Hostname: page-component-76fb5796d-2lccl Total loading time: 0 Render date: 2024-04-25T12:28:12.728Z Has data issue: false hasContentIssue false
  • English
  • Français

Dispersal of Pyrenopeziza brassicae spores from an oil-seed rape crop

Published online by Cambridge University Press:  27 March 2009

H. A. McCartney ,
M. E. Lacey  and
C. J. Rawlinson
H. A. McCartney
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
M. E. Lacey
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
C. J. Rawlinson
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ
Get access Rights & Permissions [Opens in a new window]

Summary

Spores of Pyrenopeziza brassicae, which are mostly dispersed by rain splash, were trapped 4 m above and 20 m downwind of an oil-seed rape crop. This suggests that not all trapped spores were transported in ballistic splash droplets (100–2000 μm); indeed some were airborne during periods of dry weather following closely after rain. Vertical and horizontal spore concentration gradients corresponded to the gradients expected for spores with fall speeds of between 2 and 5 cm/sec. Atmospheric dispersal calculations suggest that such spores have the potential for transport over considerable distances to other susceptible crops.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 107 , Issue 2 , October 1986 , pp. 299 - 305
Copyright
Copyright © Cambridge University Press 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aylor, D. E. (1982). Modelling spore dispersal in a barley crop. Agricultural Meteorology 26, 215–219.CrossRefGoogle Scholar
Aylor, D. E. & Taylor, G. S. (1982). Aerial dispersal and drying of Peronospora tabacina conidia in tobacco shade tents. Proceedings of the National Academy of Science, U.S.A. 79, 697–700.CrossRefGoogle ScholarPubMed
Fatemi, F. & Fitt, B. D. L. (1983). Dispersal of Pseudocercosporella herpotrichoides and Pyrenopeziza brassicae spores in splash droplets. Plant Pathology 32, 401–404.Google Scholar
Fitt, B. D. L. & McCartney, H. A. (1986). Spore dispersal in splash droplets. In Water Fungi and Plants (ed. Ayres, P.), pp. 87–104. Cambridge: Cambridge University Press.Google Scholar
Gladders, P. (1984). Present and potential disease interactions between oil-seed rape and vegetable brassicas. Proceedings of the 1984 British Crop Protection Conference–Pests and Diseases 2, 791–798.Google Scholar
Humpherson-Jones, F. M. (1984). Seed borne disease interactions between oilseed rape and other brassicas. Proceedings of the 1984 British Crop Protection Conference – Pests and Diseases 2, 799–806.Google Scholar
Legg, B. J. & Powell, F. A. (1979). Spore dispersal in a barley crop: a mathematical model. Agricultural Meteorology 20, 47–67.CrossRefGoogle Scholar
Long, E. (1985). Worst ever light leaf spot outbreak spells trouble for sprout crops. Grower 10 10, 7.Google Scholar
McCartney, H. A., Bainbridge, A. & Stedman, O. J. (1985). Spore deposition velocities measured over a barley crop. Phytopathologische Zeitschrift 114, 224–233.Google Scholar
McCartney, H. A. & Fitt, B. D. L. (1985). Construction of dispersal models. In Advances in Plant Pathology, Vol. 3. Mathematical Modelling of Crop Diseases (ed. Gilligan, C. A.), pp. 107–143. London: Academic Press.Google Scholar
Monteith, J. L. (1973). Principles of Environmental Physics.London: Arnold.Google Scholar
Perkins, W. A. (1957). The rotorod sampler. Second semi-annual report, Aerosol Laboratory, Department of Chemistry and Chemical Engineering, Standford University, C. M. L. 186.Google Scholar
Rawlinson, C. J. (1979). Light leaf spot on oil-seed rape: an appraisal with comments on strategies for control. Proceedings of the 1979 British Crop Protection Conference – Pests and Diseases, pp. 137–143.Google Scholar
Rawlinson, C. J. & Muthyalu, G. (1985). Rothamsted Annual Report for 1984, p. 124. Harpenden: Rothamsted Experimental Station.Google Scholar
Rawlinson, C. J., Muthyalu, G. & Cayley, G. R. (1984). Fungicide effects on light leaf spot, canker, crop growth and yield of winter oil-seed rape. Journal of Agricultural Science, Cambridge 103, 613–628.CrossRefGoogle Scholar
Rawlinson, C. J., Sutton, B. C. & Muthyalu, G. (1978). Taxonomy and biology of Pyrenopeziza brassicae sp.nov. (Cylindrosporium concentricum), a pathogen of winter oilseed rape (Brassica napus ssp. oleifera). Transactions of the British Mycological Society 71, 425–439.Google Scholar
Sreeramulu, T. & Ramalingam, A. (1961). Experiments on the dispersion of Lycopodium and Podaxis spores in the air. Annals of Applied Biology 49, 659–670.CrossRefGoogle Scholar
Stepanov, K. M. (1935). Dissemination of infective diseases of plants by air currents (in Russian). Bulletin Plant Protection Leningrad Series 2, Phytopathology 8. 1–68.Google Scholar