Clinic Ace Leaflet/Guide to Use - Nufarm · A foliar applied herbicide for the control of annual and perennial grass and broadleaved weeds before sowing or planting all crops. For

A foliar applied herbicide for the control of annual and perennial grass and broadleaved weeds before sowing or planting all crops. For use pre-harvest in cereals and certain other crops, destruction of grassland, and in stubbles, orchards, green cover on land not being used for production, forestry and non-crop areas.

Guide

CLINIC ACE

Contents

A guide to CLINIC ACE 1

Mode of action

How to get the best from CLINIC ACE

Use of adjuvants

Specific weed problems 2

Couch grass and other perennial grasses

Onion couch (False oat grass)

Perennial broadleaved weeds

Thistles, Docks, Rosebay willow herb

Annual grasses and volunteer cereals

Annual broadleaved weeds, Weed beet

Volunteer oilseed rape

Volunteer potatoes

Crop specific information 6

Recommendation tables 10

Guide to grassland destruction 13

Spraying 16

Stewardship 16

Not all uses such as forestry and amenity uses are fully covered in this leaflet.

Please visit the Nufarm website www.nufarm.com/uk for a full copy of the label.

Mode of actionCLINIC ACE contains glyphosate, a foliar acting total weedkiller. Once sprayed onto the leaf CLINIC ACE enters the plant and is translocated throughout the plant to the leaves, stem and root system. Glyphosate blocks several important biological processes resulting in the gradual decline and death of the plant. Death can take up to four weeks. Broadleaved weeds generally take longer to die than grass weeds. On contact with soil or river bed silt the product is inactivated.

How to get the best from CLINIC ACE • Always allow a good drying period for CLINIC ACE. Ideally there should be a minimum

of six hours of dry conditions after spraying.

• Do not spray onto weeds which are already dying back due to natural senescence, drought or extreme hot temperatures.

• Perennial grasses such as Couch must be healthy, actively growing with five leaves and 10 cm or more of new growth.

• Broadleaved weeds must have at least two expanded true leaves and be actively growing.

• Annual grasses must have at least 5 cm of leaf and be actively growing.

• Avoid prolonged frosty weather where weed growth has been completely halted. CLINIC ACE can be used where frosts are light and intermittent.

• Cool, humid, dull autumn conditions favour the use of CLINIC ACE.

Use of adjuvantsCLINIC ACE contains its own adjuvant system for general use, allowing the product to work very effectively in most situations. There are circumstances where the use of an adjuvant can improve rain fastness, speed of activity or efficacy of CLINIC ACE. This is particularly the case in forestry uses.

In general where the rate of use of CLINIC ACE falls below 2.0 l/ha, the amount of adjuvant falls and CLINIC ACE can benefit from the addition of an approved adjuvant. For use in certain situations, such as preharvest the rate of use of CLINIC ACE is restricted to half the maximum recommended dose rate when tank-mixed with an adjuvant.

Contact your local distributor for advice on using adjuvants.

Guide for use of CLINIC ACE in Agriculture

1

Specific weed problems

Couch grass and other perennial grassesDose rate 2.0 – 4.0 l/ha

Use no less than 2.0 l/ha, preferably 3.0 l/ha of CLINIC ACE for low infestations of Couch and up to 4.0 l/ha for high infestations of 75 shoots per square metre or more.

For Couch control in any situation in autumn or spring, new stolon growth must have begun with shoots at least 10 cm high or across for control to be effective. The optimum timing for all perennial grass weeds is when they are coming into flower.

Onion couch (False oat grass)Dose rate 4.0 l/ha

Onion couch tends to mature earlier than Couch grass. The most effective control is obtained when CLINIC ACE is applied as a pre-harvest treatment in early maturing crops such as winter barley and oilseed rape. In winter wheat Onion couch is often too mature to be controlled effectively. A full rate of 4.0 l/ha will be needed for good control. In common with most perennial grasses, control is always better when applied to weeds coming into ear when there is a large surface area of green tissue to take in the chemical.

Couch in stubbleCouch growth following cultivation

The characteristic bubble found onthe root system of Onion couch.

2

Perennial broadleaved weeds - Thistles, Docks, Rosebay willow herbDose rate 4.0 l/ha

Perennial broadleaved weeds must always be green at the time of application. The ideal time to control Thistles and Rosebay willow herb and most perennial weeds with CLINIC ACE is just after the weeds have finished flowering. Pre-harvest is therefore the best time to control these weeds as the leaves are green and there is better movement of the product down to the root system. There is also the added benefit of preventing the production of viable seeds.

Docks need to be at least 15–20 cm across or tall for best control. Apply CLINIC ACE to Docks no later than the flowering stage as post flowering application will be less effective. Avoid using additional adjuvants as they can have a negative effect on Dock control by killing off the top growth too quickly without allowing the CLINIC ACE to get to the root.

