Marigolds – The marigold is probably the most well-known plant for repelling insects. French marigolds repel whiteflies and kill bad nematodes. ... If you choose marigolds for your garden they must be scented to work as a repellant. And while this plant drives away many bad bugs, it also attracts spider mites and snails.

What pests do marigolds repel?

The marigold is one of the most well-known insect-repelling plants and with good reason — they have a scent that will keep pests like mosquitoes, nematodes like cabbage worms, and other pests away. Plant marigolds to attract beneficial insects that attack and kill aphids. Ladybugs are especially fond of aphids.

How do you use marigolds for pest control?

Planting Marigolds for Pest Control

Plant marigolds generously for control of pests around vegetables and ornamental plants. Arrange the marigolds any way you like. For example, plant marigolds around the perimeter of the garden, in rows between rows of vegetables, or in groupings.