decaying organic matter.
Consolidate loose soils and ensure crops are adequately fertilized and appropriate measures are taken to prevent insect and fungal damage to the following crop, especially where following grassland.

CROP SPECIFIC INFORMATION
PRE-HARVEST – Wheat (including durum wheat), barley and oats
Common couch
Weed infestation and dose:
Up to 25 shoots/m2 – 1.33 l/ha
26 to 75 shoots/m2  - 2.0 l/ha
Over 75 shoots/m2 – 2.67 l/ha

Perennial broadleaved weeds, other perennial grasses
At all levels of all species use 2.67 l/ha

Harvest management
Annual grasses, Cereal stems, Cereal leaves – 0.67 l/ha
Annual broadleaved weeds – 1.0 l/ha

WATER VOLUME: Hydraulic sprayers 80–250 l/ha

Application guidance
Apply when the moisture content of the youngest crop grains is below 30%, not less than seven days before harvest and up to 14 days before harvest for volunteer wheat and wheat crops.
Use high clearance tractors with narrow wheels and crop dividers. DO NOT TREAT CROPS GROWN FOR SEED. Straw may be used for all purposes except as a horticultural mulch. After harvest, chop/incorporate or remove straw as required. Normal cultivations may be made after straw removal.
NB If dull weather persists after application, allow up to 14 days before harvest – particularly on broadleaved weeds. Annual nettle, Volunteer potato, Rosebay willowherb and the Polygonum weeds will not be susceptible at harvest management rates.

PRE-HARVEST – Oilseed rape and mustard
Crop desiccation prior to direct combine harvesting
Dose rate: 2.0 l/ha

Common couch
Up to 75 shoots/m2 – 2.0 l/ha
Over 75 shoots/m2 – 2.67 l/ha

Annual weeds
For all levels of all species – 2.0 l/ha

Perennial broadleaved weeds, other perennial grasses
For all levels of all species – 2.67 l/ha

WATER VOLUME: Hydraulic sprayers only 100–250 l/ha

Application guidance
Apply when crop seeds have under 30% moisture content. Apply to standing crops at these intervals before harvest: Oilseed rape – 14–21 days, Mustards – 14 days. Use high clearance narrow wheeled tractors using wide booms and crop dividers. DO NOT TREAT CROPS GROWN FOR SEED. For effective combining: DO NOT treat crops with significant levels of secondary re-growth. DO NOT treat late maturing areas of crops affected by pigeon damage, poor drainage, etc. Crops suffering from stress factors, disease, extreme heat or drought may not mature evenly following treatment. After harvest, chop/incorporate or remove straw as required. Normal cultivations may follow after straw removal.

PRE-HARVEST – Peas for combine harvesting
Common Couch
Up to 75 shoots/m2 – 2.0 l/ha
Over 75 shoots/m2 – 2.67 l/ha

Annual weeds
At all levels of all species – 2.0 l/ha

Perennial broadleaved weeds, other perennial grasses
At all levels of all species – 2.67 l/ha

WATER VOLUME: Hydraulic sprayers 80–250 l/ha

Application guidance
Apply when crop seeds have under 30% moisture content. Apply seven days or more before harvest. This treatment cannot be used as a crop desiccant. Use high clearance tractors with narrow wheels and crop dividers. DO NOT TREAT CROPS GROWN FOR SEED.

PRE-HARVEST – Linseed
Crop desiccation prior to direct combine harvesting
Use 2.0 l/ha

Common Couch
Up to 75 shoots/m2 – 2.0 l/ha
Over 75 shoots/m2 – 2.67 l/ha

Perennial broadleaved weeds, other perennial grasses
All levels of all species - 2.67 l/ha

WATER VOLUME: Hydraulic sprayer only 80-250 l/ha

Application guidance
Apply when crop seeds have under 30% moisture content. At this stage seed is normally light brown and the capsules are brown; the stems and leaves may be green to yellow/green. Accurate measurements of moisture content must be made. Apply 14 days or more before harvest. Where application takes place in the autumn, it must be checked that weeds are still susceptible, see earlier section on timing of application and weeds susceptibility. A delay of up to 28 days after spraying may be necessary prior to combine harvesting. DO NOT TREAT CROPS GROWN FOR SEED.

