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Cinara aphids are sap-feeding insects that primarily infest coniferous trees, such as pine and spruce, posing risks to their health and growth. Cinara aphids are a genus of aphids that belong to the family Aphididae. The aphids in this genus are large and are commonly known as the giant conifer aphids or large bark aphids.
Most aphids in California's mild climate reproduce asexually throughout most or all of the year with adult females giving birth to live offspring—often as many as 12 per day—without mating. Young aphids are called nymphs.
The picture below on the left shows a Cinara pruinosa (the aphid with the prominent black siphuncular cones) with a Cinara piceicola ovipara (with pericaudal wax ring) and two apterae, on spruce in October.
Cinara fornacula feeds at the base of the needles on current-year twig growth of several species of spruce, including white spruce (Picea glauca), black spruce (Picea mariana), blue spruce (Picea pungens) and red spruce (Picea rubens). These aphids are usually found in small numbers, and do not form large colonies.
Cinara pilicornis, the spruce shoot aphid or brown spruce shoot aphid, is an aphid species in the genus Cinara found on Norway spruce (Picea abies) and Sitka spruce (Picea sitchensis). It is a quite large aphid species with a plump, dull brown body.
greater black spruce bark aphid (Cinara piceae) Identification, biology, distribution, host plants, natural enemies, damage caused. Creative commons images.
1 lip 2023 · Two genera of the subfamily Lachninae, i.e. Cinara, the conifer aphids or giant conifer aphids, and Eulachnus, are well known as forest pests. Cinara species (≈150) are widespread in the Northern Hemisphere.
