Optica

Manufacturer
FMC
Category
Herbicides
Registered until
Registration expired
Registration number
14373
Active materials
Links

A selective herbicide containing 600 g/l of mecoprop-p for the control of broad-leaved weeds.

Crops:
Winter and Spring Wheat, Barley and Oats, Grass Seed crops, Amenity Grassland, Managed Amenity Turf.

OPTICA is a hormone herbicide which is absorbed by both shoots and roots and rapidly translocated within herbaceous plants.
When herbicides with the same mode of action are used repeatedly over several years in the same field, selection of resistant biotypes can take place.
These can propagate and may become dominating. A weed species is considered to be resistant to a herbicide if it survives a correctly-applied treatment at the recommended dose. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures. Guidelines have been produced by the Weed Resistance action Group and copies are available from the HGCA, CPA, your distributor, crop advisor or product manufacturer.

Restrictions:
Spring Cereals and Grass Seed crops may only be treated once per crop.
Do not apply OPTICA to any crop suffering from herbicide damage or physical stress.
Do not apply OPTICA during cold weather, periods of drought, if rain or frost are expected, nor if the crop is wet.
If sharp or severe frosts occur within 3-4 weeks of application to Barley under stress or of low vigour on light soils, scorch or stunting may occur and yields may be less than optimum.
The crop should not be rolled or harrowed within a period of seven days before or after spraying with OPTICA.
Avoid drift onto all broad-leaved plants outside the target area.
čWASH EQUIPMENT thoroughly immediately after use. Rinse with water three times, drain and allow to dry. Traces of herbicide left in the sprayer may damage susceptible crops if these are subsequently sprayed using the same equipment.

Mixing:
Half fill the spray tank with clean water and start the agitation. Pour in the requiredamount of OPTICA. 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.
Mixtures known to be incompatible:
OPTICA + diclofop-methyl + fenoxaprop-p-ethyl (MAFF 08946, 08947)
OPTICA + fenoxaprop-p-ethyl
OPTICA is incompatible with Manganese sulphate.

Registered for culturesRate
Grassland2.4 l
Winter barley2 l
Winter oats2 l
Winter wheat2 l
Spring barley2 l
Spring oats2 l
Spring wheat2 l