Docks at about the ideal stage for treatment with CLINIC ACE

Thistles in a mature wheat crop.Pre-harvest is a good time tocontrol this weed

3

Annual grasses and volunteer cerealsDose rate 1.5 l/ha

Annual grasses such as Blackgrass or Annual meadow grass can be tackled at a number of timings. Annual grasses must be at least 5 cm tall or poor control may occur. In April and May control of Blackgrass can be unreliable. Blackgrass in particular is best tackled when it has just come up to flowering or heading (usually the first half or June). This will prevent viable seeds from forming.

If Blackgrass fields are showing increased levels of resistance to herbicides, the use of CLINIC ACE on pre-cultivated land is an ideal way of controlling the weed prior to drilling and reduces the cost of later applications of selective Blackgrass herbicides in the growing crop.

Annual broadleaved weeds, Weed beetDose rate 1.5 l/ha

In any situation broadleaved weeds must have at least two expanded true leaves at application. Coarse sprays may not be effective when weeds are very small. At the rate 1.0 l/ha for harvest management many broadleaved weeds will not be controlled.

Specific weed problems

Black bindweed in wheat

Blackgrass in cultivated soil

Annual nettle at the minimum sizefor treatment

4

Volunteer oilseed rapeDose rate 1.5 l/ha plus adjuvant

This is one of the most difficult problem weeds to control. The 1.5 l/ha rate for other annual weeds is normally insufficient to kill Volunteer oilseed rape reliably. The use of an adjuvant is always recommended. If perennial grass or broadleaved weeds are present in addition to Volunteer oilseed rape the 3.0 l/ha rate required to control these weeds will be adequate to control Volunteer oilseed rape.

Volunteer potatoesDose rate 4.0 l/ha

A good time to control this problem is in stubbles. Ideally marblesized tubers should have developed for best control. There should be good top growth. Apply at the maximum rate of 4.0 l/ha. Ideally this should be whilst the soil and weather conditions are still relatively warm. There are also tank mixes available especially for use on set aside. Contact your distributor for details.

5

Use only as an agricultural/horticultural/forestry/industrial herbicide

Crop specifications Maximum individual dose

Maximum total dose dose/

crop/situation/annum

Latest time of application

Winter wheat, winter barley, winter oats, spring wheat, spring barley, spring oats, durum wheat,combining peas, field beans

4.0 l/ha 4.0 l/ha Seven days before harvest

Oilseed rape and linseed 4.0 l/ha 4.0 l/ha 14 days before harvest

Mustard 4.0 l/ha 4.0 l/ha Eight 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

1.5 l/ha 1.5 l/ha Pre-emergence of the crop

All edible crops and all nonedible crops (stubble) either:

or:

4.0 l/ha

1.5 l/ha

4.0 l/ha

1.5 l/ha

Five days before drilling or planting of the crop

Two days before drilling or planting of the following crop

Grassland 6.0 l/ha 6.0 l/ha Five days before harvest, grazing or drilling

Natural surfaces not intended to bear vegetation, permeable surfaces overlaying soil, hard surfaces

5.0 l/ha - -

Amenity vegetation 5.0 l/ha - -

Crop specific information

6

All edible and non-edible crops (Destruction before sowing or planting)

5.0 l/ha - Before planting or sowing

Apple and pear orchards 5.0 l/ha 5.0 l/ha After harvest but before green cluster stage

Cherry, plum and damson orchards

5.0 l/ha 5.0 l/ha After harvest but before white bud stage

Green cover on land not being used forproduction, e.g. set aside

6.0 l/ha 6.0 l/ha 24 hours before cultivating

Forestry nursery, forest:• Weed control

• Chemical thinning (by injection)

• Stump application

1.0 l/ha

2 ml per cut per 10 cm diameter (or less) tree

The maximum concentration must not exceed 250 g per litre of water.

• When applying through rotary atomizers the spray droplet vectra must be of a minimum Volume Median Diameter (VMD) of 200 microns.

• Weed wipers may be used in any crop where the wiper or chemical does not touch the growing crop. Maximum concentrations must not exceed: Weed wiper mini: 1:2 dilution with water. Other wipers: 1:1 dilution with water.

• When using with hydraulic knapsack sprayers the maximum individual dose must not exceed 22.5 g/l glyphosate (equivalent to a maximum individual dose of 5.0 l/ha in 80 litres of water per hectare).

• When using with rotary atomizer knapsack sprayers the minimum water volume must be 40 l/ha.

READ ALL OTHER SAFETY PRECAUTIONS AND DIRECTIONS FOR USE BEFORE USE.

All varieties of wheat (including durum wheat), barley and oats may be treated to gain harvesting and grain storage benefits resulting from the reduction of green material in the crop.

