University of California

The resistance of varieties and new dwarf races of tomato to curly top (western yellow blight or yellows)


J. W. Lesley

Author Affiliations

J. W. Lesley was Assistant Plant Breeder in the Experiment Station.

Publication Information

Hilgardia 6(2):27-44. DOI:10.3733/hilg.v06n02p027. August 1931.

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Certain tomato varieties are known to be resistant to curly top,3 formerly known as western yellow blight. Curly top is transmitted, in the United States, to beets, tomatoes, and a great variety of other host plants by the leafhopper Euttetix tenellus (Baker). As the absence of disease in some previous trials of resistance in tomato varieties was believed to be due to a lack of infective leafhoppers, viruliferous leafhoppers were confined on the plants in some of the experiments reported in this paper. However, trials under natural infestation were thought to be still necessary to test the value of natural resistance as a practical means of control. Accordingly, it was decided to make use of both natural and artificial infestation. An account of trials with natural infestation during three years, 1922-1925, has previously appeared in this journal.(5)

Literature Cited

[1] Carsner E. Resistance in sugar beets to curly-top. U.S. Dept. Agr. Dept. Cir. 1926. 388:1-7.

[2] Carsner E., Lackey C. F. Further studies on attenuation of the virus of sugar beet curly top. Phytopath. 1928. 18:951

[3] Carsner E., Lackey C. F. Mass action in relation to infection with special reference to curly top of sugar beets. Phytopath. 1929. 19:1137

[4] Carsner E., Stahl C. F. Studies on curly top disease of the sugar beet. Jour. Agr. Res. 1924. 28:297-319.

[5] Lesley J. W. A study of resistance to western yellow blight of tomato varieties. Hilgardia. 1926. 2:47-66.

[6] Severin H. H. Tomato yellows or tomato curly top. Phytopath. 1928. 18:709-710.

[7] Shapovalov M. Inoculation experiments with western yellow tomato blight in relation to environmental conditions. Phytopath. 1927. 17:746

[8] Shapovalov M. Yellows, a serious disease of tomatoes. U.S. Dept. Agr. Misc. Publ. 1928. 13:1-4.

[9] Shapovalov M. A celluloid cell for inoculation of plants with insect vectors. Phytopath. 1930. 20:681-683.

[10] Shapovalov M., Beecher F. S. Experiments on the control of tomato yellows. U.S. Dept. Agr. Tech. Bul. 1930. 189:1-23.

[11] Shapovalov M., Jones H. A. Changes in the composition of the tomato plant accompanying different stages of yellows. Plant Physiol. 1930. 5:157-165. DOI: 10.1104/pp.5.1.157 [CrossRef]

Lesley J. 1931. The resistance of varieties and new dwarf races of tomato to curly top (western yellow blight or yellows). Hilgardia 6(2):27-44. DOI:10.3733/hilg.v06n02p027
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