Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-05-21T03:02:52.405Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of changing land use on outbreaks of tropical migratory locust, Locusta migratoria migratorioides (R. & F.)

Published online by Cambridge University Press:  19 September 2011

Roger A. Farrow
Roger A. Farrow
Affiliation:
Division of Entomology, CSIRO, GPO Box 1700, Canberra, A.C.T., Australia 2601
Get access

Abstract

In the major breeding areas of tropical migratory locust, Locusta migratoria migratorioides (R. & F.) in Mali, Chad, Sudan and Madagascar, man has played a vital role in maintaining locust numbers above the levels found in undisturbed environments, through his agricultural and pastoral activities. Recent rapid agricultural development, particularly broad-acre cultivation of mono-cotyledonous summer crops in areas climatically suitable for migratory locust, has caused population upsurges in new areas, which have occasionally led to outbreaks and plagues. Some outbreaks appear to have been a reaction to the initial disturbance and have never recurred while others recur when meteorological conditions are favourable. Continued agricultural development in tropical and sub-tropical areas of the Old World will bring the risk of further upsurges of tropical migratory locust.

Résumé

Dans les principales regions de forte reproduction du criquet migrateur Locusta migratoria migratorioides (R & F), au Mali, Chad, Soudan et Madagascar l'homme, par ses activités agricoles et pastorales, a joué un rôle important dans le maintien du nombre de criquets au dessus des niveaux trouvés dans les terres non cultivées.

Le dévelopement récent et rapide de l'agriculture, particulierement les randes cultures des monocotylédones d'été, dans des régions où le climat est favorable aux criquets migrateurs a permis l'apparition de populations dans de nouvelles regions. Des domages ont été parfois enregistrés. Certains sont apparus par réaction aux pertubations initiées et n ont jamais pu étre réparés alors que dautres s'estompent quand les conditions météorologiques sont favorables.

Le dévelopement continu de l'agriculture dans les régions tropicales et sub-tropicales du Vieux Monde amène le risque d'autres catastrophes causé par le criquet migrateur.

Keywords

Tropical migratory locustLocusta migratoria migratorioides plaguescroppingCriquet migrateurculturesutilisation des terres.
Type
Contributed Papers
Information
International Journal of Tropical Insect Science , Volume 8 , Issue 4-5-6: Recent Advances in Research on Tropical Entomology , December 1987 , pp. 969 - 975
Copyright
Copyright © ICIPE 1987

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

REFERENCES

Farrow, R. A. (1972) Phase changes in the African migratory locust Locusta migratoria migratorioides (R. & F.), in its main outbreak area on the Middle Niger in 1967–1968 in relation to outbreaks. In Proceedings of the International Study Conference on the Current and Future Problems of Acridology, London, United Kingdom, 6–16 July 1970 (Edited by Hemming, C. F. and Taylor, T. H. C.), pp. 315–329. Centre for Overseas Pest Research: London.Google Scholar
Farrow, R. A. (1975a) Comparative plague dynamics of tropical locusta (Orthoptera, Acrididae). Bull. ent. Res. 64, 401–411.CrossRefGoogle Scholar
Farrow, R. A. (1975b) The African migratory locust in its main outbreak area of the Middle Niger: quantitative studies of solitary populations in relation to environmental factors. Locusta No. 11.Google Scholar
Farrow, R. A. (1979) Causes of recent changes in the distribution and abundance of the migratory locust (Locusta migratoria L.) in Australia in relation to plagues. CSIRO Aust. Div. Ent. Rep. No. 9, 1–32.Google Scholar
Roffey, J. (1972) Locusta outbreaks in the Philippines Acrida 1, 177–188.Google Scholar
Uvarov, B. P. (1936) The Oriental migratory locust (Locusta migratoria manilensis, Meyen 1935). Bull. ent. Res. 27, 81–104.CrossRefGoogle Scholar
Wintrebert, D. and Ohabuike, J. (1973) Report of Sudan Mission. Report No. UNDP(SF) AML/BIO/2, 1–50. FAO Rome.Google Scholar