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Photo#306686
Mystery eggs on leaf - Daktulosphaira vitifoliae

Mystery eggs on leaf - Daktulosphaira vitifoliae
Gurnee, Lake County, Illinois, USA
July 19, 2009

Moved
Moved from ID Request.

there are many kinds of galls
there are many kinds of galls, and i dont know much about them.
they are usually caused by wasps (perhaps allways)and they come in many shapes and sizes. some are beautiful. if you cut open one of the galls you will find its not attached to the leaf as an egg, but part of the leaf with a baby wasp inside. its actually quite interesting.
heres a picture of another from the guide.

 
Grape phylloxera galls
These galls are caused by the grape phylloxera, an aphidlike insect. In addition to wasps, other galls are caused by midges, fruit flies, moths, beetles, sawflies, and mites, among other things.

 
Thanks
Thanks. This site is great - if I could find something like this for plants I'd be set. We have some mystery plants too.
Clarence

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