International Symposia on Biological Control of Weeds

Carduus pycnocephalus - Italian thistle

Article	Lead Author	Year
Ethological and genetic differences among three biotypes of Rynocyllus conicus (Coleoptera: Curculionidae) introduced into North America for the biological control of Asteraceous thistles	Goeden	1984
Biological control of Carduus pycnocephalus with Alternaria spp.	Anderson	1984