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The interaction of seed rate and pesticide on the tiller density, herbage yield and frit fly population of newly sown grass

Published online by Cambridge University Press:  27 March 2009

S. A. Ellis ,
R. O. Clements  and
J. S. Bale
S. A. Ellis
Affiliation:
Department of Pure and Applied Zoology, University of Leeds, Leeds, LS2 9JT
R. O. Clements
Affiliation:
Animal and Grassland Research Institute, Hurley, Maidenhead, SL6 5LR
J. S. Bale
Affiliation:
Department of Pure and Applied Zoology, University of Leeds, Leeds, LS2 9JT
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Summary

The relationship between seed rate and use of pesticide (chlorpyrifos and aldicarb) on tiller density and herbage yield of a conventionally established autumn re-seed (i.e. grass sown after a previous grass crop) of Italian ryegrass (cv. RvP) was investigated in small plot trials at three sites in Yorkshire, Berkshire and Devon in August 1984. Plots were also sampled for pests and earthworms. Pesticide enhanced yield at all sites at the first harvest in October 1984, particularly at the low seed rates, but this effect did not persist until the spring harvest in 1985. Tiller density and herbage dry-matter yield increased logarithmically with increasing seed rate. Frit fly was the major pest and the proportion of infested tillers increased linearly with seed rate. Low seed rate in combination with appropriate insecticide was more cost effective than untreated higher seed rates in the establishment of autumn re-seeded Italian ryegrass.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 107 , Issue 2 , October 1986 , pp. 279 - 284
Copyright
Copyright © Cambridge University Press 1986

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References

Adesiyun, A. A. (1978). Effects of seeding density and spatial distribution of oat plants on colonisation and development of Oscinella frit (Diptera: Chloropidae). Journal of Applied Ecology 15, 797–808.CrossRefGoogle Scholar
Beezooijen, J. van (1985). Pest and disease problems in newly sown grass in the Netherlands. Proceedings of the British Grassland Society Occasional Symposium, No. 18, pp. 57–64.Google Scholar
Charles, A. H. (1961). Differential survival of cultivars of Lolium, Dactylis and Phleum. Journal of the British Grassland Society 16, 69–75.CrossRefGoogle Scholar
Clements, R. O., French, N., Guile, C. T., Golightly, W. H., Lewis, S. & Savage, M. J. (1982). The effect of pesticides on establishment of grass swards in England and Wales. Annals of Applied Biology 101, 305–313.CrossRefGoogle Scholar
Ellis, S. A., Bale, J. S., Clements, R. O. & Atkinson, H. J. (1984). The influence of permanent pasture rejuvenation techniques and pesticide on the incidence of frit fly and yield. Proceedings, Crop Protection in Northern Britain Conference, Dundee, 03 1984, pp. 299–304.Google Scholar
Haggar, R. J. (1979). The influence of herbicides, nitrogen fertilizer, seed rate and method of sowing on the establishment and long term composition of a perennial ryegrass ley. Weed Research 19, 231–239.Google Scholar
Harkess, R. D. (1970). Competition between tall fescue and perennial ryegrass in pure and mixed swards under simulated field conditions. Journal of Applied Ecology 7, 497–506.CrossRefGoogle Scholar
Henderson, I. F. & Clements, R. O. (1980). The effect of insecticide treatment on the establishment and growth of Italian ryegrass under different sowing conditions. Grass and Forage Science 35, 235–241.CrossRefGoogle Scholar
Lewis, G. C. (1985). Effect of soil-borne pathogens on ryegrass and white clover seedlings and their control. Proceedings of the British Grassland Society Occasional Symposium, No. 18, pp. 82–89.Google Scholar
Mowat, D. J. & Jess, S. (1984). The effect of frit fly Oscinella frit(L.) on the establishment of August sown ryegrass swards. Proceedings, Crop Protection in Northern Britain Conference, Dundee, 03 1984, pp. 305–309.Google Scholar
Mowat, D. J. & Jess, S. (1985). The effect of frit fly (Oscinella frit) control measures in the establishments of seedling ryegrass (Lolium spp.). Annals of Applied Biology 107, 377–385.CrossRefGoogle Scholar
Raw, F. (1959). Estimating earthworm populations by using formalin. Nature, London 184, 1661–1662.CrossRefGoogle Scholar
Salt, G. & Hollick, F. S. J. (1944). Studies of wireworm populations. I. A census of wireworms in pasture. Annals of Applied Biology 31, 52–64.CrossRefGoogle Scholar
Sheldrick, R. D., Lavender, R. H., Tewson, V. J. & Cobby, J. M. (1985). The effect on annual dry matter yield of using a hand-controlled mower or a plot harvester for cutting herbage in small-plot trials. Grass and Forage Science 40, 103–108.CrossRefGoogle Scholar