Barriers like copper tape, prickly brushes, and electric fencing can be used to keep slugs and snails out of vegetables. Very dry materials such as gravel, sand, or cinders will work at getting rid of garden slugs. · hand picking is the most effective and low-impact way to control slugs and snails, best done at night or early morning and must be done regularly. Slugs do not like to crawl across anything too dry, which is one way you can keep slugs off cabbage. Here’s what you can do to keep cabbageworms , cabbage loopers, and slugs off your tender seedlings—without using sprays or poison. To prevent the appearance of slugs on the site, you should avoid the accumulation of construction waste or a large number of weeds. Ash and cinders make a rough protective barrier, and the fine ash also acts as a desiccant that dries the slug out. When these options are used in combination, they can be extremely effective. · while slugs can be fearsome and voracious foes, there are a number of techniques you can use to protect your cole crops. Slugs and caterpillars both eat cabbages and the key to protecting cabbages is determining which pest is destroying your crop. · break up the empty egg shells into small (ish) pieces and place around the flowers, plants, vegetables, and fruits you want to keep safe from slug damage. · protecting cabbages from slugs requires choosing the right ground cover and keeping the garden area clean. Slugs also do not like plants with bright aromas - sage, chamomile, dill, rosemary, fennel. Cabbage , kale, and broccoli are cool-season crops, which means many people start planting them in spring. Lets look at getting rid of garden slugs from your cabbage patch.