Beet leafhopper transmits virescence of periwinkle
AuthorsGeorge N. Oldfield
George H. Kaloostian
Harold D. Pierce
Andrew L. Granett
Edmond C. Calavan
Authors AffiliationsGeorge N. Oldfield is Research Entomologist, USDA, ARS, Boyden Entomology Laboratory, Riverside; George H. Kaloostian is Research Leader, USDA, ARS, Boyden Entomology Laboratory, Riverside; Harold D. Pierce is Agricultural Research Technician, USDA, ARS, Boyden Entomology Laboratory, Riverside; Andrew L. Granett is Post-graduate Research Plant Pathologist, Statewide Air Pollution Research Center; Edmond C. Calavan is Professor and Plant Pathologist, Department of Plant Pathology, University of California, Riverside.
Hilgardia 31(6):14-15. DOI:10.3733/ca.v031n06p14. June 1977.
Photo above shows healthy periwinkle on left and virescence-affected periwinkle on right; plant on right was exposed to beet leafhopper (Circulifer tenellus) that had previously fed on another virescence-affected periwinkle. Photo below shows periwinkle plant that developed virescence after exposure to infective beet leafhopper; not variation in severity of symphotoms.
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