Travel to the USSR to collect biological control agents of weeds

2009-05-022009-05-021990https://hdl.handle.net/10365/3980Insects.Biological pest control agents.Weeds.Leafy spurge.Travel to the USSR to collect biological control agents of weeds1990 Leafy Spurge Symposium Proceedings; Gillette, WY; July 10-12, 1990