7

Recommendation tables

Pre-harvest arable crops

Target weed/usage

Crop/situation Weed infestation Dose rate Water volume

Common couch

Wheat (including durum), barley, oats

Oilseed rape and mustards

Peas for combine harvesting and field beans

Linseed

Up to 25 shoots/m2

26 to 75 shoots/m2

Over 75 shoots/m2 in direct drilled crops

Up to 75 shoots/m2

Over 75 shoots/m2

Up to 75 shoots/m2

Over 75 shoots/m2

Up to 75 shoots/m2

Over 75 shoots/m2

2.0 l/ha3.0 l/ha4.0 l/ha

3.0 l/ha4.0 l/ha

3.0 l/ha4.0 l/ha

3.0 l/ha4.0 l/ha

Hydraulic sprayers 80–250 l/ha#

or Rotary atomisers 40 l/ha*

Hydraulic sprayers only 100–250 l/ha#

Hydraulic sprayers 80–250 l/haor Rotary atomisers 40 l/ha*

Hydraulic sprayers 80–250 l/ha

Perennialbroadleaved weeds, other perennialgrasses




Linseed

All levels of all species




4.0 l/ha

4.0 l/ha

4.0 l/ha

4.0 l/ha



Hydraulic sprayers only 100–250 l/ha#

Hydraulic sprayers 80–250 l/haor Rotary atomisers 40 l/ha*


Annual grasses, cereal stems, cereal leaves (harvestmanagement)



1.0 l/ha Hydraulic sprayers 80–250 l/ha#


8

Annual broad-leavedweeds –(harvestmanagement)



1.5 l/ha Hydraulic sprayers 80–250 l/ha#


Annual weeds Oilseed rape and mustards


3.0 l/ha Hydraulic sprayers only 100–250 l/ha#

Crop desiccation prior to direct combine harvesting(harvest management)


Linseed

-

-

3.0 l/ha

3.0 l/ha


* Where rotary atomiser sprayers are used, their droplet diameter must fall within the range 200–300 μm.# Use higher volumes for dense canopies.

Application and timing guidance

Pre-harvest CLINIC ACE in cerealsChoose an appropriate rate for any weeds that need to be controlled. If harvest management is the main target and weeds are not a major issue, an application of 1.0 l/ha should be applied between 7 and 14 days before harvest.

Apply 2.0 - 4.0 l/ha at least 10 days before harvest if perennial weeds are a primary target.

Annual nettle, Volunteer Potatoes, Rosebay willowherb and Polygonums will not be controlled at the harvest management rate of 1.0 l/ha.

Do not apply pre-harvest to any crop which is grown for seed. Straw can be used for all purposes except a horticultural mulch.

Wheat not yet ready for pre-harvestCLINIC ACE. Grain moisture content must be less than 30%

A crop of lodged wheat wherean application of CLINIC ACE for harvest management purposes may reduce drying costs and harvesting problems

Grain ready for pre-harvest CLINIC ACE (the hard dough stage – a thumbnail should leave an impression on the grain)

9

Application and timing guidance/continued

Oilseed rape and mustards• Apply when crop seeds have less than 30% moisture content.• Apply to standing crops at these intervals before harvest:

Oilseed rape 14–21 days Mustards 8–10 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

regrowth. DO NOT treat late maturing areas of crops caused by pigeon damage, poor drainage, etc.

• Crops suffering from stress, 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.


• Apply when crop seeds have less than 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.

Linseed• Apply when crop seeds have less than 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.

• A delay of up to 28 days after spraying may be necessary prior to combine harvesting.• Where application takes place late in the autumn, it must be checked that weeds are still

susceptible. See earlier section on weed control. • DO NOT TREAT CROPS GROWN FOR SEED.


10

11Stubbles

Target weed/usage

Crop/situation Weed infestation

Dose rate Water volume

Common couch

Other perennial grasses

Volunteer potatoes (autumn only)

Before all crops – autumn/spring applications

Up to 75 shoots/m2

Over 75 shoots/m2


-

3.0 l/ha

4.0 l/ha

4.0 l/ha

4.0 l/ha



* Where rotary atomiser sprayers are used, their droplet diameter must fall within the range 200–300μm.


• 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.• Allow seven days before planting trees.


Stubbles or pre-cultivated land

Target weed/usage


Volunteer cereals

Other annual grasses

Annual broad-leaved weeds

Before all crops autumn or spring applications


1.5 l/ha Hydraulic sprayers 80–250 l/haor Rotary atomisers 40 l/ha*

* Where rotary atomiser sprayers are used, their droplet diameter must fall within the range 200–300μm.


