The claim is that slugs and snails are attracted to cornmeal and after eating it, the cornmeal expands and kills them. What a simple organic method for getting rid of slugs, but does it work?
Do Slugs Eat Cornmeal?
Yes, they seem to love the stuff.
Does Cornmeal Kill Them?
The simple answer is no. In fact cornmeal is commonly fed to snails to purge them of toxic material before eating them. They need to stay alive and healthy for this process to work.
It is not clear where the idea of exploding snails comes from but it is a common belief for several different pests including ants and earwigs. I don’t know of a single pest that explodes after eating something. Just because dry material expands when it gets wet does not mean that an animal’s digestive system is not able to handle it.
Corn Gluten Meal
Don’t confuse the cornmeal with corn gluten meal. Corn meal is the yellow granular material sold in grocery stores, and corn gluten meal is sold at the hardware store for feeding lawns and preventing seed germination.
Getting Rid of Slugs and Snails
There are all kinds of methods for getting rid of snails and I have reviewed several of these including:
- Eggshells Control Slugs – Do They Really Work?
- Getting Rid of Slugs With Coffee Grounds
- How To Get Rid of Slugs With Beer
- How to Get Rid of Slugs With Copper
- How to Get Rid of Slugs with Diatomaceous Earth
- Photo source; madame.furie