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Avadex Factor Best Practice


Always organise filling and cleaning to avoid point source pollution.

Check the spraying equipment is in good working order. Use the National Sprayer Testing Scheme (NSTS) and operator checklist.

Try to ensure that field areas to be treated are measured accurately and that you load the correct amount of Avadex Factor and water into the spray tank. This will minimise the requirement to dispose of excess spray solution.

Mixing and handling is best done on an impermeable surface where drainage is collected and drained to grass/soil (apply to vegetated land in line with a groundwater permit) or via a lined biobed.

Do not use the field entrance as a filling point if it is adjacent to a watercourse or to any area, such as a road, track or other feature, which could channel run-off water to a watercourse.

When handling Avadex Factor the operator must wear suitable protective clothing, such as coveralls, and suitable protective gloves.

Shake cans before use to disperse any settled material. This will help when rinsing.

Always fill using the induction bowl.

Pressure or triple wash containers and drain into the induction bowl. Most induction bowls are fitted with can rinsing devices.

Induction Bowl Rinsing Device

Rinse seals and lids over the induction bowl. Keep any cardboard clean.

Store empty containers safely and upright after use.

Follow your disposal contractor’s advice on segregating clean packaging material and ensure all packaging materials including seals and lids are correctly disposed of/recycled.

Check for drips and leaks before leaving the mixing area.

Any spillages must be carefully cleaned up immediately. 


When applying Avadex Factor the sprayer must be fitted with a minimum of 3-star DRT nozzles and, additionally, the product must not be applied within 5m of the top of the bank of a static or flowing water body, or within 1m of the top of a ditch which is dry at the time of application.  These distances cannot be reduced.

During application regularly check for any blockages, drips or leaks.

Do not apply when windy – i.e. Force 4 and upwards.

Take extreme care to avoid spray drift onto any adjacent non-target crops or plants.

Do not apply Avadex if the ground is frozen, waterlogged or if heavy rain is expected within 48 hours of application. Do not apply Avadex to dry, cracked soils.

Apply to headlands last to avoid driving over the treated area and picking up Avadex on tyres. Clean mud from tyres before leaving the field, keep tyres as mud-free as possible, as mud on tyres can move Avadex and other crop protection products out of the field.


Following the completion of spray operations, the outside of the sprayer should be thoroughly cleaned, and the spray-tank cleaned using a triple rinse procedure, with the addition of a proprietary tank-cleaner as part of the final rinse operation.

The sprayer may be washed down in the field, over a lined biobed or over a concrete area where the liquid drains to a lined biobed or a sump for future disposal. Internal tank rinsings may be sprayed onto an untreated part of the crop saved for that purpose or applied to the treated crop provided the maximum label dose is not exceeded.

Always clean sprayers away from watercourses and drains.


Following this guidance will help ensure safety to the operator and, importantly, to the environment, in particular to water.

Always follow the Voluntary Initiative H2OK? Keep it clean guidance.

For further advice and guidance visit


USE PLANT PROTECTION PRODUCTS SAFELY. Always read the label and product information before use. For more information visit  Avadex® contains tri-allate.  Avadex is a registered trademark used under licence by Gowan Crop Protection Ltd.  All trademarks duly acknowledged.