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BUTRYFLOW is recommended for use as a selective weedkiller in forage maize, grain maize, sweet corn, linseed, bulb onion and shallot for the control of a wide range of annual broadleaved weeds.

 

Based on bromoxynil butyrate which has shown excellent safety to the maize crop.

Flexible dose rate according to weeds present.

One of a limited number of post-emergence contact herbicides for maize.

Can be used in forage maize, grain maize and sweet corn.

Controls difficult weeds such as Fat hen, Knotgrass and Black nightshade.

Unique post-emergence product for control of broadleaved weeds post-emergence in onions and shallots.

Label recommendation for use in linseed.

 

Lerap category: B

Pack size: 5 litres

Storage: PROTECT FROM FROST

 

This product qualifies for inclusion within the Local Environmental Risk Assessment for Pesticides (LERAP) scheme. Before each spraying operation from a horizontal boom sprayer, either a LERAP must be carried out in accordance with the ‘Local Environment Risk Assessment for Pesticides Horizontal Boom Sprayers’ booklet available from the HSE Chemicals Regulation Directorate’s website or the statutory buffer zone must be maintained. The results of the LERAP must be recorded and kept available for inspection for three years.

Applications should only be made to bulb onion and shallot crops that will be mechanically harvested.

Applications should only be made to onions and shallots between 1 May and 30 September.

READ THE LABEL BEFORE USE. USING THIS PRODUCT IN A MANNER THAT IS INCONSISTENT WITH THE LABEL MAY BE AN OFFENCE. FOLLOW THE CODE OF PRACTICE FOR USING PLANT PROTECTION PRODUCTS.

 

IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.

 

DO NOT treat crops suffering from stress caused by drought, frost, disease or other adverse factors.

CONSULT PROCESSOR BEFORE USING ON CROPS FOR PROCESSING.

Avoid overlapping spray swaths.

 

Applied as post-emergence herbicide in maize, sweetcorn, bulb onion and shallot, BUTRYFLOW controls a wide range of annual broadleaved weeds, especially young seedlings. The treatment must be made when the weeds are between the cotyledon stage and the sixleaf stage.

 

Weed Species:Bindweed, black

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:S

 

Weed Species:Bindweed, field

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:S

 

Weed Species:Chickweed, common

Rate:1.0 l/ha

Critical Comments:MR

Rate:0.75 l/ha

Critical Comments:MR

Rate:0.6 l/ha

Critical Comments:R

 

Weed Species:Dock, broadleaved

Rate:1.0 l/ha

Critical Comments:R

Rate:0.75 l/ha

Critical Comments:R

Rate:0.6 l/ha

Critical Comments:R

 

Weed Species:Fat hen

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:S

 

Weed Species:Knotgrass

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:MS

 

Weed Species:Nightshade, black

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:S

 

Weed Species:Orache, common

Rate:1.0 l/ha

Critical Comments:S

Rate:0.75 l/ha

Critical Comments:S

Rate:0.6 l/ha

Critical Comments:S

 

Weed Species:Redshank

Rate:1.0 l/ha

Critical Comments:MS

Rate:0.75 l/ha

Critical Comments:MS

Rate:0.6 l/ha

Critical Comments:MS

 

(S = Susceptible MS = Moderately Susceptible MR = Moderately Resistant R = Resistant S* = very susceptible species which will be controlled by a dose of 0.6 l/ha BUTRYFLOW under optimum conditions (warm moist soils and bright sunshine)).

 

Maximum individual dose 1.0 l/ha.

Maximum total dose 1.0 l/ha.

Apply from the two leaf stage of the crop up to the eight leaf stage (GS 12–18). The period of treatment must be determined by the growth of the weeds rather than by the growth of maize. The duration of protection covers the whole period when maize is susceptible to weed competition.

Apply in 200 litres of water per hectare.

 

Maximum individual dose 1.0 l/ha.

Maximum total dose 1.0 l/ha.

Apply when the crop is 3–15 cm tall but before flower buds are visible.

Apply in 200 litres of water per hectare.

 

APPLICATION SHOULD ONLY BE MADE TO BULB ONION AND SHALLOT CROPS THAT WILL BE MECHANICALLY HARVESTED.

DO NOT APPLY BUTRYFLOW TO BULB ONION OR SHALLOT GROWN FROM SETS.

0.75 l/ha.

0.75 l/ha.

Apply between 1 May and 30 September. Apply from crop emergence until four true leaves (GS 14). It is important to note that crop tolerance is related to the development of leaf waxes and application when the development to leaf waxes has been impaired may cause crop damage. This could be when the crop is under stress or when applied before three true leaves are fully expanded when the development of waxes may not be complete.

Apply in 200 litres of water per hectare.

 

Partly fill the tank with water to a level of approximately a third of total, and then start agitation. Add the required quantity of BUTRYFLOW to the tank. Maintain agitation during treatment.

Extreme care must be taken to avoid spray drift onto non-crop plants outside of the target area.

Wash spray equipment and container thoroughly with alkaline solution.

Rinse twice through the system with pump to ensure that all pipes and nozzles are rinsed thoroughly.

 

Consult the manufacturer’s labels and leaflets for use recommendations.

 

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 resistant to a herbicide if it survives a correctly-applied treatment at the recommended dose.

Development of resistance within a weed species can be avoided or delayed by alternating (or tank mixing) with suitable products having a different mode of action.

Key aspects of the BUTRYFLOW weed resistance management strategy are:

Always follow the WRAG guidelines for preventing and managing herbicide resistance.

BUTRYFLOW is a nitrile herbicide (HRAC Code C3) whose mode of action is via membrane disruption caused by activated oxygen radicles formed by photosynthesis. Do not use BUTRYFLOW, or any other C3 herbicide, as a sole means of broadleaved weed control in successive crops.

Always use broadleaved weed herbicides with other modes of action throughout the crop rotation.

Always monitor weed control effectiveness and investigate any occurrences of poor effectiveness. If unexplained contact your agronomist who may consider a resistance test appropriate.