Natural Pest Control: 7 Organic Ways to Stop Aphids, Slugs, and Hornworms

The moment you spray broad-spectrum synthetic pesticides, you kill not just the nuisance pests, but also the ladybugs, hoverflies, lacewings, and parasitic wasps that keep nature in balance. Organic gardening works with ecological pressures rather than against them.

The 2-Minute DIY Castile Soap Aphid Spray

Mix 1 tablespoon of pure unscented liquid Castile soap into 1 quart of warm water. Spray directly onto clusters of aphids, spider mites, or whiteflies on the undersides of leaves. The soap dissolves the waxy protective cuticle of soft-bodied insects, causing them to dehydrate rapidly without harming the plant.

Companion Planting: The Living Bug Repellent

Interplant pungent French marigolds, sweet basil, and dill between your brassicas and nightshades. Marigolds emit airborne terpenes that mask vegetable scents, while flowering dill attracts miniature parasitic wasps whose larvae devour hornworms.