Your seedlings are on the menu, and you didn't make the reservation

You've spent weeks nurturing your seedlings, preparing your veggie beds and waiting for Melbourne to decide which season it's having.

And just as your little plants are settling in, somebody starts eating them.

One morning your lettuce looks lovely. The next, it's resembling a piece of Swiss cheese. Your basil has vanished, your zucchini leaves are full of holes, and something appears to have enjoyed an all-you-can-eat buffet overnight.

The cheek of it.

After another week of cool, damp weather in Melbourne, it's worth checking who's been sneaking into the veggie patch after dark.

Snails and slugs are prime suspects. But they're not the only ones.

Here's how to catch the culprits, protect your precious seedlings and avoid declaring chemical warfare on the entire garden.

Melbourne's weather is setting the table

If you've been following Melbourne's spring weather, you'll know it's been a rather confused affair.

After teasing us with temperatures above 30°C in late October, things have cooled down considerably.

Last week, Melbourne recorded 20 mm of rain, with temperatures struggling to reach 16°C on Saturday.

And while the weather has warmed briefly this week, the forecast points to the possibility of more showers heading into the weekend.

All that moisture can create inviting conditions for some of our less welcome garden visitors.

Snails and slugs generally prefer damp conditions and are particularly active at night, when they're less exposed to drying out.

For gardeners who have recently planted tender lettuce, basil, beans, zucchini or other summer vegetables, it's a good time to pay attention.

That doesn't mean every Melbourne garden is crawling with pests. But if something's been nibbling your seedlings, now is an excellent time to investigate.

First, identify who's been eating your plants

Before you rush out to buy snail bait, take a closer look at the crime scene.

Different garden pests can cause similar damage, and identifying the culprit is half the battle.

Snails and slugs: Irregular holes in leaves, ragged edges and silvery slime trails are useful clues. Young seedlings can sometimes be eaten almost entirely.

Slaters and earwigs: These garden residents can also chew tender seedlings, particularly around stems and young growth. Damage near the base of a plant may be worth investigating.

Caterpillars: Chewed leaves and small dark droppings can point towards caterpillar activity. Check the undersides of leaves for the offenders themselves.

The important thing to remember is that a hole in a leaf isn't a diagnosis.

Sometimes several creatures are sharing the same garden, and the pest you spot first isn't necessarily the one responsible.

Time for a little detective work

If your seedlings seem to be disappearing overnight, grab a torch and head outside after dark.

Yes, we're suggesting you spend your evening investigating suspicious activity among the lettuce. Gardening is a glamorous pursuit.

Snails and slugs often emerge during damp evenings, making this a particularly useful time to catch them in the act.

Check under leaves, around the base of plants, beneath pots and in sheltered spaces around mulch, rocks and timber.

Look for slime trails, fresh damage and any suspiciously well-fed visitors.

An early morning inspection can also reveal clues before the evidence dries up.

And if you find a snail sitting next to your half-eaten basil? Well, you've probably got a reasonably promising lead.

So, how do you stop snails eating your seedlings?

The good news is that protecting young vegetables doesn't necessarily require spraying or scattering pellets around the garden.

A few simple, targeted measures can go a long way.

1. Remove the culprits by hand

It might not be the most glamorous gardening job, but checking plants after dark and collecting feeding snails and slugs can help reduce damage.

Concentrate on the plants that are actually being attacked rather than treating the entire garden.

Check again over subsequent evenings to see whether the damage has slowed.

2. Build your seedlings a little fortress

Young plants are particularly vulnerable because they don't have much foliage to spare.

One clever solution recommended by ABC Gardening Australia involves repurposing old plastic nursery pots.

Simply remove the bottom of a pot and place the remaining collar around your seedling, pushing it a couple of centimetres into the soil.

This creates a physical barrier that can help protect tender stems from ground-dwelling pests.

Leave the top open for light and airflow, and remove the collar once your plant is established.

It's inexpensive, reusable and considerably less dramatic than launching an all-out war on the garden's inhabitants.

3. Consider copper tape

Copper tape can help deter snails and slugs from crossing into protected areas.

It's particularly useful around suitable plastic pots and timber raised beds, although it's not a guaranteed solution.

One important warning: avoid applying copper tape directly to corrugated iron garden beds, where it can contribute to corrosion.

And remember to inspect the plants and soil inside your barrier first. There's not much point locking the front gate when the burglar's already in the kitchen.

What about eggshells, coffee grounds and snail bait?

Ah, the wonderful world of gardening remedies.

You've probably heard that crushed eggshells, coffee grounds or other kitchen leftovers can create an impenetrable fortress around your vegetables.

Unfortunately, the evidence isn't particularly encouraging.

As for snail bait, it's worth being particularly cautious, especially if you share your garden with pets or visiting wildlife.

Some snail and slug baits can cause serious poisoning in dogs and other animals.

Products marketed as pet-friendly aren't necessarily harmless if eaten in quantity.

If you're considering bait, check the ingredients, ensure the product is suitable for your situation, follow its label and prevent animals from accessing it.

Whenever practical, start with observation, physical protection and targeted removal.

Not every nibble is a gardening emergency

Here's something worth remembering before you start treating every creature in your vegetable patch as public enemy number one.

Gardens are ecosystems, not sterile production facilities.

A few holes in an established lettuce leaf aren't necessarily cause for concern. Many garden creatures play useful roles in breaking down organic matter or supporting other wildlife.

The real concern is when repeated feeding threatens to destroy young seedlings before they have a chance to establish themselves.

The goal isn't to eliminate every creepy-crawly. It's to protect your plants while keeping the wider garden healthy.

And sometimes, if your vegetables are growing strongly and the damage is minimal, the best course of action is to leave things alone.

Keep an eye on your seedlings this weekend

With more unsettled weather possible across Melbourne, now's a good time to give your newly planted vegetables a quick inspection.

Check for fresh damage, investigate the likely culprit and protect any especially vulnerable plants.

Remember that your garden's conditions matter. A damp, sheltered vegetable bed may attract different visitors from a sunny balcony full of pots.

And what works for one gardener won't necessarily be right for another.

That's the thinking behind Eden, our smart gardening companion designed to help you understand what's happening in your garden and work out what to do next.

Because your seedlings have enough to contend with during Melbourne's unpredictable spring.

They shouldn't have to provide dinner for the entire neighbourhood.