PRE-EMERGENCE OF THE CROP
Crop: Cereals, Oilseed rape, Mustard, Linseed, Peas, Field beans, Sugar beet, Swede, Turnip, Bulb onion, Leek
Weed infestation: All levels of all annual weed species
Dose rate: 1.0 l/ha
Water volume: Hydraulic sprayers only 80–250 l/ha
Application guidance: Ensure that spraying precedes ANY crop emergence

STUBBLES OF ALL CROPS – Autumn or spring
Common couch
Up to 75 shoots/m2 – 2.0 l/ha
Over 75 shoots/m2 – 2.67 l/ha

Other perennial grasses and Volunteer potatoes (autumn only)
At all levels of all species – 2.67 l/ha

WATER VOLUME: Hydraulic sprayers 80-250 l/ha

Application guidance
Do not cultivate BEFORE spraying. Allow a minimum of five days to elapse between spraying and cultivations or drilling. Allow Volunteer potatoes to make ample top growth before spraying. A minimum period of 21 days weed growth in the spring should occur before spraying.

STUBBLES OR PRE-CULTIVATED LAND – Autumn or spring applications
Volunteer cereals and other annual grasses, annual broadleaved weeds
At all levels of all species – 1.0 l/ha
WATER VOLUME: Hydraulis sprayers 80 – 250 l/ha

Application guidance
Cultivations may be made 24 hours after spraying. Direct drilling may take place two days after spraying.

SET-ASIDE – Green cover on land temporarily removed from production
Before or during removal from production
Common couch
<75 shoots/m2 – 2.0 l/ha
>75 shoots/m2 – 2.67 l/ha
Perennial broadleaved weeds and other perennial grasses – 2.67 l/ha
Annual weeds
Autumn/spring of year one only – 1.0 l/ha
Summer of year one and thereafter – 2.0 l/ha

After short rotation or long term removal from production
Natural regeneration and cover crop destruction
Annual weeds – 2.0 l/ha
Perennial grasses – 2.67 l/ha
Perennial broadleaved weeds – 3.33 l/ha

Application guidance
Perennial weeds should have grown actively for at least 21 days before spring applications.
Perennial weeds – apply not less than five days before drilling or cultivating.
Annual weeds – apply not less than 24 hours before cultivation.

NOTE:
- Ensure that all management rules are followed prior to use on land taken out of production as part of a grant aided scheme.
- Do not top or cultivate before spraying.
- Do not direct drill after set-aside.
The best control of annual grasses is achieved from applications at full ear emergence or before stem elongation. Avoid application during stem elongation as reduced control and re-spray is likely.

GRASSLAND DESTRUCTION AND CONTROL OF ASSOCIATED WEEDS
Short-rotation ryegrass with annual weeds – 2.0 l/ha
Leys two to four years old with perennial grass weeds – 2.67 l/ha
Long leys four to seven years old with perennial broadleaved weeds – 3.33 l/ha
Permanent pasture – select application rate to control the least susceptible target weed – 4.0 l/ha

Application guidance
DO NOT apply lime or fertiliser prior to CREDIT application.

Treatment timings
1. Re-growth after grazing or mowing.
2. Before grazing or cutting.
– Apply between June–October.
– Spray crops that are 30–60 cm tall, are not dense and do not contain mature seeds.

Grass utilisation
1. Grass may be utilised in the normal way from five days after treatment.
2. Cattle, dairy cows and sheep may graze or be fed the treated forage.
POISONOUS PLANT SPECIES MUST BE REMOVED OR BURIED BEFORE RE-GRAZING OR MOWING.
Normal cultivations for the next crop may be made as usual once fields are cleared of grass crops. Grass and clover may be direct drilled following application of CREDIT to: (a) One – two year old leys without mat: all surface trash should be removed before drilling, five days after spraying, or (b) long leys with some mat: CREDIT should be applied in the autumn and direct drilling delayed until the following spring.

LAND NOT INTENDED TO BEAR VEGETATION
Annual weeds – 1.0 l/ha
Perennial grasses – 2.67 l/ha
Perennial broadleaved weeds. Destruction of established vegetation prior to sowing (refer to section ‘hand-held applicators’) – 4.0 l/ha

Application guidance
Use areas include: Clearance of land prior to sowing, weed control in fence lines, stockyards, around buildings and storage areas, roads paths and ditch edges, re-growth in root crop storage areas. DO NOT USE IN OR ALONGSIDE HEDGEROWS. DO NOT USE UNDER GLASS OR POLYETHYLENE.

