Managing Aphids on African Violets

Managing Aphids on African Violets

A gardener found tiny black granule-like insects on their African violet leaves, suspecting aphids. The plant was otherwise healthy and about to bloom for the third time.

Identifying Aphids

Aphids are small (about 1/8 inch), pear-shaped insects that can be green, yellow, brown, red, or black. They have six legs, antennae, and are usually wingless. They cluster on leaf undersides and excrete honeydew, which can attract ants and promote sooty mold. Shed white skins from nymphs may also be visible.

Symptoms of Infestation

• Yellowing and curling leaves
• Wilting and distortion
• Stunted new growth

Control Methods

Natural & Biological

For light infestations, remove aphids manually with fingers or tweezers. Introduce beneficial insects like ladybugs or lacewings for biological control.

Chemical

Insecticidal soap (e.g., Safer's) is effective and safe for African violets. For severe cases, products containing pyrethrins, malathion, or diazinon can be used, but always follow label directions and ensure the product is labeled for African violets. Spray leaf undersides thoroughly.

Aphids rarely kill African violets but can spread viruses, so prompt control is wise.