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The disease: symptomatology and host range of barley yellow dwarf; Distribution and economic importance of barley yellow dwarf; Epidemiology of barley yellow dw

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the publi

Invertebrates perform such vital roles in global ecosystems—and so strongly influence human wellbeing—that biologist E.O. Wilson was prompted to describe th