AMENITY VEGETATION
Annual weeds – 1.0 l/ha
Perennial grasses and broadleaved weeds – 2.67 – 3.33 l/ha

Water volume: Hydraulic sprayers 80 – 250 l/ha

Application guidance
For vegetation management in areas of semi natural or ornamental vegetation including trees, areas of bare soil around ornamental plants or areas intended for ornamental planting. Hydraulic sprayers or weed wipers may be used.
DO NOT USE IN OR ALONGSIDE HEDGEROWS.
DO NOT USE UNDER POLYTHENE OR GLASS.

TOP FRUIT ORCHARDS – Pre-planting
Perennial grasses and broadleaved weeds:
Arable stubbles – 2.67 l/ha
Pastures – 3.33 l/ha

WATER VOLUME: Hydraulic sprayers 80 – 250 l/ha

Application guidance
Refer to Timing of Application. All top fruit crops may be planted from seven days after spraying.

TOP FRUIT ORCHARDS – Within orchards of apple, pear, plum, cherry or damson
Perennial grasses and broadleaved weeds
All levels, most species – 3.33 l/ha

Root suckers (late spring treatment only)
All species – 3.33 l/ha

WATER VOLUME: Hydraulic sprayers 200 – 400 l/ha, Optimum 250 l/ha

Application guidance
Trees must have been established for two years before spraying. Spray after fruit trees have lost all their leaves in autumn, or before green clusters stage of apple and pear or white bud stage of stone fruit in spring. Avoid contact with tree branches and trunks above 30 cm from the ground.

FORESTRY – Pre-planting
Arable land and planting
Arabe weeds – 2.67 l/ha

Re-planting and grassland areas
Grassland weeds – 3.33 l/ha

Application guidance:
All tree species may be planted seven days or more after treatment

FORESTRY – Post-planting – directed
Clean-up around trees with knapsack applications Conifer release
Grasses: annual and perennial, and broadleaved weeds – 2.7
Woody weeds: Beech Bracken, Brambles Brush, Hazel Oak Sycamore, Ash Willow – 2.0 l/ha
Heather (peat soils) – 2.67
Heather (mineral soils) – 4.0 l/ha
Rhododendron - 6.67
Water volume: Knapsack sprayers (hydraulic). Apply at a concentration of one part of CREDIT with 200– 250 litres of water per hectare. Spot gun and Weedwiper mini – see Application section

Application guidance
It is ESSENTIAL to use a TREE GUARD for all applications made in the growing season. Treat bracken after frond tips are unfurled but pre-senescence. Treat Heather late August to end September. All other woody weeds – treat June–August before leaf senescence (but after new growth of crop has hardened).
# for improved control of Rhododendron add High Trees Mixture B at a concentration of 2% final water volume to 5.33 l/ha of CREDIT. For Rhododendron control cut back and treat re-growth at least one metre in height throughout the entire coppice.

FORESTRY – Post-planting (overall dormant season)
Grass weeds:
Lowland areas – 1.0 l/ha
Upland areas – 1.33 l/ha

Beech Bracken and Birch
At all levels of all species – 1.33 l/ha

Bramboles
At all levels of al species – 2.0 l/ha

WATER VOLUME: Hydraulic sprayers 80–250 l/ha or hand-held equipment – see Application section.

Application guidance
DO NOT OVERALL SPRAY trees being grown for ORNAMENTAL PURPOSES, including CHRISTMAS TREES. Species safe to spray when fully dormant and leader growth has hardened: Corsican, Lodgepole and Scots pines, Norway spruce, Sitka spruce, Lawson cypress, Western red cedar. Douglas fir and Nobel fir – safe to spray when fully dormant and leader growth has hardened but NOT in spring. If overall application takes place after the optimum timing weed control may be reduced. It is advisable to spray a limited area of forest to test crop safety under local conditions before widespread overall application in subsequent years. Treat bracken after frond tips are unfurled but pre-senescence.
CAUTION: the timing of hardening of leader growth varies between locations and seasons. It may occur as early as the end of July or be delayed to October or later. To avoid damage to Lammas growth, sprays should be directed away from leaders.

