Dear
Following my last email, I’ve had a large number of replies about slug pellets so I wanted to clarify the situation and correct some of the misinformation on the web.
Back in 2018 DEFRA who are responsible for licencing pesticides and weed killers removed approval for metaldehyde based slug pellets. Because they hadn’t followed the proper procedures they rescinded the ban following a legal challenge.
Then they followed the proper procedures and it was again de-licenced. It was no longer legal to manufacture as a slug pellet from 31st March 2021. Onward sale was allowed until 31st March 2022 so stocks held by distributors and retailers could be cleared.
As of 1st April 2022 you can no longer buy slug pellets based on Metaldehyde. You can still buy buy the Ferrous Phosphate based slug pellets and there are no plans to de-licence these. Ferrous phosphate based pellets are approved for organic use in the UK and many EU states.
I’ve used the ferrous phosphate pellets for over 10 years now. I think they are more effective than the old metaldehyde based pellets and more rain resistant. Uneaten pellets eventually dissolve and add their nutrient content to the soil.
With the metaldehyde pellets, the dying slugs leave heavy slime trails and are often found on the surface. Ferrous phosphate just stops the slugs eating and they go off to die under the surface. Because you don’t see dead slugs, some people think the organic pellets don’t work but they do.
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