Crozier

Manufacturer
Barclay Chemicals
Category
Herbicides
Registered until
2026-04-30
Registration number
19052
Active materials
Links

For the control of annual grass weeds and annual broad-leaved weeds in winter barley, winter wheat and early and maincrop potatoes.

RESTRICTIONS


Do not apply to crops under stress or to crops suffering from waterlogging, pest attack, disease, frost or the effects of high diurnal temperature changes. Transient yellowing can occur although crops fully recover.
For winter cereals, seed must be covered by 3 cm of soil and for the best results apply to a firm, moist seedbed free of clods.
DO NOT sow field beans or broad beans within 12 months of application.

GRASS WEEDS CONTROLLED
Susceptible
Rough stalked meadow-grass: Pre-emergence
Moderately susceptible
Annual meadow-grass: Up to 3 leaves
Loose silky bent: Pre-emergence
Crozier used pre-emergence will reduce black-grass and Italian rye-grass populations. It should only be used as part of an appropriated management strategy involving sequences with products of alternative modes of action and the use of cultural techniques.

CROP SPECIFIC INFORMATION
Winter Cereals
Crozier applied pre-emergence may infrequently slow crop emergence. The effect is transient and has been demonstrated not to adversely affect yield.

TIMING
Winter Cereals
Crozier can be either used at pre-emergence of the crop, or at post-emergence of the crop up to GS 21. One application per crop.
Early and Maincrop Potatoes
Crozier may be applied pre-emergence up to at emergence of the crop (soil rising over emerging potato shoots). Complete ridge formation before application of Crozier and do not disturb treated soil after application.

RATES OF USE
Winter Cereals pre-emergence 5 litres of product per hectare. One application per crop.
OR
Winter Cereals early post-emergence up to GS 21
3 litres of product per hectare. One application per crop.
Early and Maincrop Potatoes up to GS 11
5 litres of product per hectare. One application per crop.

Registered for culturesRate
Winter wheat3 - 5 l
Winter barley3 - 5 l
Potatoes5 l