It is illegal to store or use a pesticide if its approval for use has been withdrawn.

Concentrated Chemicals

Although chemical concentrates will store for two years if kept in cool, dark conditions, it is usually better to purchase ready-to-use sprays for smaller areas, as these keep for just as long and do not need to be mixed. Diluted concentrates can become ineffective after just 24 hours.

• When handling concentrates, always wear gloves.
• Never make up more diluted mix than you expect to use.
• Make sure that you do not exceed the recommended dilution and dose.

Using Chemicals

• Keep a separate watering can or sprayer for chemicals. Make sure that it is marked clearly.
• When applying weedkillers or pesticides, wear gloves, goggles and other protective clothing.
• Use a face mask to prevent inhaling spray.
• If you splash any chemical onto your skin or in your eyes, use plenty of clean water to wash it out or off. Contact your doctor immediately for further advice, making sure that you inform them of the name of the chemical.
• Do not spray in windy weather.
• Do not spray in strong sun, as this may cause foliage damage.
• Make sure that the spray does not drift towards you, edible crops or fishponds.
• After you have finished spraying, wash any exposed skin well.
• Keep pets and children away until the chemicals have dried.

Disposal of Chemicals

• Never dispose of surplus chemicals by pouring them down sinks, drains, toilets or watercourses.
• Any excess pesticides or weedkillers should be diluted and sprayed out onto permitted plants according to the manufacturers' recommendations.
• Dispose of rinsed, empty containers through the normal household waste - do not recycle.
• Dispose of unused chemicals at an official pesticide disposal site.