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Nature: The various species of Goldenrod, Solidago, produce at least three kinds of galls in response to insects. ... This gall forms when, in late spring, a small fly with spotted wings and the appropriate name of Goldenrod Gall Fly, Eurosta solidaginis, lays her even tinier egg on a fast-growing Goldenrod stem.
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www.hiltonpond.org/ThisWeek051001.html
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The round ones are home to the larval stage of the goldenrod stem gall fly (Eurosta solidaginis). In an undisturbed field one can usually find the previous year's galls along with this year's, so you can compare an inhabited one to an empty one.
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www.gpnc.org/goldenro.htm
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Demonstrating freeze tolerance with larvae of the Goldenrod Gall Fly ... Goldenrod Gall Fly Life-Cycle ... The goldenrod gall fly (Eurosta solidaginis) is a common and widely distributed insect found coast to coast in the central part of North America. The adult flies emerge from their galls in late spring. In Manitoba they...
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www.naturenorth.com/winter/gallfly/gallfly1.html
www.naturenorth.com/winter/gallfly/gallfly1.html
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The goldenrod gall fly (Eurosta solidaginis). A Class Room Demonstration.
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www.naturenorth.com/winter/gallfly/Fgallfly.html
www.naturenorth.com/winter/gallfly/Fgallfly.html
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As you walk around Fermilab in the fall keep your eyes open for a round lump on the stems of many of the goldenrod plants that grow throughout the site. This gall is produced by the activity of the Goldenrod Gall Fly, Eurosta solidaginis.
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ed.fnal.gov/entry_exhibits/insect/goldenrod.html
ed.fnal.gov/entry_exhibits/insect/goldenrod.html
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The Goldenrod Ball Gall ... In late spring the female goldenrod gall fly, only one-third of an inch long, lays her eggs. She uses her ovipositor, the pointed tube on the end of her abdomen, to deposit eggs on each tender goldenrod shoot. Special cells on her feet help her know this is the right kind of plant.
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www.dnr.state.mn.us/young_naturalists/galls/index.html
www.dnr.state.mn.us/young_naturalists/galls/index.html
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The Solidago Eurosta Gall Homepage ... A Resource for Teaching and Research ... Key to Gall Contents...
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www.facstaff.bucknell.edu/abrahmsn/solidago/main.html
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PURPOSE: To investigate the ecology and behavior of goldenrod gall fly larvae and their predators. ... INTRODUCTION: The round swellings on the stems of some goldenrod plants are caused by the gall fly (Eurosta solidaginis). The gall fly is a parasite on the goldenrod plant, because it eats plant tissue but does not kill...
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www.oswego.edu/wscp/sg-s.htm
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5. Elliptical galls on goldenrod, caused by the gall moth, may contain wasp parasitoid or a beetle. The larva of species of beetle can also be found in the ball-shaped goldenrod galls usually living in a separate ... PURPOSE: To investigate the ecology and behavior of goldenrod gall fly larvae and their predators.
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www.oswego.edu/wscp/sg.htm
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