Friday, April 30, 2010
The other day while doing a trail hike with a group of children we discovered an unusual red, velvet-like group of masses on the leaves of a young oak tree. Not sure what insect created them, but most likely a midge. After breaking open one of the galls I discovered tiny white worms inside.I kept them, and hopefully will get to see what they turn into.
For all appearances it looks as if these leaves burst into flames. I assure you though this is not the case, these odd protrusions are the results of a tiny mite. These are most commonly found on Black Cherry trees. They are called "fingergalls" which is an apt name for these digit-like formations. They do not appear to cause any damage to the Cherry trees at all. It is a good thing too, because almost every cherry tree on our farm is covered with them.
These tiny nodules growing on this leaf are probably the galls from another type of midge. I was unable to find much on this type of gall.
If unusual tracks, or signs left by insects fascinate you, then you will love a new book that came out this year called "Tracks and Signs of Insects & Other Invertebrates" by: Charley Eiseman and Noah Charney. It is available through Amazon.com for around $30.00. Click on this link to order now Insect Tracks & Signs