Aphis gossypii

Cotton aphid

Description

Aphis gossypii, commonly known as the cotton aphid or melon aphid, is a sap-sucking insect from the family Aphididae. This cosmopolitan species thrives in tropical and temperate regions worldwide, including Europe, where it survives outdoors in the south and in greenhouses in northern areas. It is highly polyphagous, feeding on a wide variety of plants, such as cucurbits, citrus, cotton, hibiscus, and ornamentals. The aphid’s feeding weakens plants by extracting sap, leading to yellowing, leaf curling, and reduced photosynthesis. Excreted honeydew promotes sooty mold growth, further diminishing the plant’s aesthetic and health status. Aphis gossypii also transmits several plant viruses, including cucumber mosaic virus, making it a significant pest in agriculture. With rapid reproduction, producing multiple generations per year, this aphid can quickly establish dense colonies, especially in protected environments like greenhouses.

Symptom

Infested leaves become yellow, curled, and distorted. Colonies of small green aphids are visible on the underside of leaves, often accompanied by sticky honeydew and sooty mold development.

Tree Species: Elm, Citrus, Gooseberries, Hawthorn, Firethorn, Pear, Apple Tree, Maple, Raspberry, Mulberry, Horse Chestnut, Currant, Rose

Part of a plant- attacked: Leaf / Needle

Pest significance: Very harmful

Pest Category: Insects