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greater black spruce bark aphid (Cinara piceae) Identification, biology, distribution, host plants, natural enemies, damage caused. Creative commons images.
- Cinara pruinosa (Wax-bordered Spruce Aphid) identification, images, ecology
Cinara pruinosa occurs in small colonies on the woody twigs...
- Aphids on spruce: identification, images, ecology and control
The Cinara pruinosa alate (see third picture above) is brown...
- Cinara pruinosa (Wax-bordered Spruce Aphid) identification, images, ecology
Cinara pruinosa occurs in small colonies on the woody twigs of Spruce (Picea species) in spring, but later found at base of trunk and on roots in ant shelters. Oviparae and alate males occur in September-October, but anholocyclic overwintering on roots also occurs.
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).
Detection: Cinara aphids are quite large compared to other aphids and tend to form colonies, so they can be visually spotted on the bark or needles of trees, particularly during the warmer months when they are active. Signs to look for include clusters of large, dark aphids on the tree, often associated with the presence of honeydew or sooty mold.
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. It seems to have little effect on the tree.
Greater Black Spruce Bark Aphid Cinara piceae. Greater Black Spruce Bark Aphid. Filter by Place. View More. TOP OBSERVER.
17 paź 2003 · Spruce shoot aphid, Cinara pilicornis Hartig (Homoptera: Lachnidae), is an aphid species that has shown enhanced performance on trees exposed to SO2 or mixtures of air pollutants, whereas results with ozone have been contradictory.
