OpusPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A suspension concentrate containing 125 g/litre (12.1% w/w) epoxiconazole.

Opus is a systemic fungicide for use in winter wheat, spring wheat, winter barley, spring barley, triticale, rye and oats.

 

This product may cause damage to broad-leaved plant species.

Avoid spray drift on to neighbouring crops.

Wash equipment thoroughly after use.

 

Opus is a systemic fungicide with protectant and curative properties for the control of powdery mildew, Rhynchosporium, net blotch and brown and yellow rusts on both winter and spring barley; powdery mildew, brown and yellow rusts, Septoria tritici and Septoria nodorum on winter and spring wheat and triticale; powdery mildew, brown and yellow rusts and Rhynchosporium in rye; and powdery mildew in oats.

Opus also provides reduction of eyespot in winter barley, triticale, rye, winter oats and winter wheat, good reduction of Fusarium ear blight and reduction of sooty moulds (Cladosporium, Botrytis) on the ears of winter and spring wheat.

Strains of certain cereal diseases with decreased sensitivity to triazole fungicides are known to exist in the UK. Where these occur or develop Opus may not give satisfactory control.

Opus contains epoxiconazole, 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 adviser, and visit the FRAG-UK website.

 

Opus is a systemic fungicide for use in winter wheat, spring wheat, winter barley, spring barley, triticale, rye and oats.

Apply Opus at the start of foliar disease attack. A maximum of two applications can be made up to and including flowering just complete in winter and spring wheat, rye and triticale and up to and including emergence of ear just complete in winter and spring barley and oats.

For optimum effect against eyespot with Opus apply between the leaf sheaths erect and second node detectable stages of the crop.

For protection against Fusarium ear blight and sooty mould on the ears of winter and spring wheat, apply Opus during ear emergence.

For a quicker clean-up of any mildew established at the time of application, apply Opus in a tank mix with Corbel at the dose given below.

For control of Septoria tritici and Septoria nodorum, treatment should normally be made after the third node detectable stage when disease is present and when weather favouring disease development has occurred. A follow-up treatment may be necessary if conditions continue to favour disease development.

Apply 1 litre Opus in 200 litres of water per hectare.

Apply as a MEDIUM spray, as defined by BCPC.

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, taking due note of any instructions given as to the order of mixing.

 

 The use of the BASF Compatibility list is conditional upon the acceptance of these terms and conditions.

When using a tank-mix detailed in the BASF Compatibility list you must:- • Follow all recommendations provided on the manufacturer’s label. • Add each product to the spray tank separately, following the recommended mixing order if specified. • Maintain suitable agitation during mixing and application • Use the tank-mix immediately. Certain tank-mixes stipulated in the BASF Compatibility List have been tested for physical compatibility only and do not represent a guarantee of either biological compatibility or crop safety.