They will however feed during the day in moist shady locations. Their movement is highly dependant upon moisture availability. They move by sliding forward on a trail of secreted slime. The slime has a silvery appearance and is often used to detect an infestation. The most common type of outdoor slug in our region is the grey garden slug, Deroceras reticulatus.
All slugs are similar in general appearance but vary in colour and length.
Slugs will feed on a variety of animal, green plant and fungal materials. Succulent fruit and tender leaves are their preferred hosts but slugs will also feed on root crops such as carrots and potatoes. Eggs are colourless and deposited beneath the soil surface, making them very difficult to detect. Newly hatched slugs are also small and transparent making their presence easily overlooked. Because of this, slug eggs or young slugs can enter the garden on new plants or in soil materials.