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leaf galls, gouty oak gall, insecticide sprays: Since the galls do little damage to the tree there is really very little need to do anything. The population of the insects will vary by year and some years you will be hard pressed to find a gall and other years they will be numerious. ... Horned oak galls can be found on pin,
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en.allexperts.com/q/Trees-739/Possible-Galls-Oak-Tree-1...
en.allexperts.com/q/Trees-739/Possible-Galls-Oak-Tree-1.htm
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Jumping Oak Gall ... Leaf galls rarely affect tree health so control is rarely justified. However, an application of carbaryl (Sevin) at bud break may reduce infestations of some galls. It is difficult to spray moderate to large trees without special equipment and the necessary protective clothing to protect the...
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www.ca.uky.edu/ENTOMOLOGY/entfacts/ef408.asp
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Many people call out office when they find swollen growth on their oak trees. Often these growths become as large as a ping pong ball and are similar in appearance. These interesting growths are called galls. Several kinds of insects and mites cause curious swellings ... The larvae develops within a cavity inside the gall,
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cecalaveras.ucdavis.edu/oakgall.htm
cecalaveras.ucdavis.edu/oakgall.htm
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There are a variety of gall-forming species of small wasps that commonly infest oak, Quercus spp ., trees in Pennsylvania. Most leaf galls on oak cause little or no harm to the health of a tree. However, twig or branch galls may cause injury or even death to a heavily infested tree.
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ento.psu.edu/extension/factsheets/galls-oak
ento.psu.edu/extension/factsheets/galls-oak
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I have compiled the most common hardwood tree insects you might find in yard and forest. You can do a lot to prevent and control hardwood insect, which some mistake as a disease, including oak leaf gall. Here is how. ... A few galls on a tree or plant seldom warrant control. They may be hand picked and ... Oak Apple Gall...
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forestry.about.com/od/forestinsects/p/sect_com_ogall.ht...
forestry.about.com/od/forestinsects/p/sect_com_ogall.htm
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From time to time people call to ask about curiosly shaped, often brightly colored swellings that occur on oak tree leaves and twigs. The growths, called "galls," are usually the result of tiny wasps known as cynipids or gallwasps. ... The pinhead-sized "jumping oak gall", formed by the gallwasp Neuroteras saltatorius,
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cestanislaus.ucdavis.edu/files/176.htm
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URCHINS ON OAKS? No worries. The growths on this blue oak are oak galls formed by the tree in response to tiny wasps. Urchin galls are very common in the Redding and Red Bluff areas. ... BEAKED TWIG GALL: This spotted gall is found on white oaks, a group that includes the blue oak and valley oak.
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www.redding.com/news/2007/sep/08/natures-oddballs-oak-t...
www.redding.com/news/2007/sep/08/natures-oddballs-oak-tree-galls-are-strangely-intr/
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green=unisex-ual gall), on canyon live oak. Gall wasp, Heteroecus melanoderma, on canyon live oak. A single oak tree can host hundreds of species of insects, spiders, lichens, mosses, fungi, and other organisms creating a veritable arboreal zoo.
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www.californiaoaks.org/ExtAssets/WaspGalls_RonRussoPost...
www.californiaoaks.org/ExtAssets/WaspGalls_RonRussoPoster.pdf
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The Mealy Oak Gall has been around as long as the live oak tree. What is a gall, in particular the mealy oak gall? Galls are abnormal swellings of plant tissue that can be caused by insects, bacteria, fungi, mites and nematodes.
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theagriculturalist.blogspot.com/2009/05/galls-on-oak-tr...
theagriculturalist.blogspot.com/2009/05/galls-on-oak-trees.html
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