Media for Genus Botryosphaeria

3 displayed media

One photo per taxon Back to taxon

<em>Botryosphaeria dothidea</em> in Howard Co., Maryland (10/16/2013). Richard Orr says about this photo, "These Goldenrod (Solidago sp.) leaf galls are caused by a fly (Cecidomyiidae: Asteromyia carbonifera). These flies also carry a symbiotic fungus (Botryosphaeria dothidea = Sclerotium asteris) with them. The Gall Midges disperse the fungus and the fungus aids in keeping away parasitoids that would attack the developing Gall Midge larvae. In the photo the lower two inserts are the same old gall. The one on the right has had the surface peeled back to expose the black fungus underneath. This wearing off of the upper surface would occur naturally – but I was not that patient so I used my knife to speed the process. When one observes “tar-spots” on the leaves of Golden Rod it is all that is left of the gall – only the black fungus remains."

Asteromyia Gall Midge Fungus (Botryosphaeria dothidea (Mougeot ex Fries) Cesati & De Notaris)

Media by Richard Orr

Photo ID 20219 View all for taxon View Record

Asteromyia Gall Midge Fungus in Washington Co., Maryland (8/3/2022). (c) Sue Muller, some rights reserved (CC BY-NC)

Asteromyia Gall Midge Fungus (Botryosphaeria dothidea (Mougeot ex Fries) Cesati & De Notaris)

Media by Sue Muller

Photo ID 1459724 View all for taxon View Record

A <em>Botryosphaeria dothidea</em> in Garrett Co., Maryland (8/17/2019). Determined by Bob Solem.

Asteromyia Gall Midge Fungus (Botryosphaeria dothidea (Mougeot ex Fries) Cesati & De Notaris)

Media by Sue Muller

Photo ID 148830 View all for taxon View Record

Showing 3 of 3.