, Volume 8, Issue 1, pp 39–50 | Cite as

Solar heating of the soil for the control of pink root and other soilborne diseases in onions

  • J. Katan
  • I. Rotem
  • Y. Finkel
  • J. Daniel


The effectiveness of solar heating of the soil by means of mulching with transparent polyethylene, against soilborne pathogens of onions, was tested in two field experiments: at Yotvata (hot region) and at Gefen (cooler one). In both experiments, solar heating significantly reduced the incidence and severity of the pink root disease caused byPyrenochaeta terrestris by 73-100% during the 6-7 months of plant growth.Rhizoctonia solani, Fusarium infection, and weed populations (except forMelilotus) were also considerably reduced by this treatment. In addition, stand and plant growth were improved and yields were increased by 109-125% at Yotvata and by 59-62% at Gefen, as compared with the untreated control. Similar results were obtained when soil was moistened by sprinkler irrigation before applying the mulch or by sprinkler irrigation supplemented by drip irrigation under the mulch. Pentachloronitrobenzene did not control pink root disease.

Key Words

Soil solarization mulching polyethylene Allium cepa Pyrenochaeta terrestris Fusarium Rhizoctonia solani pentachloronitrobenzene weed control 


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  1. 1.
    Abawi, G.S. and Lorbeer, J.W. (1972) Several aspects of the ecology and pathology ofFusarium oxysporum f. sp.cepae.Phytopathology 62: 870–876.Google Scholar
  2. 2.
    Ahmed, A.A.G. and Harrington, J.F. (1974) Onion seed yield affected by pink root disease, soil fumigation, mother bulb fertilization and bulb size.HortScience 9: 394–396.Google Scholar
  3. 3.
    Bristow, P.R., Katan, J. and Lockwood, J.L. (1973) Control ofRhizoctonia solani by penta-chloronitrobenzene accumulated from soil by bean plants.Phytopathology 73: 808–813.Google Scholar
  4. 4.
    Dubitzki, F. and Katan, J. (1969) Studies on seedling collapse of onions and means for its control. Abstracts of the Second Israel Congress of Plant Pathology. p. 19.Google Scholar
  5. 5.
    Elad, Y., Katan, J. and Chet, I. (1980) Physical, biological and chemical control integrated for soilborne diseases in potatoes.Phytopathology 70 (in press).Google Scholar
  6. 6.
    Grinstein, A., Katan, J., Abdul Razik, A., Zeydan, O. and Elad, Y. (1979) Control ofSclerotium rolfsii and weeds in peanuts by solar heating of the soil.Pl. Dis. Reptr 63: 1056–1059.Google Scholar
  7. 7.
    Grinstein, A., Orion, D., Greenberger, A. and Katan, J. (1979) Solar heating of the soil for the control ofVerticillium dahliae andPratylenchus thornei in potatoes. pp. 431– Schippers, B. and Gams, W. [Eds]. Soil-Borne Pathogens. Academic Press, New York, NY.Google Scholar
  8. 8.
    Joffe, A.Z., Auscher, R. and Palti, J. (1972) Distribution and pathogenicity ofFusarium species associated with onions in Israel.Phytopath. medit. 11: 159–162.Google Scholar
  9. 9.
    Katan, J. (1974) Symptomless carriers of the tomato Fusarium wilt pathogen.Phytopathology 61: 1213–1217.CrossRefGoogle Scholar
  10. 10.
    Katan, J., Abramski, M. and Levi, D. (1975) Transport and transmission ofFusarium pathogens by tomato and onion seeds.Phytoparasitica 3: 74 (Abstr.).Google Scholar
  11. 11.
    Katan, J., Greenberger, A., Alon, H. and Grinstein, A. (1976) Solar heating by polyethylene mulching for the control of diseases caused by soilborne pathogens.Phytopathology 76: 683–688.CrossRefGoogle Scholar
  12. 12.
    Katan, J., Greenberger, A., Grinstein, A. and Alon, H. (1976) Additional studies on the control ofVerticillium dahliae by polyethylene mulching.Proc. 2nd Int. Verticillium Symp. p. 27.Google Scholar
  13. 13.
    Krikun, J., Orion, D. and Alon, Y. (1979) (Control of nematode and pink root in onions.)Hassadeh 59: 1304–1306. (in Hebrew)Google Scholar
  14. 14.
    Mahrer, I. (1979) Prediction of soil temperature of a soil mulch with transparent polyethylene.J. appl. Meteorol. 18: 1263–1267.CrossRefGoogle Scholar
  15. 15.
    Pullman, G.S. and DeVay, J.E. (1977) Control ofVerticillium dahliae by plastic tarping.Proc. Am. Phytopath. Soc. 4: 210.Google Scholar
  16. 16.
    Sando, Z., Even, S. and Hoffman, A. (1977) (Control ofOrobanche by methyl bromide and by thermal disinfestation.)Hassadeh 57: 2321–2323. (in Hebrew)Google Scholar
  17. 17.
    Shlevin, E. and Katan, J. (1975)Rhizoctonia disease of carrot seedlings and its control.Pl. Dis. Reptr 59: 29–32.Google Scholar
  18. 18.
    Sneh, B., Netzer, D. and Krikun, J. (1974) Isolation and identification ofPyrenochaeta terrestris from soil on dilution plates.Phytopathology 64: 275–276.Google Scholar
  19. 19.
    Vaughan, E.K. and Siemer, S.R. (1971) Soil fumigation for onion pink root.Down to Earth 26: 1–4.Google Scholar

Copyright information

© Springer Science + Business Media B.V. 1980

Authors and Affiliations

  • J. Katan
    • 1
  • I. Rotem
    • 2
  • Y. Finkel
    • 3
  • J. Daniel
    • 3
  1. 1.Dept. of Plant Pathology and Microbiology, Faculty of AgricultureThe Hebrew University of JerusalemRehovot
  2. 2.Yotvata Experiment Station, Regional Council, Moetza Ezorit EilotIsrael
  3. 3.Extension Service, Israel Ministry of AgricultureIsrael

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