As temperatures drop and the soil gets cold, it is possible that slug activity could increase to cause damage to winter crops. Slugs have already caused some serious problems this winter and they can do so again. Growers will be aware that metaldehyde is now the main chemical active in the market, but have you ever wondered how old that active is or where it originates from?

Its history is interesting and associated with a country that most Europeans would not associate with chemicals, given its environment and agricultural systems. It is produced in Switzerland by a company called Lonza in the town of Visp, which is located to the east of Lake Geneva in a valley of the Rhone river. Indeed, the Rhone is important to the plant because its cold glacial waters are used to cool many of the processes ongoing in the plant.