https://vtechworks.lib.vt.edu/items/680725a9-2eca-4854-9d3f-0fae52cde2c0/full
Integrated control of Carduus thistles and ecological studies on Rhinocyllus conicus Froelich and...
A biological and integrated control program for Carduus thistles was developed using the biological control agents Rhinocyllus conicus Froelich and...