Submitted to: American Phytopathological Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: March 17, 2002
Publication Date: June 1, 2002
Citation: GILDOW, F.E., DAMSTEEGT, V.D., STONE, A.L., LUSTER, D.G. APHID VECTOR COMPETENCE AND TRANSMISSION OF PENNSYLVANIA ISOLATES OF PLUM POX VIRUS FROM INFECTED PEACH FRUIT. AMERICAN PHYTOPATHOLOGICAL SOCIETY ABSTRACTS. 2002.
Eight species of aphids collected from a peach orchard in Adams Co., PA, were tested for their ability to transmit two Pennsylvania isolates of plum pox potyvirus recovered from infected trees in Adams (PPV-R1) or Franklin Co. (PPV-FF). Clones of each aphid species were reared on herbaceous host plants. Several acquisition and inoculation protocols were tested to enhance non-persistent transmission of PPV. Four species, Myzus persicae, Brachycaudus persicae, Aphis spiraecola, and A. fabae consistently transmitted PPV. Rhopalosiphum padi transmitted occasionally, and Macrosiphum euphorbiae, A. pisum and A. glycines did not transmit PPV in replicated tests. M. persicae and B. persicae consistently transmitted PPV to peach seedlings from mature peach fruits collected from ELISA positive trees in orchards. Results prove that PA isolates of PPV can be transmitted by aphid species occurring in Prunus orchards and verifies the ability of these aphids to transmit PPV from infected fruits.