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The Cinara pruinosa alate (see third picture above) is brown or green with a pattern of white wax spots down the midline and along the sides of the dorsum. Cinara pruinosa oviparae are somewhat smaller than the viviparae and have a pericaudal wax ring (see picture below in life cycle section).
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.
Cinara obscura is monoecious on spruce (Picea), specifically white spruce (Picea glauca) and Engelmann's spruce (Picea engelmannii). Bradley (1953) first described the species after finding them in colonies on the bark of the lower stems of small white spruce growing close together in seed-beds.
greater black spruce bark aphid (Cinara piceae) Identification, biology, distribution, host plants, natural enemies, damage caused. Creative commons images.
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.
20 sty 2009 · We studied whether the mutualism between wood ants and Cinara aphids affects the growth of boreal Norway spruces ( Picea abies L. Karst.) in stands of different ages.
Aphids of the genus Cinara, feeding on Norway spruce, excrete copious amounts of honeydew, a carbon-rich waste product, which accumulates locally on needles and twigs. We investigated the role of honeydew as a potential source of energy which might promote the growth of micro-organisms in the phyllosphere of conifer trees.
