Opus Max

Manufacturer
BASF
Category
Fungicides
Registered until
Registration expired
Registration number
03744
Active materials
Links
Product use illegal from 30/06/2017

An emulsifiable concentrate containing 83 g/litre (8 % w/w) epoxiconazole.

A systemic fungicide for use in winter wheat, spring wheat, winter barley, spring barley, triticale, rye and oats.

DIRECTIONS FOR USE

WINTER BARLEY, SPRING BARLEY
Diseases:
Powdery mildew, Rhynchosporium, Net blotch and Brown and Yellow rusts.
Rate:
1.5l/ha
Critical comments: 
Maximum total dose per crop: 3.0 litres product per hectare. Latest time of application: up to and including emergence of ear just complete (GS 59).

WINTER WHEAT, SPRING WHEAT, TRITICALE
Diseases:  Powdery mildew, Brown and Yellow rusts, Septoria tritici and Septoria nodorum.
Rate: 1.5l/ha

RYE
Diseases: Powdery mildew, Brown, Yellow rusts and Rhynchosporium.
Rate: 1.5l/ha

OATS
Diseases: Powdery mildew
Rate: 1.5l/ha

Critical comments: Maximum total dose per crop: 3.0 litres product per hectare. Latest time of application: Before the start of flowering (anthesis) (GS 61).

Time of Application

Apply Opus Max at the start of foliar disease attack. A maximum of two applications can be made up to before the crop enters the flowering period in winter and spring wheat, rye and
triticale and up to and including emergence of ear just complete in winter and spring barley
and winter and spring oats.
For optimum effect against eyespot with Opus Max 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 Max during ear emergence.
For a quicker clean-up of any mildew established at the time of application, apply Opus Max
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.

Rate of Application
Apply 1.5 litres Opus Max in a minimum of 200 litres of water per hectare.
When using a tank mix with Corbel apply 1.5 litres Opus Max with 0.5 litre Corbel per hectare
in the water volumes given above.

MIXING
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.

IMPORTANT NOTES
Avoid spray drift on to neighbouring crops.
Wash equipment thoroughly after use.
This product may cause damage to broad-leaved plant species.

WARNING
Strains of wheat powdery mildew with decreased sensitivity to triazoles are known to exist.
Where these occur or develop Opus Max may not give satisfactory control.

 

Registered for culturesRateBBCH
Winter wheat1.5 l0 - 61
Spring wheat1.5 l0 - 61
Winter triticale1.5 l0 - 61
Spring triticale1.5 l0 - 61
Winter rye1.5 l0 - 61
Spring rye1.5 l0 - 61
Spring barley1.5 l0 - 59
Winter barley1.5 l0 - 59
Spring oats1.5 l0 - 59
Winter oats1.5 l0 - 59