Opera

Manufacturer
BASF
Category
Fungicides
Registered until
Registration expired
Registration number
16420
Active materials
Links
A suspo-emulsion containing 133 g/litre (12.5% w/w) pyraclostrobin plus 50 g/litre (4.7% w/w) epoxiconazole.
A protectant and systemic fungicide for use in winter wheat, winter barley, spring wheat, spring barley, oats and sugar beet, with curative properties in cereals.
 
DIRECTIONS FOR USE
 
Opera is a fungicide with protectant and systemic properties for use in winter and spring wheat, winter and spring barley, winter and spring oats, durum wheat, rye, triticale, sugar beet, with curative properties in cereals.
Yield response in cereals may be obtained in the absence of visual disease.
 
Restrictions/Warnings
Extreme care must be taken to avoid drift onto nearby crops.
Wash equipment thoroughly after use.
 
Disease Control
Opera is a fungicide with protectant and systemic properties for use in winter and spring wheat, winter and spring barley, winter and spring oats, durum wheat, rye, triticale, sugar beet and maize (forage and grain), with curative properties in cereals (except maize). Disease control is summarised below:
WINTER WHEAT, SPRING WHEAT, DURUM WHEAT
Disease:Septoria tritici (See Note 1) 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Septoria nodorum 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Tan Spot 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Yellow rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Brown rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Fusarium ear blight (See Note 2) 
Rate:1.5 litres product per hectare
Criticale Comments:GR
 
WINTER AND SPRING BARLEY
Disease:Yellow rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Brown rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Ramularia 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Net blotch
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Rhynchosporium 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
WINTER AND SPRING OATS
Disease:Crown rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
RYE
Disease:Yellow rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Brown rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Ramularia 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Rhynchosporium 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
TRITICALE
Disease:Septoria tritici (See Note 1) 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Septoria nodorum 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Tan Spot 
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Yellow rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Brown rust 
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease:Ramularia
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
Disease:Fusarium ear blight (See Note 2) 
Rate:1.5 litres product per hectare
Criticale Comments:GR
 
SUGAR BEET
Disease: Beet Rust 
Rate:1.0 litres product per hectare
Criticale Comments:C
 
Disease: Beet Powdery Mildew
Rate:1.0 litres product per hectare
Criticale Comments:C
 
Disease: Ramularia leaf spot
Rate:1.0 litres product per hectare
Criticale Comments:C
 
Disease: Cercospora leaf spot
Rate:1.0 litres product per hectare
Criticale Comments:C
 
MAIZE
Disease: Maize eyespot
Rate:1.5 litres product per hectare
Criticale Comments:C
 
Disease: Northern leaf bligh
Rate:1.5 litres product per hectare
Criticale Comments:MC
 
(C = Control MC = Moderate control GR = Good Reduction Note 1: S. tritici: Opera is recommended for control of S. tritici with curative ability in the latent phase. Note 2: Fusarium: Apply Opera during flowering. Yield response in cereals may be obtained in the absence of visual disease. In maize, a grain yield response may be obtained in the absence of visual disease.)
 
Resistance Management
Opera contains pyraclostrobin, a member of the QoI cross resistance group. Opera should be used preventatively and should not be relied on for its curative potential.
When curative activity is needed apply QoI fungicides in mixture with a suitable dose of a curative fungicide from a different cross-resistance group. Opera meets this requirement as it contains epoxiconazole. To ensure the effectiveness of the epoxiconazole component as a partner, Opera should always be applied at the full recommended rate.
Opera 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.
Use Opera 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 QoI containing products to any cereal crop.
There is a 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.
 
Crops
Opera is approved for use in winter and spring wheat, winter and spring barley, winter and spring oats, durum wheat, rye, triticale, sugar beet.
Cereals
Time of Application
Apply Opera at the start of foliar disease attack. A maximum of two applications can be made before grain watery ripe in winter and spring wheat, durum wheat, rye and triticale and up to and including emergence of ear just complete in winter and spring barley and winter and spring oats.
Rate of Application
Apply Opera in a minimum of 200 litres of water per hectare.
Qualified recommendation
100 L/ha water volume may also be used, however, these have not been supported by effectiveness or crop safety data.
Sugar beet
Time of Application
Apply Opera at the start of foliar disease attack. A maximum of two applications can be made, allowing a minimum harvest interval of four weeks after final application.
Rate of Application
Apply Opera in a minimum of 200 litres of water per hectare.
Qualified recommendation
100 L/ha water volume may also be used, however, these have not been supported by effectiveness or crop safety data.
  Maize (Forage and Grain)
Time of Application
Best results are achieved by an application of Opera before the start of foliar disease attack or at the very earliest signs of infection. Opera gives control of Eyespot for up to eight weeks after application when applied before the start of foliar disease attack. If applying before the start of disease attack, it is recommended to only treat sites that have a known history of disease when conditions are conducive for disease development. It is recommended to consult with a specialist maize agronomist before application. Once established in the crop Opera can reduce the development of the disease. Application can be made up to and including mid-flowering.
Rate of Application
Apply Opera in a minimum of 200-300 litres of water per hectare.
Qualified Recommendation
100 L/ha water volumes may also be used, however these have not been supported by effectiveness or crop safety data. 
 
Mixing and Spraying
Half fill the spray tank with clean water and start the agitation. SHAKE THE CONTAINER WELL before use and pour in the required amount of product. Rinse any empty containers thoroughly and add rinsings to the spray tank. Add the remainder of the water and continue agitation until spraying is completed.
When tank mixes are to be used, each product should be added separately to the spray tank.
 
Compatibility
For details of compatibilities contact your distributor, local BASF representative or the BASF Technical Services Hotline: 0044 845 602 2553.
TrademarkAcknowledgements
Opera is a registered trademark of BASF.
Registered for culturesRateBBCHPreharvest Interval
Winter triticale1.5 l71
Winter rye1.5 l71
Winter oats1.5 l59
Sugar beets1 l028
Spring wheat1.5 l71
Spring rye1.5 l71
Spring triticale1.5 l71
Winter barley1.5 l59
Spring oats1.5 l59
Corn1.5 l65
Winter wheat1.5 l71
Spring barley1.5 l59