Beat Garden Slugs With Sandpaper

You can use the scratchiness of silicon carbide sandpaper to discourage slugs in your raised bed garden.


| April/May 2011



Garden Slugs

A bed edging of rough silicon carbide sheets creates a low-key barricade against garden slugs.


PHOTO: RAYMOND SPENCER

After numerous years of battling with slugs feeding on my garden foliage, I became obsessed with finding a permanent way to defeat them. My persistence eventually paid off when I began concentrating on the “scratchiness” approach. Here’s how it works. (Note: This method requires raised beds.)

First, purchase a common hardware product known as silicon carbide. Its purpose is to sand drywall spackle, and it comes in boxes of 50 sheets — 4 1⁄4 inches wide by 11 1⁄4 inches long — in 80 grit. You’ll also need a box of stainless steel staples and a staple gun. Now, cut the sheets in half lengthwise using a utility knife, then staple them end-to-end to the uppermost sides of your raised beds.

Make sure you purchase silicon carbide sheets that are waterproof — some types are and some aren’t. When applying these sheets, be certain to staple them tightly against the raised bed frames: Do not leave any gaps for slugs to crawl “under” these barrier sheets.

This method has worked magically for me, and I can honestly say not a single slug has crossed these barriers! To make a good thing even better, I only have to replace the silicon carbide sheets every four years.

Raymond Spencer
Lyman, Maine

evan thai
4/1/2012 4:09:20 AM

You could mulch with those spiky fruits from sweet gum trees to impale them!


mnice2
4/28/2011 8:58:15 PM

we always put beer bottles around the vegetable garden, with a splash of beer, the slugs go in, and die, we get rid of the bottles when they are full, so no one drinks em again!






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