Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-25T06:30:33.487Z Has data issue: false hasContentIssue false
  • English
  • Français

The Low Volume Technique of Spraying Fungicides for the Control of Potato Blight (Phytophthora Infestans)

Published online by Cambridge University Press:  04 July 2016

E. Evans ,
J. W. H. Taylor ,
R. Runham  and
B. J. Couzens
E. Evans
Affiliation:
Chesterford Park Research Station, Saffron Walden, Essex
J. W. H. Taylor
Affiliation:
Chesterford Park Research Station, Saffron Walden, Essex
R. Runham
Affiliation:
Chesterford Park Research Station, Saffron Walden, Essex
B. J. Couzens
Affiliation:
Chesterford Park Research Station, Saffron Walden, Essex
Get access Rights & Permissions [Opens in a new window]

Extract

The history of the application of fungicides is one which shows a tendency to use ever decreasing quantities of spray liquid to the acre; the reason for this is obviously one of economics. The classification of various spray techniques is discussed with particular reference to the term ultra low volume. This may be defined briefly as the spraying of such extremely small volumes of liquid to the acre that it becomes impossible to use a simple aqueous medium as carrier. The reasons for this are given and the advantages of using special formulating agents noted.

The success of the low volume technique of spraying potatoes for the control of blight is illustrated with a series of blight progress curves, showing that 5 lb of copper oxy-chloride applied at 50 gpa gives identical results to a similar rate of copper at 2 gpa. Copper estimations made on leaf samples from the top, middle and bottom leaves of a potato crop sprayed at 100 gpa and 5 gpa respectively show that the mass distribution of copper is much more uniform in the high volume plots than in the low volume plots. However, the largest quantities of copper are found in the top layers of the plots sprayed at low volume.

Type
Research Article
Information
The Aeronautical Journal , Volume 69 , Issue 660 , December 1965 , pp. 855 - 861
Copyright
Copyright © Royal Aeronautical Society 1965

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

1.Amsden, R. C. Personal Communication, 1964.Google Scholar
2.Brenchley, G. H.Some Factors Influencing the Control of Potato Blight. Proc British Insecticide and Fungicide Conference, 1961, pp 139–144, 1962.Google Scholar
3.Brenchley, G. H.Aerial Photography for the Study of Potato Blight Epidemics. World Review of Pest Control, Vol. 3, No. 2, pp 68–84, 1964.Google Scholar
4.Courshee, R. J., Amsden, R. C. and Morris, H. J.Report to the Government Entomologist, Sudan, 1957 (unpublished).Google Scholar
5.Courshee, R. J. Personal Communication, 1963.Google Scholar
6.Cox, A. E. and Large, E. C.Potato Blight Epidemics Throughout the World. Agricultural Handbook, No. 174, US Dep Agric, 1960.Google Scholar
7.Evans, E., Bevington, H. L. S. and Whitaker, E. P. Significance of the Antisporulation Effect of Copper Fungicides in the Control of Sigatoka Disease of Bananas caused by Mycosphaerella musicola Leach. Nature, Lond, Vol. 191, No. 4787, pp 476–481, 1961.Google Scholar
8.Evans, E., Collingwood, E. F., Taylor, J. W. H. and Whitaker, E. P.Field Trials with Bordeaux Mixture and Various Formulations of Copper Oxychloride for Control of Late Blight of Potatoes and Black Pod of Cacao. Trans Brit mycol Soc, Vol. 45, No. 3, pp 321–334, 1962.CrossRefGoogle Scholar
9.Evans, E., Couzens, B. J. and Griffiths, W.Timing Experiments on the Control of Potato Blight with Copper Fungicides in the United Kingdom. World Review of Pest Control, Vol. 4, No. 2, 1965.Google Scholar
10.Guyot, H. and Cuillé, J. Les traitements fongicides des Bananeraies. II. Efficacités des différents modes de traite ments—Rôle de l'huile. Fruits d'outre mer, Vol. 10, No. 3, pp 101–107, 1955.Google Scholar
11.Hartley, G. S. and Howes, R.Special Formulations for Low Volume Spraying. Proc British Insecticide and Fungi cide Conference, 1961, Vol. 2, pp 533–542, 1962.Google Scholar
12.Huysmans, C. P.Een eevoudige micro-kooeranalyse, gebruikt bij fungicidenoroven in thee. Arch Theecult, Vol. 18, pp 207–222, 1953.Google Scholar
13.Lapwood, D. H. Potato Haulm Resistance to Phytophthora infestans. III. Lesion distribution and leaf destruction. Ann appl Biol, Vol. 49. pp 704–716, 1961.CrossRefGoogle Scholar
14.Large, E. C.The Internretation of Progress Curves for Potato Blight and other Plant Diseases. Plant Pathology, Vol. l, pp 109–117, 1952.Google Scholar
15.Large, E. C. and Taylor, G. C.The Distribution of Spray Deposits in Low-volume Potato Spraying. Plant Pathology, Vol. 2, No. 3, pp 93–98, 1953.CrossRefGoogle Scholar
16.Moore, M. H.Concentrate spraying of apple trees. I. Fungicidal efficiency of Lime-sulphur. Ann appl Biol, Vol. 45, No. l, pp 11–18, 1957.CrossRefGoogle Scholar
17.Plank, J. E. Van der.Analysis of epidemics.Plant Patho logy, Academic Press, Vol. 3, p 250, 1960.Google Scholar
18.Rayner, R. W.The control of Coffee Rust in Kenya by Fungicides. Ann appl Biol, Vol. 50, pp 245–261, 1962.Google Scholar