|Goldenrod Gall click to enlarge|
|Goldenrod gall fly|
|Eurytoma wasp Bucknell.edu|
This obligate interdependence occurs throughout the natural world. Loss of one species leads to extinction of many others that can't survive without it. Many people would like to see goldenrod disappear because they falsely blame if for their allergies.* If this were to occur, we would lose at least five insect species.
* Goldenrod is innocent of all charges in creating allergies- its pollen is only carried by insects. It blooms at the same time as its neighbor ragweed, whose tiny airborne pollen particles cause our allergies.
The whole story of these insect's life cycles with photographs can be found at this site.