Experiments with the aster-yellows virus from several states
AuthorHenry H. P. Severin
Author AffiliationsHenry H. P. Severin was Associate Entomologist in the Experiment Station.
Hilgardia 8(10):305-325. DOI:10.3733/hilg.v08n10p305. October 1934.
Abstract does not appear. First page follows.
In 1929 the author(10) reported that Cicadula divisa Uhl. [C. sexnotata (Fall.)] transmitted yellows from naturally and experimentally infected varieties of celery to asters and from asters to celery in California. Kunkel(5) failed to infect 9 varieties of celery with the aster-yellows virus from New York by means of Cicadula divisa. In later papers the author(11), (13) reported the transmission of yellows from naturally and experimentally infected varieties of carrot, parsley, and parsnip in California, but Kunkel(5) questions whether this disease is identical with aster yellows in New York, since the California aster-yellows virus is readily transmitted to celery and to Zinnia elegans, plants that are highly resistant if not immune to New York aster yellows.
Dorst,(1) who has made a study of the genus Cicadula, found that Cicadula sexnotata (Fall.) is a European species and that the American species is Cicadula divisa Uhl. Specimens of Cicadula were sent to Dorst by Kunkel from New York and by the writer from California, and all were determined as Cicadula divisa.
A review of the literature indicates that the celery yellows found in California probably occurs in other states. According to Linford,(7) aster and celery yellows first made its appearance in Utah during 1927.
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 Fukushi T. Aster yellows in Japan [Japanese]. Agr. and Hort. 1930. 5:577-584. Abstracted in: Japanese Jour. Bot. 2: 31
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 Kunkel L. O. Celery yellows of California not identical with aster yellows of New York. Contrib. Boyce Thompson Inst. 1932. 4:405-414.
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 Ogilvie L. Aster yellows in Bermuda. A disease of many cultivated plants. Bermuda Dept. Agr. Bul. 1927. 6(5):7-8.
 Severin H. H. P. Yellows disease of celery, lettuce, and other plants, transmitted by Cicadula sexnotata (Fall). Hilgardia. 1929. 3(18):543-582. DOI: 10.3733/hilg.v03n18p543 [CrossRef]
 Severin H. H. P. Carrot and parsley yellows transmitted by the six-spotted leafhopper, Cicadula sexnotata (Fall. Phytopathology. 1930. 20:920-921.
 Severin H. H. P. Modes of curly-top transmission by the beet leafhopper, Eutettix tenellus (Baker). Hilgardia. 1931. 6(8):253-276. DOI: 10.3733/hilg.v06n08p253 [CrossRef]
 Severin H. H. P. Transmission of carrot, parsley, and parsnip yellows by Cicadula divisa Uhl. Hilgardia. 1932. 7(3):163-179. DOI: 10.3733/hilg.v07n03p163 [CrossRef]
 Severin H. H. P., Haasis F. A. Transmission of California aster yellows to potato by Cicadula divisa. Hilgardia. 1933. 8(10):327-335. DOI: 10.3733/hilg.v08n10p327 [CrossRef]
 Severin H. H. P., Henderson C. F. Some host plants of curly top. Hilgardia. 1928. 3:339-392. DOI: 10.3733/hilg.v03n13p339 [CrossRef]
 Severin H. H. P., Freitag J. H. Some properties of the curly-top virus. Hilgardia. 1933. 8:1-48. DOI: 10.3733/hilg.v08n01p001 [CrossRef]
 Severin H. H. P., Swezy O. Filtration experiments on curly-top of sugar beets. Phytopathology. 1928. 18:681-690.
 Smith K. M. Recent advances in the study of plant viruses. 1933. London: J. &; A. Churchill. 423p.
 Vaughan R. E., Foster A. C. Carrot. The Plant Disease Reporter Supplement. 1930. 75:60 (Issued by the U. S. Dept. Agr. Bur. Plant Indus.)
 Whetzel H. H. Diseases of muck crops in New York. The Plant Disease Reporter. 1929. 13:174 (Issued by the U. S. Dept. Agr. Bur. Plant Indus.)
 Zundel G. L. Yellows (virus) on various plants. The Plant Disease Reporter. 1929. 13:174 (Issued by the U. S. Dept. Agr. Bur. Plant Indus.)
Also in this issue:Trucks in produce marketing: About 15% of California's interstate shipments of fresh fruits and vegetables are moved by truck
Pacific coast canned fruits: F.o.b. prices reflect average industry experience for the period June 1, 1953 through May 30, 1954
World-wide grape surplus: Analysis of price-depressing effects of California's exportable surpluses on the grape product markets
Rancid flavor in fresh milk: Activating effect of some pipeline milkers and farm tanks apparently major cause of rancidity
Poison gas tests on gophers: Gases and gas bombs much less effective and more costly than poison bait, contrary to common claims
Irrigation tests with oranges: Effects of various irrigation practices on growth and production of citrus trees subject of studies
Citrus grove rejuvenation study: Ten areas selected for stationwide research on problems of decline in production and fruit size
Reseeding controlled burns: Records of 45 controlled brush burns in woodland-grass areas indicate self-reseeding predominates
Forage composition and yield: Studies of forage regrowth and grazing capacity on controlled burned areas in northern California
Off-flavor in canned olives: Tests show application of certain insecticides to olive trees will produce musty flavor in the fruit
Transmission of California aster yellows to potato by Cicadula divisa
Transmission of California aster and celery-yellows virus by three species of leafhoppers