There are all sorts of weird and wonderful things available for slug control on the organic market now. One that springs to mind is a band of copper that gives the slugs electric shocks. If using a barrier method with slugs remember that success depends on you being extremely generous with the chosen deterrent and not skimping. For more information on the control of slugs please see our slug leaflet. Another popular method of protecting your plants is to use traps.
Sticky traps are very popular with the organic gardener.
A codling moth trap, for example, uses a pheromone placed on a sticky floor. The male moth is attracted to the trap thinking it is a female. On landing he gets stuck in the glue. There are similar traps for pear and plum moths. Greasebands, painted around the trunks of apple trees in autumn are a popular way of preventing the wingless female winter moth from climbing up the tree to mate.