Aphids

Clusters of small green, black, or gray insects gather on young leaves and stems. Leaves may curl, become distorted, or turn yellow. Sticky honeydew may appear on the plant.

Warm weather, excessive nitrogen fertilizer, and lack of natural predators encourage aphid populations.

Spray plants with water to remove aphids, apply insecticidal soap or neem oil, and encourage beneficial insects such as ladybugs.

Inspect plants regularly, avoid excessive nitrogen fertilizer, and encourage beneficial insects in the garden.