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

Rhabdophaga cornuta

Gall similar to above [Rabdophaga podagrae], cells in wood

Rhabdophaga cornuta

Salix [Salix exigua added as a placeholder]
Twig galls

Slightly enlarged or slender twigs, midges. A somewhat long series has been reared. They can be identified only by rearing and studying the insects.