FORESTRY – Stump application for chemical thinning
Deciduous species: 6.6% solution of CREDIT in water
Coniferous species: 13.3% solution of CREDIT in water
WATER VOLUME: Hydraulic sprayers 80–250 l/ha or hand-held equipment – see Application section

For stump application CREDIT does not need to be mixed with an adjuvant.

Application guidance
Apply to saturate the freshly cut stump. (See Hand-held sprayers.)
– Clearing saw fitted with Enso attachments.
– Knapsack sprayer operated at low pressure.
– Spot gun fitted with a solid stream nozzle.
– Paintbrush.
Treat stumps within a week of felling from November to March (outside spring sap flow). Do not cut trenches or drill holes and fill with the solution or use undiluted product.

FORESTRY – Chemical thinning by injection of tree stumps
Coniferious and Deciduous Species - 1.33 ml neat CREDIT per cut per 10 cm diameter of stem (or less)
For stump application CREDIT does not need to be mixed with an adjuvant.

Application guidance
Use a hatchet to cut one notch in trees up to 10 cm diameter and apply 1.33 ml of the solution to each cut e.g. using a spot gun. Use two or three notches in trees over 10 cm diameter. Do not treat in the period of active sap flow in the spring/early summer.

SPRAY APPLICATION EQUIPMENT AND TECHNIQUES
Tractor mounted applicators
Conventional hydraulic sprayers
Sprayer and nozzle selection
All machines capable of applying accurately 80–250 l/ha, as a MEDIUM or COARSE quality spray – (BCPC definition) within a pressure range of 1.5–2.5 bars using 80° or 110° nozzles, may be used. For application pre-harvest of crops it is essential to use a sprayer whose boom may be raised to the correct height.
Water volume
For general use 200–250 l/ha is the preferred volume range. For specific uses, volumes may be reduced to 80–120 l/ha by selecting low volume hydraulic nozzles and adjusting pressure of application and tractor forward speed.
Spray pressure
Pressures must be related to tractor forward speed, desired water volume and nozzle type. A range of 1.5–2.5 bars must be used to ensure optimum results with minimum risk of drift.
Tractor forward speed
Speed of travel must be related to nozzle output characteristics. The typical range is from 4–9 kph. The slower speeds should be selected for applications pre-harvest of crops and where soil conditions could cause excessive boom bounce and yaw at the faster speeds.
Recommended nozzle type, pressure, volumes and tractor speeds for the application of 80–120 l/ha
80° or 110° nozzles able to apply the required volume at pressures between 1.5–2.5 bars at between 4–9 kph are recommended. Examples of these nozzles are available in a separate handbook.
Filling the sprayer
Half fill the spray tank with water and start agitation. Add recommended quantity of CREDIT herbicide, top-up tank with water to required level. Before using a sprayer and, especially, after nozzles have been changed, it is essential to calibrate the sprayer by checking the output of at least one nozzle for each separate boom section of the sprayer.
Calibration
Before using the sprayer and, especially, after nozzles have been changed, it is essential to calibrate the sprayer by checking the output of at least one nozzle for each separate boom section of the sprayer.
Operation in the field
Check the following before starting to spray: that the nozzles are aligned evenly at the correct angle to the direction of travel; that the boom is level over its width; that the boom height permits the correct pattern of spray overlap on the target weeds.
Sprayer maintenance
Ensure that the sprayer is in good working order by paying particular attention to the condition of the pump, hoses, nozzles or disc assemblies and pressure gauge. Replace damaged, worn or malfunctioning parts. If extra filtration or pressure damp valves have been fitted for low volume work at 80–120 l/ha make certain this equipment is clean and functioning correctly. Carry out maintenance according to the instructions of the sprayer manufacturer. This is of utmost importance when using low volume nozzles.
Hygiene when using all sprayers
It is essential to thoroughly clean out sprayer tanks, pumps and pipelines and nozzle or disc assemblies, with a recommended detergent cleaner, between applying this product and other pesticides to avoid contamination from pesticide residues.

