Pythiaceous fungi and plant-parasitic nematodes in California pear orchards: III.
      Effect of reduction of nematode populations by soil fumigation on subsequent growth
      of pear seedlings

Lownsbery, B; Mitchell, J; Paracer, S

Pythiaceous fungi and plant-parasitic nematodes in California pear orchards: III. Effect of reduction of nematode populations by soil fumigation on subsequent growth of pear seedlings

Authors

B. F. Lownsbery
J. T. Mitchell
S. M. Paracer

Authors Affiliations

B. F. Lownsbery was Associate Nematologist, in the Experiment Station, Davis; J. T. Mitchell was Laboratory Technician, Department of Nematology, Davis; S. M. Paracer was a graduate student in the Department of Nematology, Davis.

Publication Information

Hilgardia 35(21):611-614. DOI:10.3733/hilg.v35n21p611. October 1964.

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Abstract

Reduction of populations of pin nematodes, spiral nematodes, and stunt nematodes in orchard soil by fumigation with ethylene dibromide did not improve the growth of Bartlett or Oriental pear seedlings. The results suggest that these nematodes are not an important factor limiting growth of pears in California.

Literature Cited

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Day L. H., Serr E. F. Comparative resistance of rootstocks of fruit and nut trees to attack by a root lesion or meadow nematode. Proc. Amer. Soc. Hort. Sci. 1951. 57:150-54.

Day L. H., Tufts Warren P. Nematode-resistant rootstocks for deciduous fruit trees. Calif. Agr. Expt. Sta. Cir. 1944. 359:16 https://archive.org/details/nematoderesistan359dayl

French A. M., Lownsbery B. F., Ayoub S. M., Weiner A. C., El-Gholl N. Pythiaceous fungi and plant-parasitic nematodes in California pear orchards. II: Incidence and distribution of parasitic nematodes in orchard soils. Hilgardia. 1964. 35(21):603-10.

Fulton Joseph P. Transmission of tobacco ringspot virus by Xiphinema americanum. Phytopathology. 1962. 52:375

Lownsbery B. F., Serr E. F. Fruit and nut rootstocks as hosts for a root-lesion nematode, Pratylenchus vulnus. Proc. Amer. Soc. Hort. Sci. 1963. 82:250-54.

Lownsbery B. F., Serr E. F., Hansen C. J. Deciduous fruit and nut trees. Root-knot nematode on peach and root-lesion nematode on walnut cause serious problems for California orchardists. Calif. Agr. 1959. 13(9):19-20.

Paterson D. D. Statistical technique in agricultural research. 1939. New York, N.Y.: McGraw-Hill Book Co., Inc. 263p.

Tyler Jocelyn. The root-knot nematode. Calif. Agr. Expt. Sta. Cir. 1944. 330(Rev.):30 https://archive.org/details/rootknotnematode330tyle

Also in this issue:

Pythiaceous fungi and plant-parasitic nematodes in California pear orchards: I. Occurrence and pathogenicity of pythiaceous fungi in orchard soils

Pythiaceous fungi and plant-parasitic nematodes in California pear orchards: II. Incidence and distribution of parasitic nematodes in orchard soils