
FUNGICIDES
PRODUCT LABEL
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.
GENERAL INFORMATION
PRIORI XTRA is a suspension concentrate containing 200 g/l azoxystrobin and 80 g/l cyproconazole.
PRIORI XTRA contains both a triazole and a strobilurin fungicide. It has contact and systemic activity, with protectant properties for the control of a wide range of diseases in all commercial varieties of winter and spring wheat, winter and spring barley, winter and spring oats, rye and winter and spring oilseed rape.
DISEASES CONTROLLED
Wheat
Leaf Spot (
Septoria tritici)
Glume Blotch (
Septoria nodorum)
Yellow Rust (
Puccinia striiformis)
Brown Rust (
Puccinia recondita)
Eyespot (
Tapesia yallundae and
Tapesia acuformis) – useful reduction
Can reduce the severity of Take-all (
Gaeumannomyces graminis var. Tritici)
When used to control other diseases, PRIORI XTRA will also control Wheat Powdery Mildew
Barley
Leaf Blotch (
Rhynchosporium secalis) – moderate control
Net Blotch (
Pyrenophora teres)
Powdery Mildew (
Erysiphe graminis hordei)
Brown Rust (
Puccinia hordei)
Eyespot (
Tapesia yallundae and
Tapesia acuformis) – useful reduction
Can reduce the severity of Take-all (
Gaeumannomyces graminis var. Tritici)
Oats
Crown Rust (
Puccinia coronata)
Powdery Mildew (
Erysiphe graminis f.sp. avenae)
Rye
Brown Rust (
Puccinia recondita)
Leaf Blotch (
Rhynchosporium secalis) – moderate control
Powdery Mildew (
Eryisphe graminis)
Oilseed rape
Dark Leaf and Pod Spot (
Alternaria brassicae)
Sclerotinia Stem Rot (
Sclerotinia sclerotiorum)
CROP SPECIFIC INFORMATION
WHEAT, BARLEY, OATS AND RYE
Spray timing
Treatment at early stages of disease development will ensure the best results. Apply at first sign of disease attack. A further application may be needed if disease attack is prolonged.
Take-all
When used to control the listed foliar diseases, PRIORI XTRA applied at the first or second node stage of the crop can reduce the severity of Take-all infection.
Rate of Use
1 litre per hectare.
Resistance Management
Use PRIORI XTRA as part of an Integrated Crop Management (ICM) strategy incorporating other methods of control, including where appropriate other fungicides with a different mode of action. You must not apply more than two foliar applications of Qol containing products to any cereal crop.
There is significant risk of widespread resistance occurring in Septoria tritici populations
in the UK. Failure to follow resistance management action may result in reduced levels of disease control.
Strains of wheat and barley powdery mildew resistant to Qol’s are common in the UK. Control of wheat powdery mildew can only be relied upon from the triazole component. Where specific control of wheat mildew is required this should be achieved through a programme of measures, including products with recommendations for control of mildew that contain different active substances used in mixture or sequence.
OILSEED RAPE
Timing
Before applying PRIORI XTRA, ensure the crop is free from any stress caused by environmental or agronomic effects. Best results will be achieved from applications made as a protectant treatment following a disease risk assessment or the use of appropriate decision support systems.
A second treatment may be required if disease pressure remains high.
Sclerotinia – PRIORI XTRA should be applied as a protectant spray during flowering. The optimum timing is early flowering to mid flowering (GS60–65)
A late application of PRIORI XTRA against
Sclerotinia will also limit the development of
Alternaria.
Rate of Use
1 litre per hectare.
Resistance Management
To avoid the likelihood of resistance developing, application of PRIORI XTRA should be made with due regard to current FRAG-UK guidelines for Qol compounds. Do not make more than two applications of PRIORI XTRA to crops of oilseed rape. Use PRIORI XTRA as part of an Integrated Crop Management (ICM) strategy.
MIXING AND SPRAYING
Ensure that the sprayer is clean and correctly set to give an even application at the required volume. Half-fill the spray tank with clean water and start agitation. Shake the container and add the required amount of PRIORI XTRA to the sprayer using a filling device (e.g. induction bowl or closed transfer unit) or by direct addition to the sprayer tank.
Wash out containers thoroughly, preferably using an integrated pressure rinsing device, or manually rinse three times. Add washings to the sprayer at the time of filling. Complete filling to the required volume and continue to agitate throughout the spraying operation.
Do not leave the spray liquid in the sprayer for long periods (such as during meal breaks or overnight).
Volume of water and spraying
Apply in 200 litres of water per hectare using a MEDIUM quality spray (BCPC) at a pressure of
at least 2 bar. Apply through conventional crop spraying equipment.
After spraying
Thoroughly wash out sprayer according to the manufacturer’s guidelines and dispose of washings and clean containers according to DEFRA Code of Practice and local water authority guidelines.
COMPATIBILITY
For further information on the approval status for use in tank mixture consult your supplier.
COMPANY ADVISORY INFORMATION
RESISTANCE MANAGEMENT
PRIORI XTRA is a co-formulated mixture of the strobilurin azoxystrobin and triazole cyproconazole. PRIORI XTRA contains active ingredients within the SBI and QoI fungicide resistance groups. The two active ingredients possess different modes of action thus form part of a resistance management strategy.
PRIORI XTRA contains a DMI fungicide. Resistance to some DMI fungicides has been identified in Septoria leaf blotch (
Mycosphaerella graminicola) which may seriously affect the performance of some products. For further advice on resistance management in DMIs contact your agronomist or specialist advisor, and visit the FRAG-UK website.
PRIORI XTRA contains azoxystrobin, a member of the Qol cross resistance group. PRIORI XTRA should be used preventatively and should not be relied on for its curative potential. Disease control may be reduced if strains of other pathogens less sensitive to PRIORI XTRA develop.
Users should refer to current FRAG-UK guidelines for Qol compounds.
PROTECT FROM FROST
SHAKE WELL BEFORE USE
SAFETY PRECAUTIONS
Precautions marked * are a legal requirement.
(a) Operator protection
Engineering controls of operator exposure must be used where reasonably practicable in addition to the following personal protective equipment:
WEAR SUITABLE PROTECTIVE GLOVES when handling the concentrate.
However, engineering controls may replace personal protective equipment if a COSHH assessment shows they provide an equal or higher standard of protection.
WASH SPLASHES from skin and eyes immediately.
DO NOT BREATHE SPRAY.
WASH HANDS AND EXPOSED SKIN before meals 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.
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.
DO NOT RE-USE CONTAINER FOR ANY PURPOSE.
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 FUNGICIDE
Winter wheat, spring wheat, winter rye and spring rye
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 1.0
MAXIMUM TOTAL DOSE: 2 litres product/ha/crop
LATEST TIME OF APPLICATION: Up to and including anthesis complete (GS69)
Winter barley, spring barley, winter oats and spring oats
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 1.0
MAXIMUM TOTAL DOSE 2 litres product/ha/crop
LATEST TIME OF APPLICATION: Up to and including emergence of ear complete (GS59)
Winter and spring oilseed rape
MAXIMUM INDIVIDUAL DOSE (LITRES PRODUCT/HA): 1.0
MAXIMUM TOTAL DOSE 2 litres product/ha/crop
LATEST TIME OF APPLICATION: Up to and including BBCH 80 (beginning of ripening) or 30 days before harvest, whichever is sooner
Other specific restrictions:
To reduce the risk of resistance developing in target diseases the total number of applications of product containing Qol fungicides made to any cereal crop must not exceed two.
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 5XE
Tel: Cambridge (01223) 883400
In case of toxic or transport emergency ring 01484 538444 any time.