Is said to repel cucumber beetle. Rhubarb Pieces of rhubarb planted under the roots of Brassica seedlings are said to deter club root. Beneficial insects and creatures. There are some creatures and insects that should be encouraged into your garden. Consume large numbers of caterpillars and overwintering aphids.
Centipedes Eat slugs eggs.
Consume numerous garden pests such as slugs, aphids and mosquitoes. Nearly all species of Carabidae are predators on a number of pests, notably slugs, snails and caterpillars. Hedgehogs Eat pests such as slugs and millipedes. Larvae destroys aphids. Slow worms Predators of slugs and other pests.