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Relation of Age, Sex, and Mating of Macrosteles fascifrons to Transmission of Aster Yellows. K. G. Swenson, Professor of Entomology, Oregon State University, Corvallis 97331; Phytopathology 61:657-659. Accepted for publication 7 January 1971. DOI: 10.1094/Phyto-61-657.

The effects of sex, mating, and age when pathogen was acquired on transmission of aster yellows by Macrosteles fascifrons are reported. Fewer 1st-instar nymphs than adults became inoculative during 2 days on diseased plants. The nymphs that became inoculative transmitted as frequently, but no more so, than did adults. Males transmitted less frequently than did females. No effects on transmission due to mating were observed.