Ragwort Galls

I was admiring the bright yellow ragwort shimmering in the sunshine.Photo of ragwort

Upon closer inspection the old flower heads seemed to have what looked like galls on them. It seems as though the gall midge, Contarinia jacobaeae might be the culprit according to this blog post here. Perhaps someone can tell me if they are something else?Photo of galls on ragwort

Update: Thanks to @Ragwort_horses it seems most likely that this is Botanophila seneciella. It is commonly known as the ragwort seed fly, and along with the cinnabar moth and the ragwort flea beetle it is used as a biological pest control for ragwort.


5 thoughts on “Ragwort Galls

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s