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The effect of benomyl systemic fungicide and the growth regulator CCC on eyespot disease of barley

Published online by Cambridge University Press:  27 March 2009

J. M. L. Davies  and
D. Gareth Jones
J. M. L. Davies
Affiliation:
Department of Agricultural Botany, University College of Wales, Aberystwyth
D. Gareth Jones
Affiliation:
Department of Agricultural Botany, University College of Wales, Aberystwyth
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Summary

The systemic fungicide benomyl was used as a seed dressing and as a spray at two concentrations, 250 and 500 ppm, on the winter barley variety Pella. An additional treatment was a spray application of CCC at 500 ppm. All spray treatments were applied at growth stage 3–4. Without fungicide treatment, total yield in the inoculated plots was approximately 40% of that in the uninoculated plots. The 500 ppm fungicide-spray treatment significantly decreased incidence and severity scores of eyespot, the seed dressing being significant only for the latter. The seed dressing and 500 ppm spray treatments significantly increased mean yield/head, fertile tiller number and 1000 grain weight. All the fungicide treatments significantly increased total yield in the inoculated plots. There were no significant effects of CCC upon disease or upon yield, neither was there any interaction between benomyl and CCC.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 77 , Issue 3 , December 1971 , pp. 525 - 529
Copyright
Copyright © Cambridge University Press 1971

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References

REFERENCES

Anon. (1969). Du Pont ‘Benlate’ experimental testing. Du Pont Information Bulletin, 02.Google Scholar
Catling, W. S. (1969). Benomyl – a broad spectrum fungicide. Proc. 5th Br. Insectic. Fungic. Conf., vol. II, pp. 298–309.Google Scholar
Davies, J. M. L. & Jones, D. Gabeth (1970). The response of seven barley varieties to inoculation in the field with different isolates of Cercosporella herpotrichoides Fron. J. agric. Sd., Camb. 74, 391–6.CrossRefGoogle Scholar
Delp, C. J. & Klopping, H. L. (1968). Performance attributes of a new fungicide and mite ovicidal candidate. Pl. Dis. Reptr 52, 95–9.Google Scholar
Diercks, R. (1965). Über die Bekämpfung der Halmbruchkrankheit des Weizens (Cercosporella herpotrichoides) mit Chlorcholinchlorid. Z. PflKrankh. PflPath. PflSchutz 72, 257–71.Google Scholar
Doodson, J. K. & Saunders, P. J. W. (1969). Observations on the effects of some systemic chemicals applied to cereals in trials at the N.I.A.B. Proc. 5th Br. Insectic. Fungic. Conf., vol. I, pp. 1–7.Google Scholar
Humphries, E. C. (1968). CCC and cereals. Fld Crop Abstr. 21, 91–9.Google Scholar
Jones, D. Gabeth & Davies, J. M. L. (1969). A comparison of field inoculation methods with Cercosporella herpotrichoides (Fron) on spring barley. J. agric. Sci., Camb. 73, 437–44.CrossRefGoogle Scholar
Jung, J. & Strum, H. (1966). CCC: its combination with certain herbicides and special considerations of dosage rates as related to disease incidence in cereals. Proc. 8th Br. Weed Control Conf., pp. 245–56.Google Scholar
Slope, D. B., Humphries, E. C. & Etheridge, J. (1969). Effect of CCC on eyespot (Cercosporella herpotrichoides) of winter wheat. Pl. Path. 18, 182–5.CrossRefGoogle Scholar
Witchalls, J. T. & Close, R. (1971). Control of eyespot lodging in wheat by benomyl. Pl. Dis. Reptr 55, 45–7.Google Scholar