Rabdophaga cornuta
Host: Salix spp.
Salix
Swollen twigs
Internodal twig swelling without foreshortening the stem
Twig swelling tapered, woody, sometimes barely noticeable
[No drawing is included for this gall]
This is a borer in larger willow stems. Walsh (1864) found it associated with stems affected by R salicisbrassicoides.
Range: IL
”- Raymond J. Gagne: (1989) The plant-feeding gall midges of North America©