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Vector Relations

Transmission of a Celery-Infecting Strain of Aster Yellows by the Leafhopper Aphrodes bicinctus. L. N. Chiykowski, Chemistry and Biology Research Institute, Research Branch, Agriculture Canada, Ottawa, Ontario, K1A 0C6; Phytopathology 67:522-524. Accepted for publication 26 October 1976. Copyright 1977 The American Phytopathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121. All rights reserved.. DOI: 10.1094/Phyto-67-522.

Aphrodes bicinctus was shown to be a new leafhopper vector of a celery-infecting strain of the aster yellows agent (CAYA). The number of A. bicinctus that transmitted CAYA after ingestion or injection (over 80%) was approximately the same as that for Macrosteles fascifrons. The average incubation period of CAYA in A. bicinctus (43.9 days) was considerably longer than in M. fascifrons (25.6 days). Transmission by most individuals of A. bicinctus became inconsistent as the leafhopper aged although some still were capable of transmitting CAYA 5-6 mo after the start of the acquisition access period.