Yes, cinnamon can help deter slugs and snails in the garden because they dislike its strong smell and texture, causing them to turn back, but it needs frequent reapplication, especially after rain, and might be less effective long-term than other methods like copper or beer traps. Sprinkling ground cinnamon or using a cinnamon oil spray around plants creates a barrier, but it's considered a deterrent rather than a killer, though its cinnamaldehyde content disrupts insects.
According to House Digest, the spice acts as a natural repellent and sticks to the moist bodies of slugs, causing them to turn back. It also works as a deterrent for ants and gnats. For even more impact, gardeners can mix 20 drops of cinnamon oil with two cups of water in a spray bottle.
Copper tape. The use of copper is also believed to be a good remedy for slugs. Copper is considered to be a natural slug repellent as the mucus they secrete from their body (their slime) reacts with the metal, producing a tiny electric shock.
Cinnamon can also protect plants from ants, fungus gnats, mites, aphids, mosquitoes, fruit flies, and wasps. “[It] contains cinnamaldehyde, which disrupts the nervous system of insects, making it difficult for them to move, find food, or locate mates,” she adds.
🦟Fruit Fly Deterrent. For a fruit fly free fruit bowl, just place a couple cinnamon sticks in your fruit bowl and you will be fruit fly free all summer long.
The most slug-resistant plants include foxgloves, lavender, roses and alliums.
Slugs are active for most of the year but are a particular problem in spring, when there's plenty of young growth for them to eat. They are mostly active after dark, especially when it's warm and damp. In hot, dry weather they bury themselves in the soil or hide in cool, dark places to avoid dehydrating.
Slugs are nocturnal, typically feeding from dusk to dawn. They may also feed during rainy or overcast days. During the day, slugs hide in soil crevices and under crop residue, which is why reduced- and no-till fields are at greater risk for damage (Photo 4). They prefer high humidity and temperatures below 70°F1.
Repel Insects
2 While the powder won't kill pests, many gardeners use it to repel them. Sprinkle cinnamon on the soil around your plants to discourage ants, earwigs, and other crawling pests from feeding on them.
Spiritual wellbeing experts explain that the ritual of blowing cinnamon on your front door is believed to bring prosperity, abundance, and good luck.
Natural pest repellent
We've heard of pest-repelling plants, but cinnamon is also an effective natural pest repellent. Be it ants, silverfish, or mosquitoes, these all find the aromatic smell pungent and will keep far away.
The spiciness of chili powder likewise makes it effective for getting rid of slugs and snails, as capsaicin irritates them and provides a burning sensation. As for using chili powder to deter ants, these insects don't like the strong smell.
While most insects are deterred by cinnamon, there are some larger garden pests that also hate the scent of the spice. Rats, mice, raccoons, squirrels, rabbits, moles, and weasels will also stay away when the strong scent of cinnamon is around.
How to stop slugs and snails: what works?
Slugs are less active in the extremes of summer and winter. But in fall, when temperatures cool and rains return, they lay eggs in clusters that overwinter and hatch quickly in spring. “In fall, you're trying to kill them off before they lay eggs,” Groth said.
They seek out damp environments, and feed off mould and algae that can grow in damp conditions. An infestation of slugs can be an early indication of a damp problem, or rot. If you suspect your home is suffering from damp, then it is best to seek professional advice.
They seek moist, shaded areas during sunny days and hibernate in topsoil during cold weather. Indoors, they are attracted to damp areas and leave shiny silvery slime trails.
An immediate option for keeping slugs out is to sprinkle diatomaceous earth around the border of the area. Slugs do not like to cross over territory covered with a rough or sharp texture that diatomaceous earth creates. An even better option is to sprinkle TERRO® Ant Dust around your ornamental plants.
Perhaps more exciting than the positive effect of coffee grounds as a compost and soil amendment, is its potential as a slug killer, Brewer said. Research shows that using a 1% to 2% solution mixed with water as a soil drench caused 100% of slugs to leave the treated soil and subsequently die of caffeine poisoning.
Yes, simple cinnamon is a common and economical tool that you can use to help facilitate repelling these insects. Cinnamon's intense aroma is overwhelming to insects and as a result they will seek a new home and breeding ground away from you.
Scientific studies indicate that cinnamon can inhibit the growth of certain plants, like tomatoes and garden cress.
Witches (and many spiritual or intention-setting practitioners) blow cinnamon through their front door on the 1st of the month as a ritual to attract abundance, prosperity, and good energy into the home.