Cinara tujafilina

Cypress pine aphid

Description

Cinara tujafilina, commonly known as the cypress pine aphid or thuja aphid, is a broadly oligophagous species that primarily infests members of the family Cupressaceae, including Thuja spp., Cupressus spp., and Juniperus spp. The aphids are reddish-brown with bluish-white wax and typically inhabit foliated branches or the undersides of twigs near the trunk. During winter in colder climates, they migrate to the roots of host plants. This species reproduces parthenogenetically and produces multiple generations throughout the year.

The cypress pine aphid reduces the aesthetic and functional value of its host plants by extracting sap, which causes browning of foliage, branch dieback, and excessive honeydew production. Honeydew accumulation attracts ants and secondary pests, as well as supports the growth of sooty mold. Cinara tujafilina is virtually cosmopolitan but thrives in warmer regions, particularly around the Mediterranean.

Symptom

Infested branches exhibit browning foliage, sticky honeydew accumulation, and sometimes sooty mold. Colonies of reddish-brown aphids with bluish wax are visible on the branches or near the trunk.

Tree Species: Cypress, Thuja

Part of a plant- attacked: Leaf / Needle, Branch

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes