Product Guide


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Information on Extensions of Use (formerly SOLA’s – Specific Off Label Approvals) from the CRD

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Revus

Click to print Revus Summary

FUNGICIDES

PRODUCT LABEL

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.

PROPERTIES OF REVUS
REVUS is a foliar fungicide for the preventative control of late blight (Phythophthora infestans) in potatoes and downy mildew in lettuce, and is highly active against spore germination. Uptake into the leaf tissue assures good translaminar activity and inhibits mycelial growth during the incubation period.

Disease Controlled
Control of Foliar Blight (Phytophthora infestans) and protection against Tuber Blight in potatoes.

For the control of downy mildew on protected and outdoor lettuce, lamb's lettuce, endives (including frisee and escarole), chicory (radicchio), rocket, purslane and herbs

QUALIFIED RECOMMENDATION: REVUS may be applied to the following crops – red mustard, salad greens, spinach leaves, land cress, cress and spinach beet leaves (chard). This is based on limited evidence of the effectiveness and crop safety.

POTATOES
REVUS can be used on all varieties of potatoes including seed potatoes.

BACKGROUND TO POTATO BLIGHT CONTROL
Late Blight (Phytophthora infestans) is potentially a devastating disease of potatoes. In commercial production, a season long disease prevention policy is essential. First of all ensure that other control methods are being satisfactorily applied:

1. Prevent re-growth on potato dumps.
2. Destroy all groundkeepers.
3. Plant disease free seed.
4. Use generous soil ridges to protect tubers.

Integrate this approach with a fungicide programme:

Early Crops
In first and second early potato crops, particularly those grown in the same locality as main crop potatoes, an adequate and full blight protection programme should be applied right up to harvesting or haulm desiccation. This will protect the early crop while helping to reduce disease risk to later crops.

Main Crops
Disease prevention programmes require regular and season long fungicide use to limit foliar blight development. However, as an effective fungicide programme will preserve leaf area there may be more risk of infecting tubers at harvest, particularly during “heavy” blight years. Completion of the control programme should therefore include a complete haulm desiccant. Lifting of the crop should not take place for at least 10 days after COMPLETE KILL of the haulm. Crops intended for storage should not be lifted while there is any green tissue AT ALL on the leaves or stem bases.

Blight Risk Assessment
The risk of disease is affected by weather conditions (during the crop life) and crop location:

Weather Conditions – Spread of disease occurs under warm, humid conditions. Preferably use a reliable decision support system to determine what frequency of fungicide treatment is appropriate and fungicide type required.

Note: Blight forecasting has often been based on the occurrence of “Smith periods”. A “Smith period” is a 48 hour period in which the minimum temperature is 10°C or more and
the relative humidity exceeds 90% for at least 11 hours during the first 24 hours and for at least 11 hours again during the final 24 hours. However, any period of warm, humid weather increases blight risk.

Crop Location – Locations with the highest probability of blight problems are:

1. Areas of the country where extensive main crop or early production takes place e.g. East Anglia, the South West or the West.
2. Areas where climatic conditions that encourage disease development occur on a frequent basis e.g. The South West, the West and the Fens.

TIMING
REVUS is a protectant fungicide and therefore the spray programme must start BEFORE blight enters the crop. Commence spraying at the first blight warning or when local weather conditions are favourable for the disease.

Intervals between applications of REVUS should be reduced as blight risk increases, so that protection of the crop can be maintained.

Applications of REVUS should be made at 7–10 day intervals depending on disease pressure. As disease pressure and the risk of late blight infection increase, the interval should be shortened.

Rates of Use
Apply REVUS at 0.6 litres product per hectare. Up to four applications may be made per crop.
Applications of REVUS can be made up to 3 days before harvest.

RESISTANCE MANAGEMENT
REVUS contains a CAA fungicide (FRAC code no. 40). It does not contain a formulated partner mixture, e.g. mancozeb, for resistant management purposes. To minimise the risk of resistance development in the pathogen population the following guidelines for CAA fungicides (based on an average number of 12 fungicide applications/season for blight control) should be followed:

1 Where possible, use formulated/tank mixtures or an alternating strategy using fungicides from different mode of action groups.
2 Where CAA fungicides are applied as a mixture (co-formulated or as a tank mix) up to six applications (or max. of 50% of the total number of applications) may be made per crop or season.
3 Alternatively, where CAA fungicides are applied alone (without a co-formulant or tank mix partner) a maximum of four applications (or 33% of the total number of applications) may be made per crop or season.
4 No more than 3 applications of any CAA fungicide should be made consecutively.
5 Further information on suitable tank mix products and resistance management strategies is available from FRAG and BPC websites.

LETTUCE, ENDIVES (INCLUDING FRISEE, ESCAROLE), CHICORY (RADICCHIO), ROCKET, RED MUSTARD, SALAD GREENS, SPINACH LEAVES, LAMB’S LETTUCE, CRESS, LAND CRESS, PURSLANE, SPINACH BEET LEAVES (CHARD) AND HERBS

TIMING
Before applying REVUS, ensure the crop is free from any stress caused by environmental or agronomic effects. Always inspect crops to assess disease development immediately before spraying. Best results will be achieved from applications made in the earliest stage of disease development or as a protectant treatment following a disease risk assessment or the use of appropriate decision support systems.

Only one application of REVUS should be made per crop.

Applications of REVUS can be made up to 7 days before harvest.

Rates of Use
Apply REVUS at 0.6 litres product per hectare.

RESISTANCE MANAGEMENT
To minimise the risk of resistance developing REVUS may be applied in tank mixture or alternating using a fungicide with a different mode of action at a rate that is effective against downy mildew. Further information on suitable tank mix products and resistance management strategies is available on the FRAG website.

