Fiesta TPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A suspension concentrate containing 60 g/litre (5.0% w/w) quinmerac and 360 g/litre (30.3% w/w) chloridazon.

A herbicide for the control of annual weeds in sugar beet, fodder beet and mangels.

Fiesta T is a soil-acting herbicide which controls germinating weeds by root absorption during or shortly after weed emergence. For optimum results the soil should be sufficiently moist at the time of application for the product to form an active herbicidal layer in the soil.

 

A maximum total dose of 2.6 kg chloridazon/hectare may only be applied every third year on the same field.

Fiesta T is suitable for use on soil types ranging from coarse sandy loam to clay loam as defined by the Soil Texture (85) System. Do not use on sands (coarse sand - loamy fine sand) or soils of high organic matter content such as fen peat and moss soils.

 When the crop is growing under unfavourable conditions Fiesta T may cause some depression in crop vigour with or without a reduction in stand. Some unfavourable conditions are:- – When a rapid increase in the transpiration rate of the beet causes a sudden increase in the rate of uptake of Fiesta T as, for example, when a sharp rise in temperature follows a period of low temperatures or heavy rainfall. – When the crop is suffering from a trace element deficiency, e.g. manganese. – When conditions are not conducive to even distribution of Fiesta T in the soil, such as inadequate soil moisture or poor tilth. – When rates of nitrogen in excess of those generally recommended are applied immediately before drilling. Where higher rates of fertiliser are considered necessary, these must be applied not less than three weeks before drilling. – When the crop is retarded or damaged due to harrowing or excessive consolidation of the soil by the press wheel. – When the crop is drilled at the incorrect depth. – When conditions at emergence reduce seedling vigour (eg encrustation or ‘capping’ of the soil). – Where there is a heavy loading of seed dressing on individual seeds. – Overdosing by overlapping spray swathes should be avoided.

Do not treat crops suffering from drought stress.

To reduce the risk of movement of Fiesta T to water:- – On clay soils, create a fine, consolidated seedbed to slow the downward movement of water. – Do not apply Fiesta T to dry soil. Moist soils have fewer and smaller cracks – Do not apply Fiesta T if heavy rain is forecast, wait until after the event.

Satisfactory results depend on moisture in the seedbed at the time of application. Adequate weed control depends upon sufficient rain falling before emergence to at least maintain this level of moisture.

Heavy rain falling shortly after spraying may check the growth of the crop, particularly when it leads to standing water in surface depressions. Under conditions of low pH, a reduction in herbicidal effectiveness may be noticed.

Susceptibility of weeds to Fiesta T applied alone pre-emergence, and in a programme with Fiesta T applied pre-emergence, followed by tank-mix with Betanal Flo or Betanal Tandem applied twice.

Weed:Annual Mercury 

 

Strains of some annual grasses, e.g. black-grass, wild oats, and Italian rye-grass, have developed resistance to herbicides which may lead to poor control. A strategy for preventing and managing such resistance should be adopted. 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.