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An oak apple on a tree in Worcestershire, England. An oak apple or oak gall is a large, round, vaguely apple-like gall commonly found on many species of oak. Oak apples range in size from 2 to 4 centimetres (1 to 2 in) in diameter and are caused by chemicals injected by the larva of certain kinds of gall wasp in the family Cynipidae. [1]
Articles relating to oak apples (oak galls), the common name for a large, round, vaguely apple-like gall commonly found on many species of oak.Oak apples range in size from 2 to 4 centimetres (1 to 2 in) in diameter and are caused by chemicals injected by the larva of certain kinds of gall wasp in the family Cynipidae.
The gall itself is a typical oak apple gall in appearance, roughly spherical and varies from greenish to reddish or orange depending on host, age and environmental conditions. The galls range in size from a 2–14 cm across and often contain multiple larvae as well as parasites and other species that form a mutual relationship by feeding off ...
Black Oxford Apple. The Black Oxford apple is an antique heirloom variety. It was first discovered in Oxford County, Maine in the late 18th century. The trees are long-lived (over 100 years) and ...
Atrusca bella, also known as the little oak-apple gall wasp, is a locally common species of cynipid wasp that produces galls on oak trees in North America. [1] The wasp oviposits on Arizona white oak , Mexican blue oak , netleaf oak , Toumey oak , and shrub live oak . [ 1 ]
The swamp white oak generally occurs singly in four different forest types: black ash–American elm–red maple, silver maple–American elm, bur oak, and pin oak–sweetgum. Occasionally the swamp white oak is abundant in small areas. It is found within a very wide range of mean annual temperatures from 16 to 4 °C (61 to 39 °F).
Both the Black Diamond apple and the Arkansas Black apple have otherworldly purple-black skin. But one type is much easier to find than the other. The post Black Diamond Apples Cost at Least $7 ...
Galls are apple-sized, up to 2" in diameter, with a bumpy, hairless, spotted texture. [3] Internally, the larva resides in a central chamber with radiating white fibers called nutritive tissue which feed the larva with nutrients supplied by the host. As the gall matures its external color changes from green to brown.