HAND-HELD APPLICATORS
Overall, non-selective applications:
Spot or directed application:
Knapsack applicator:
These may be used in forestry, orchards and non-crop areas. Normal water volume is 200–300 l/ha but by fitting low volume nozzles it can be reduced to 100–150 l/ha. All applications to be as a MEDIUM or COARSE quality spray (BCPC definition).
Example of use: At a walking speed of 1.0 m/sec and with a one metre wide swath most knapsack sprayers fitted with a Lurmark AN 2.0 or similar nozzle deliver 200 l/ha spray volume. To apply 2.67 l/ha of CREDIT use 26 ml of product for each two litres of spray liquid required.
Spot Gun
This applicator may be used to apply an accurately measured dose of CREDIT herbicide spray solution for the spot treatment of weeds.
Amount of CREDIT (ml) per five litres of spray solution when the Spot Gun is fitted with the TGSS2.8W nozzle, using a setting of 5 ml per squeeze of the trigger:
Spot diameter: 0.3m
Dose rate: 2.0 l/ha – 80, 2.67 l/ha – 100, 3.3 l/ha – 150
Spot diameter: 1.0
Dose rate: 2.0 l/ha – 120, 2.67 l/ha – 160, 3.3 l/ha – 240

Treatment of individual weeds
Individual weeds may be treated using the Spot Gun fitted with a narrow angle cone nozzle, either the TG-3 or TG-5 nozzle. The spot diameter will increase with the distance of the target weed from the nozzle tip.
Amount of CREDIT (ml) per five litres of spray solution when the Spot Gun is fitted with the TG- 3 or TG-5 nozzle, using a setting of 5 ml per squeeze of the trigger:
Spot diameter: 0.3m
Dose rate: 2.0 l/ha – 13, 2.67 l/ha – 19, 3.3 l/ha – 23
Spot diameter: 0.6m
Dose rate: 2.0 l/ha – 57, 2.67 l/ha – 73, 3.3 l/ha – 93

Tree injection
The applicator must be fitted with a solid stream nozzle, either a Spraying System 0006 or a Delavan LF 6.0. Set the gun to apply 1.33 ml of neat CREDIT per cut.
Stump treatments
The applicator must be fitted with a narrow angle cone nozzle, either the TG-3 or TG-5 or solid stream nozzle tips either a Delavan LF 6.0 or Spraying Systems 0006. Set the gun to deliver 3.33 ml per squeeze and select the concentration of CREDIT according to usage recommendations. A dose of 3.33 ml should be applied for each 5 cm diameter of tree stump.
Cut stump application
Enso attachment to rotary saws
This technique is specific to scrub clearance in Forestry. The water soluble dye Methyl Violet Gurr may be added to CREDIT at a concentration of 0.01% to help identify treated stumps. This is equivalent to the addition of 1ml of dye to 10 litres of spray liquid.
Tractor mounted wipers
Treatment of sugar beet bolters, weed beet and other weeds: For use in arable crops, grassland and forestry areas. Ensure there is at least 5 cm between the top of the tallest desired vegetation and the impregnated wiper. Weeds should be a minimum of 10 cm taller than the desired vegetation for safe application. Two passes in opposite directions will be needed where weeds are dense and successive applications will be required to control weeds that were below the original wiping level. Treat before weed seeds have matured to reduce to a minimum seed return to the soil. Bolting beet should be treated by a series of three applications during early July to early August with two weeks between treatments.
WEEDS MUST BE GROWING ACTIVELY TO BE SUSCEPTIBLE. DO NOT USE WIPER TECHNIQUES IN SOFT FRUIT CROPS.
Recommended machines and dilution rates
Hectaspan Weedwiper
Tecnoma Top Weeder
Keenan Weed Licker
Telford Homburg Chemical Applicator
Matrot Mobilcord
Vicon Wedge-Wik
The recommended concentration is at least one part of CREDIT herbicide to two parts water. Under hot, dry conditions a concentration of one part of CREDIT herbicide to two parts water is preferred.
For best results with all wiper applicators:
- Operate at speeds below 5 kph.
- Treat when weeds reach 10 cm above the desired vegetation.
- Keep wiping surfaces wet but prevent dripping.
- Clean ropes several times a day to maintain optimum flow rate.

Credit is a registered trademark of Nufarm