MIXING AND SPRAYING
The application to indoor lettuce should be made via hydraulic nozzle applicator e.g. motorised sprayer with hand lance or boom lance or knapsack applications. For outdoor applications, suitable hydraulic nozzle sprayers should be used.

Spray Volume
Potatoes: Apply REVUS in at least 200 litres of water per hectare.
Lettuce and similar: Apply REVUS in 200-600 litres of water per hectare.

Spray Nozzles
A medium quality spray* is preferred for application of REVUS (* as defined by The British Crop Protection Council). A spray pressure of 2–3 bar is recommended.

Mixing
Make sure the sprayer is clean and set to give an even application at the correct volume.

Fill the spray tank with half the required volume of clean water and start agitation. Add the required amount of REVUS and continue agitation whilst adding the rest of the water.

Agitate the mixture thoroughly before use and continue agitation during spraying and any stoppages.

Thoroughly wash all spray equipment with water immediately after use.

Do not leave the spray liquid in the sprayer for long periods (such as during meal breaks or overnight).

COMPANY ADVISORY INFORMATION
As part of our Product Stewardship policy, Syngenta Crop Protection recommends the following precautions should also be observed:

Wear appropriate clothing - cotton overall and rubber gloves, when handling the concentrate.

Since the occurrence of resistance cannot be forecast, neither Syngenta Crop Protection UK Limited nor its distributors can accept responsibility for any loss or damage to crops caused by the failure of REVUS to control resistant strains.

FULL LIST OF HERBS
Scientific Name - Common Name
Agastache rugosa - Korean Mint
Agastache spp
Allium schoenoprasum - Chives
Anethum graveolens - Dill
Angelica archangelica - Angelica
Anthemis nobilis - English Chamomile
Anthriscus cerefolium - Chervil
Artemisia dracunculus - Tarragon
Asperula odoratum - Woodruff
Barbarea verna - Land cress
Borage officinalis - Borage
Calendula officinalis - Marigold
Carum carvi - Caraway
Coriandrum sativum - Coriander
Dracocephalum moldavica - Dragonhead
Eruca sativa - Rocket
Foeniculum vulgare - Fennel
Helichrysum angust/italicum - Curry Plant
Hyssopus officinalis - Hyssop
Laurus nobilis - Bay
Lavandula angustifolia - English Lavender
Lavandula intermedia - Lavandin
Lavandula spica - Spike Lavender
Lavandula stoechas - French Lavender
Levisticum officinalis - Lovage
Lippia citriodora (syn Alloysia triphylla) - Lemon Verbena
Melissa officinalis - Lemon Balm
Mentha gentilis - Gingermint
Mentha suaveolens - Applemint
Mentha suaveolens variegata - Pineapplemint
Mentha spicata - Spearmint
Mentha x piperita - Peppermint
Mentha x piperita citrata - Lemon Peppermint
Ocimum basilicum - Basil
Origanum heracleoticum
Origanum majorana - Marjoram
Origanum vulgare - Oregano
Nepeta cataria - Catnip
Petroselinum crispum - Parsley
Poterium sanguisorba - Burnet (salad)
Rosmarinus officinalis - Rosemary
Rumex acetosa - Sorrel
Ruta graveolens - Rue
Salvia officinalis - Sage
Salvia sclarea - Clary Sage
Satureja spp. - Savory
Tanacetum parthenium - Feverfew
Thymus camphoratus
Thymus citriodora - Lemon Thyme
Thymus serpyllum - Mother Of Thyme
Thymus vulgaris - Thyme
Trigonella foenum-graecum - Fenugreek
Tropaeleum majar - Nasturtium
Urtica dioica - Nettle
Viola odorata - Violet

SAFETY PRECAUTIONS
(a) Operator protection
WASH HANDS AND EXPOSED SKIN before eating, drinking and after work.
IF YOU FEEL UNWELL, seek medical advice (show label where possible).

(b) Environmental protection
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.

(c) Storage and disposal
KEEP IN ORIGINAL CONTAINER, tightly closed in a safe place.
DO NOT RE-USE CONTAINER FOR ANY PURPOSE.
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 safely.



THE (COSHH) CONTROL OF SUBSTANCES HAZARDOUS TO HEALTH REGULATIONS MAY APPLY TO THE USE OF THIS PRODUCT AT WORK

IMPORTANT INFORMATION

FOR USE ONLY AS AN AGRICULTURAL/HORTICULTURAL FUNGICIDE

For use in potatoes, protected and outdoor lettuce, lamb’s lettuce, endives (including frisee and escarole), chicory (radicchio), rocket, red mustard, salad greens, spinach leaves, land cress, cress, purslane, spinach beet leaves (chard) and herbs

Crop: Potatoes
Maximum Individual Dose: 0.6 litres product per hectare
Maximum Number of Treatments: Four per crop
Latest Time of Application: 3 days before harvest

Crop: Protected and outdoor lettuce, lamb’s lettuce, endives (including frisee and escarole), chicory (radicchio), rocket, red mustard, salad greens*, spinach leaves, land cress, cress, purslane, spinach beet leaves (chard) and herbs#
Maximum Individual Dose: 0.6 litres product per hectare
Maximum Number of Treatments: One per crop
Latest Time of Application: 7 days before harvest

*crops harvested no later than the 8 true leaf stage
# please refer to the full list of herbs included at the back of the label

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

Syngenta Crop Protection UK Limited, CPC4, Capital Park, Fulbourn, Cambridge, CB21 4XE
Tel: Cambridge (01223) 883400

In case of toxic or transport emergency ring 01484 538444 any time.

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Syngenta Crop Protection UK Limited. Registered in England No. 849037. Registered office: CPC4, Capital Park, Fulbourn, Cambridge CB21 5XE
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