Pelleting precision guidelines
The maximum application rate 210g metaldehyde a.s./ha. For the additional protection of water, suppliers/BASIS advisers may recommend rates reduced to 160g metaldehyde a.s./ha or less (from any combination of metaldehyde products).
To stay within the maximum MSG rates it is important to vary the rate according to % of the chosen metaldehyde product. The tables below help to make the maximum dose rates more meaningful to operators using different % metaldehyde products.
Please note a six metre no spread zone must be employed adjacent to watercourses.
Dose Rate Calculator 1st Aug to 31st Dec
Metaldehyde dose rates
Using a typical 5kg/ha spreading rate, the dose of metaldehyde applied will vary according to a product's %:
|Product % metaldehyde||Grams of metaldehyde|
Maximum kg/ha of product
Using the tables below, or the dose rate calculator above, operators can work out the maximum kg/ha of products that can be applied during the restriction period and within the calendar year.
1st August - 31st December
Maximum kg/ha of product per calendar year*
|1st August - 31st December|
|210g||4 kg/ha||5 kg/ha||7 kg/ha||14 kg/ha|
|160g||3 kg/ha||4 kg/ha||5 kg/ha||10 kg/ha|
|Maximum kg/ha of product per calendar year*|
|14 kg/ha||17 kg/ha||23 kg/ha||46 kg/ha|
* To stay within 700g metaldehyde maximum per year
Maximum dose rates relate to Metaldehyde Stewardship Group Best Practice Guidelines