Introduce Beneficial Insects

Attract or release predatory insects into your garden to naturally suppress pest populations. Ladybugs consume large quantities of aphids, green lacewing larvae feed on aphids, mealybugs, and small caterpillars, and parasitic wasps lay eggs inside specific pests like hornworms and aphids, killing them from within. Plant companion flowers such as dill, fennel, yarrow, and sweet alyssum to provide nectar and habitat that sustains beneficial insect populations over time.

Why It Works

Biological control leverages natural predator-prey relationships. A single ladybug can consume over 5,000 aphids in its lifetime. Once established, beneficial insect populations self-regulate -- they increase when pest numbers rise and naturally decline when food becomes scarce, creating a sustainable balance without chemical inputs.

Tips

• Release purchased insects in the evening when they are less likely to fly away immediately
• Water the garden before releasing so insects have moisture available
• Avoid broad-spectrum pesticides that kill beneficials along with pests
• Plant a diverse mix of flowering plants to support different predator species year-round
• Be patient -- establishing a stable beneficial population takes one to two seasons