Salad with a Side of Slug Growing lettuce is rewarding but sometimes it comes with more than you bargained for! The joy of growing your own greens
09.09.2024 - 10:00 / theunconventionalgardener.com / guest / Eco Garden
Header image: Slug Advancing by Maxime THIBAULT from Pixabay
Christopher Terrell Nield, Nottingham Trent University
Slugs. They eat your lettuces, chew your cabbages, defoliate your dahlias and assassinate your asters. Even the name “slug” is unpleasant. It comes from the Middle English “slugge”, from a Norwegian word for a heavy, slow-moving or sluggish person. Slugs clearly have an PR problem, so let’s try and put things right.
First, they have a wilder lifestyle that some people give them credit for. Most land-based gastropods, (a class of molluscs slugs belong to) are hermaphrodite, meaning an exchange of sperm fertilises both partners. They also have some extraordinary mating rituals. Leopard slugs, for example, descend from a branch on a mucus rope and entwine their bodies as they copulate.
That mucus allows them to ascend and cling to vertical surfaces like champion rock climbers. Mucus is mostly water but with carbohydrate and an absorbent protein. It absorbs moisture from the air which stops it evaporating. Mucus is secreted from the foot and acts like a glue when at rest, but liquefies when muscular stress is applied as the slug moves. When stress is removed the mucus re-solidifies.
The slime trail persists as the protein prevents it drying out, and the slug can use it to find its way back to base. Unfortunately, other slugs can follow the trail, and predatory leopard slugs (Limax maximus) may chase and eat them (top speed 0.25cm per second).
Mucus is a pretty amazing substance as it prevents slugs from drying out, makes it difficult for predators to grasp them, and contains a complex cocktail of protective molecules. These provide tissue hydration, microbial defence, and in some species a protective layer for their
Salad with a Side of Slug Growing lettuce is rewarding but sometimes it comes with more than you bargained for! The joy of growing your own greens
Are you curious about how to get rid of slugs naturally? Slugs and snails might be lovable for their cute storybook-character looks and because they’re just cool creatures. But slugs and snails in the garden that are eating away at your plants are not so lovable: Along with those adorable optic tentacles comes a voracious mouth that files through leaves and fruit, ruining it for the rest of us.
Slugs are a common garden pest, notorious for wreaking havoc on plants and crops. They leave unsightly trails of slime and damage leaves, stems, and roots, which can significantly reduce garden yields. Traditional chemical pesticides can be harmful to the environment, beneficial insects, and even pets. However, a natural and effective alternative exists in the form of nematodes, specifically Phasmarhabditis hermaphrodita, which offer an eco-friendly solution to slug control. Understanding Nematodes
Q: We have a small back garden that includes an old wall covered in ivy. I love the ivy, but it has become home to an army of slugs that have eaten many of my plants over the years. I have tried many different things to combat the slugs (ground eggshells, coffee grinds, various different pellets), none of which have really made that much difference. I am also concerned about using products that may harm the birds that visit the garden and our dog. At this stage, I think I have to accept that the slugs are part of the garden and learn to live with them. So, I would like to look at planting some small shrubs and flowers that are not appealing to slugs. I would be grateful for some suggestions. JM
Q: My garden is suffering very badly from snail and slug damage this spring after all the wet weather. Are there any plants that they don’t like to eat that you could recommend?
Slugs and snails can wreak havoc in the garden, demolishing seedlings and decimating the leaves of larger plants such as hostas. While slug pellets are an effective deterrent, those containing metaldehyde can harm hedgehogs and other wildlife, while other forms of slug control can be time consuming and aren’t guaranteed to work.
There are many ways you can keep your slug population under control without resorting to toxic slug pellets:
For two glorious years, this garden was cat-free. And then just at the point where the garden was mostly ‘finished’ and all I needed to think about was playing with plants, a feral cat moved into the neighbourhood. And started leaving ‘gifts’ in the raised beds.
Trevor George, King’s College London
Slugs are acclaimed agricultural pests, but it’s a little known fact that there exists another, more controversial theory. It claims that the sluggish unwanted dwellers attack plants with rotting spots, caused by pathogen sponges, whereas the snails happen to be the surgical doctors, removing the sick matter. A revolution in the traditional concept?
Not so long ago my Hostas were in fine flowering fettle. Now as Autumn approaches the slugs and snails are making a meal of the soft juicy leaves that are starting to give up the ghost.