What do aphids look like on citrus trees?

Aphids are small (1/16 to 1/8 inch), pear-shaped insects that cluster on new growth — tender shoot tips, young leaves, and flower buds. Common Arizona citrus aphid species are dark brown to black or yellow-green.

How do I get rid of aphids on my citrus tree without chemicals?

A strong jet of water from a garden hose knocks aphids off leaves and kills many of them. Repeat every 2-3 days for 2 weeks. Insecticidal soap and neem oil are also effective organic options. Give natural predators (ladybugs, lacewings) time to build up.

Why are there ants on my citrus tree?

Ants are attracted to the honeydew that aphids excrete. Ants actively protect aphid colonies from natural predators in exchange for this food source. Apply a sticky barrier (Tanglefoot) around the trunk to prevent ants from climbing up.

Aphids on Citrus Trees in Arizona: Control Guide

Back to Blog10 min readPinal County, AZ

Aphids are one of the most common citrus tree pests in Arizona. Learn how to identify them, understand the damage they cause, and control them effectively.