Copper strips that extend an inch or
more below and above the soil line will keep out slugs
and snails. The copper band generates an electrical
charge that is large enough to deter slugs.
Make
sure you inspect perimeters daily, remove any leaves or
branches over the copper band as snails and slugs will
use this material for a bridge to cross the copper.
Please note copper bands have sharp
edges, you can prevent accidents to children or pets by
simply folding the visible edge with a pair of pliers.
If you have problems obtaining copper strips
then try this method contributed by: Sterling
Take a few inches of copper wire out of an
electrical flex. Twist this around your finger so it
forms a coil of 2/3 turns.
Pull it apart
slightly so the threads are overlapped and tangled to
form a more complete barrier.
Place this around
the bottom of the main stem leaving plenty of space for
growth.
