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coral gall wasp, on Blue Oak.
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Oak Gall Gall induced by the Coral Wasp (Disholcaspis corallina) on a Blue Oak (Quercus douglasii) North California, CA
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Disholcaspis prehensa (Russo) Found on trail 15 associated with Q. durata. Also found black ants 'protecting' these honey dew producing galls.
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On Leather Oak in the pigmy forest.
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On Leather Oak in the pigmy forest.
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On Leather Oak in the pigmy forest.
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Disholcaspis plumbella, (Russo). Trail 15 associated with Q. durata Great colors slowly fading. Often at tip end of branch. Photo two shows the exit hole from a previous year's gall. The chamber is now filled with frass.
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One of the coolest galls I've seen on scrub oak.
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Disholcaspis plumbella, (Russo). Trail 15 associated with Q. durata Great colors slowly fading. Often at tip end of branch. Photo two shows the exit hole from a previous year's gall. The chamber is now filled with frass.
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Plant survey in Knoxville Wildlife Area with colleagues from the University of TN.
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Gall on oak.
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Gall on leather oak. Bright red like a strawberry with yellow dots. (Sierra Azul; Priest Rock Trail)