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Information @ a Glance

General Information

  • Metaldehyde is an organic compound with the formula (CH3CHO)4.
  • Metaldehyde is a white crystalline substance isomeric with, and obtained from, acetic aldehyde by polymerization, and reconvertible into the same.
  • Metaldehyde (C8H16O4) is not a complicated chemical. In its base form, it is a white crystalline powder that does
    not dissolve in water.


  • Metaldehyde is a selective pesticide used by farmers and gardeners to control slugs and snails in a wide variety of crops.
  • It is commonly used as a pesticide against slugs, snails, and other gastropods.
  • Metaldehyde is also used as a camping fuel.
  • Metaldehyde is used in Washington table beet seed production.
  • Metaldehyde is a molluscicide used to control snails and slugs on a wide variety of sites in agriculture and home gardens, including fruit and vegetable crops, ornamentals, lawns and turf.


  • More recently, other companies in the midlands, eastern, south east and south of England have detected metaldehyde in raw waters.
  • Metaldehyde is the active ingredient in most snail and slug baits, and has been in use in Australia for many years.
    Farmers apply around 250 tonnes of metaldehyde (an active substance in slug pellets) to agricultural land every year. It helps to protect cereal, oil seed rape and other crops from slug damage.
  • Metaldehyde is contained in slug pellets used by 80% of farmers applying a molluscicide as part of their
    control strategy for the UKís most damaging pest. It is reported that slugs account for 70% of all crop pest
  • Metaldehyde is a very important chemical in grass seed production in western Oregon. It is estimated that 185,000 of Oregonís 490,000 acres of grass seed are treated with metaldehyde each year.

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