International Symposia on Biological Control of Weeds

Cheilosia psilophthalma

Article	Lead Author	Year
Cheilosia praecox and C. psilophthalma, Two Phytophagous Hoverflies Selected as Potential Biological Control Agents of Hawkweeds (Hieracium spp.) in New Zealand (ABSTRACT ONLY)	Grosskopf	1999
Host-range investigations of potential biological control agents of alien invasive hawkweeds (Hieracium spp.) in the USA and Canada: an overview	Grosskopf	2007