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

Post sowing/planting and pre-emergence of the crop

Target weed/usage


Volunteer cereals and annual weeds

Listed cereals, oilseed rape, combining peas, vining peas, field beans, mustard, linseed, sugar beet, swedes, turnips, bulb onions and leeks


1.5 l/ha Hydraulic sprayers 80–250 l/ha

Ensure that spraying precedes ANY Crop emergence

12

Application and timing guidance• Select application rate to control

least susceptible target weeds by selecting from application rate table page 16.

• ONLY direct drill grass and clover EITHER into one–two year leys without mat, five+ days after spraying, OR long leys with some mat, in the spring following autumn

application.• DO NOT apply lime or fertiliser prior

to CLINIC ACE application.• Treatment timings:1. Regrowth 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 REGRAZING OR MOWING.

• Normal cultivations for the next crop may be made as usual once fields are cleared of grass crops.

Grassland destruction and control of associated weeds

Weed infestation Dose rate Water volume

Short rotation ryegrass with annual weeds

Leys two–four years old with perennial grass weeds

Long leys four–seven years old with perennial broad-leaved weeds

Permanent pasture

3.0 l/ha

4.0 l/ha

5.0 l/ha

6.0 l/ha


13

Grassland destruction

Application rates for grassland destruction

3.0 l/ha 4.0 l/ha 5.0 l/ha 6.0 l/ha

Chickweed, common Bent, black Bracken** Clover, white *

Dock seedlings Bent, common Buttercup, creeping * Fescue, red

Fescue, meadow Bent, creeping Clover, red Fescue, sheep’s

Foxtail, meadow Brome, soft Daisy Molinia (Purple moor-grass)

Mayweed species Cocksfoot Hair-grass, tufted Nardus (Mat grass)

Meadow grass, annual Couch, common Nettle, common Ragwort, common

Meadow grass, rough Dock, broadleaved Rush, soft Rattle, yellow

Mouse ear, common Dock, curled Sedges Rush, hard

Ryegrass, Italian Plantains Sorrel, common Rush, heath

Speedwell species Ryegrass, perennial Sorrel, sheep’s Rush, jointed

Timothy Soft-grass, creeping Sow-thistle, perennial

Yorkshire fog Thistle, creeping

Thistle, dwarf

Thistle, spear

Yarrow

* White clover is best cut in June and sprayed one month later. Creeping buttercup should be sprayed at flowering stage.

** At full frond expansion.

Grassland destruction

14

15Green cover on land not being used for crop production – set aside

Target weed/usage Weed infestation Dose rate Water volume

BEFORE OR DURING REMOVAL FROMPRODUCTIONCommon couch

Perennial broadleaved weeds and otherperennial grasses

Annual weeds:Autumn/spring of year one onlySummer of year one and thereafter

Up to 75 shoots/m2

Over 75 shoots/m2

-

-

-

3.0 l/ha4.0 l/ha

4.0 l/ha

1.5 l/ha

3.0 l/ha


AFTER SHORT ROTATION OR LONGTERM REMOVAL FROM PRODUCTIONNatural regeneration and crop cover destruction

Annual weedsPerennial grassesPerennial broadleaved weeds

-

-

-

3.0 l/ha4.0 l/ha5.0 l/ha



• 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.

16For tank mixes contact Nufarm

Hydraulic sprayersCLINIC ACE can be applied in a volume of 80–250 l/ha. The optimum volume pre-harvest in cereals is 80–100 l/ha of water. Pre-harvest in Oilseed rape and Linseed the optimum volume is 150–200 l/ha of water. Higher volumes with courser droplets are needed when penetration of dense vegetation is required. Small targets such as young grasses or seedling weeds require a spray producing finer droplets to ensure chemical hits the target.

Rotary atomisersRotary atomisers can be used with a minimum volume of 40 l/ha of water. See label for details.

Weed wipersSee product label.

Keep water clean Crop protection chemicals can be a threat to water quality and wildlife Even tiny spills and splashes can contaminate a lot of water which costs all water

consumers to remove Doing nothing will result in loss of popular products and further restrictions on farming

practice

For more information visit the voluntary initiative websitewww.voluntaryinitiative.org.uk

Spraying

Stewardship

Further information

Details of application timings and rates are detailed in Nufarm labels and product literature; both of which can be accessed from our web site at www.nufarm.com/ukAlternatively ring the Nufarm helpline on 0208 3197232 Monday-Friday 9 am - 5 pm.

Nufarm UK Ltd Crabtree Manorway North Belvedere, Kent DA17 6BQTel: 020 8319 7222

Always read the label: use pesticides safely

Clinic Ace contains glyphosate.Clinic Ace is a trade mark of Nufarm Ltd..All other trademarks are acknowleded to be the property of the appropriate manufacturer.

Documents

Clinic Ace Leaflet/Guide to Use - Nufarm · A foliar applied herbicide for the control of annual and perennial grass and broadleaved weeds before sowing or planting all crops. For