A ban on the outdoor use of metaldehyde, pesticide used to control slugs in a
range of crops and in gardens, is to be introduced across Great Britain from the
30th June 2020. the Environment Secretary announced on the 19th December
2018.
The decsion to prohibit the use of metaldehyde, except in permanent
greenhouses. follows advice from the UK Expert Committee on Pesticides [ECP]
and the Health and Safety Executive [HSE] that metaldehyde poses an
unacceptable risk to birds and mammals, also the risk to contamination of
water supplies.
Slugs can cause significant damage to plants and crops, particularly potatoe,
cereals and oil seed rape. However, there are other ways to mitigate their
impact through soil preparation. For example, sowing the seed deeper into the
soil may prevent the slugs from reaching them. There are also alternative
pesticides containing ferric phosphate which provide effective control of slugs
and snails without carrying the same risks to wildlife.
Environment Secretary Michael Gove said "I recognise that significant effort has
been put into encouraging growers and gardeners to use this pesticide responsibly
by the Metaldehyde Stewardship Group However, the advice is clear that the risks
to wildife are simply too great
- and we must all play our part in helping to protect the environment. I encourage
companies and growers to look at the alternatives, such as ferric phosphate, which
is authorised and does not carry similar risks"
The outdoor use of metaldehyde will be phased out over 18 months to give
growers time to adjust to other methods of slug control. It will be legal to sell
metaldehyde products for outdoor use for the next six months, with use of the
products then allowed for a further 12 months.
The new restrictions on metaldehyde will also reduce the possibility of the
pesticide contaminating drinking water sources. Although this was not a
factor in the advice from ECP and HSE. The restrictions will help water
companies continue to meet our robust drinking water standards
The NAS are aware that the Environment Secretary has been asked to give the
whole of the 2019 season for the retailers to meet their obligations. The Crop
Protection Association have suggested the end of September 2019, however, to
date no amendment has been made.
Liz Bunting
National Allotment Society
Ban on the use of metaldehyde slug pellets