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Inventaire Commente de la Bibliographie sur le Criquet Senegalais, Oedaleus senegalensis (Krauss, 1877)

Published online by Cambridge University Press:  19 September 2011

Tahir Diop
Tahir Diop
Affiliation:
Département de Formation en Protection des Végétaux, Centre AGRHYMET, B.P. 12625, Niamey, Niger
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Abstract

Oedaleus senegalensis is a mainly sahelian non gregarious grasshopper which is today considered as the most important crop pest acridid, especially on millet. The species has three generations per year (rarely four) and spends the dry season as diapausing/quiescent eggs. Both photoperiod and temperature influence the induction of diapause in which O. senegalensis eggs can survive several years. Migratory movements have been reported by many authors; adults may migrate up to 350 km per night. These factors enable the species' adaptation to its natural hostile environment. The current control strategies are based on monitoring of the oviposition sites of the dry season to predict the subsequent outbreaks in order to control early hatchlings during the following rainy season. The present work gives an overview of the current knowledge on the morphology, biology, ecology and control methods of the grasshopper.

Résumé

Oedaleus senegalensis (Krauss, 1877) est un sauteriau acridien non grégariapte typiquement sahélien, et qui est considéré aujourd'hui comme le principal acridien ravageur des cultures au Sahel le petit mil notamment. Cette espèce a trois générations annuelles (rarement quatre) et une diapause embryonnaire en saison sèche. La photopériode et la température influencent l'induction de cette diapause et les oeufs peuvent survivre plusieurs années. Des mouvements migratoires de l'espèce ont été signalés par plusieurs auteurs et les adultes se déplacent au moins jusqu' à 350 km par nuit. Ces deux facteurs permettent une adaptation de l'espèce à son environnement hostile. Les stratégies de lutte actuelles reposent essentiellement sur le repérage des sites de pontes, en saison sèche, afin de lutter contre les juvéniles au début de la prochaine saison des pluies. Le présent inventaire bibliographique permet de présenter le bilan des principales connaissances concernant la morphologie, la biologie, et l'écologie de cet acridien et ainsi que les moyens mis en œuvre pour son contrôle.

Keywords

AcridoideaOedaleus senegalensisSenegalese grasshopperreviewAcridoideaOedaleus senegalensiscriquet sénégalaisrevue
Type
Mini Review
Information
International Journal of Tropical Insect Science , Volume 17 , Issue 3-4 , December 1997 , pp. 277 - 291
Copyright
Copyright © ICIPE 1997

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References

REFERENCES

Abushama, F. T. and El Khider, E. T. M. (1973) Colour change in the grasshopper Oedaleus senegalensis Krauss (Fam.Acrididae). Z. angew. Entomol. 72, 415–421.CrossRefGoogle Scholar
Ahluwalia, P. J. S., Sikka, H. L. and Venkatesh, M. V. (1977) Behaviour of swarms of Oedaleus senegalensis Krauss (Orthoptera: Acrididae: subfamily Oedipodinae). Indian J. Entomol. 38, 114–117.Google Scholar
Ahmad, F. U., Ahmad, M. K., Baqai, M. and Kazmi, S. R. A. (1979) Grasshoppers of Balochistan and their distribution—1. Metaleptea 2, 15–21.Google Scholar
Amatobi, C. I. (1985) Oviposition preference and the influence of cultivation on egg hatching in Oedaleus senegalensis (Orthoptera: Acrididae). Samaru J. Agric. Res. 3, 81–85.Google Scholar
Amatobi, C. I. (1991) Grasshopper control: Some alternatives to chemical application. Noma 9, 12–18.Google Scholar
Amatobi, C. I., Apeji, S. A. and Oyidi, O. (1986) Weeding as a means of reducing the population of grasshopper pests and damage on pearl millet (Pennisetum americanum (L.) K. Schaum) in Northern Nigeria. Insect Sci. Applic. 7, 99–102.Google Scholar
Amatobi, C. I., Apeji, S. A. and Oyidi, O. (1988) Effects of farming practices on populations of two grasshopper pests (Kraussaria angulifera Krauss and Oedaleus senegalensis Krauss) (Orthoptera: Acrididae) in Northern Ghana. Trop. Pest Manage. 34, 173–179.CrossRefGoogle Scholar
Amatobi, C. I., Apeji, S. A. and Oyidi, O. (1991) Field observation on the diurnal activities of the sahelian plague grasshopper Oedaleus senegalensis Krauss (Orthoptera: Acrididae) in northern Nigeria. Nigerian J. Entom. 7, 1–19.Google Scholar
Anene, C. (1991) Investigation on the structure of ovary of Oedaleus senegalensis Krauss (Orthoptera: Acrididae). Nigerian J. Entom. 7, 24–27.Google Scholar
Anene, C. and Vajime, C. G. (1990) Parasites, parasitoids and predators of Oedaleus senegalensis Krauss (Orthoptera: Acrididae) in Nigeria. Insect Sci. Applic. 11, 27–34.Google Scholar
Arnaud, M., Forest, F. and Launois, M. (1982) Automatisation d'un modèle écologique original propre à Oedaleus senegalensis (Krauss, 1877) (Orthoptera, Acrididae). Agron. Trop. 37, 159–171.Google Scholar
Batten, A. (1969) The senegalese grasshopper Oedaleus senegalensis Krauss. J. appl. Ecol. 6, 27–45.Google Scholar
Bergès, J. C., Chiffaud, J. and Mestre, J. (1992) Apport de la télédétection spatiale à l'identification des zones favorables au criquet sénégalais. Veille climatique satellitaire 40, 25–33.Google Scholar
Bernadi, M. (1986) Le problème des sauteriaux, pp. 43–57. In Compte rendu du séminaire internationl du projet CILSS de lutte intégrée Niamey (Niger) 6–13 décembre 1984.Google Scholar
Bhatia, D. R. and Ahluwalia, P. J. S. (1967) Oedaleus senegalensis Krauss (Orthoptera: Acrididae subfamily Oedipodinae) plague in Rajasthan. Plant Prot. Bull. (New Delli) 18, 8–12.Google Scholar
Boys, H. A. (1978) Food selection by Oedaleus senegalensis (Acrididae: Orthoptera) in grassland and millet fields. Entomol. exp. Appl. 24, 78–86.CrossRefGoogle Scholar
Brader, L. (1988) Control of grasshoppers and migratory locusts. British Crops Protection Council 1, 283–288.Google Scholar
Burt, P. J. A., Colvin, J. and Smith, S. M. (1997) Forecasting the Early-Season Eclosion of Oedaleus senegalensis in the Sahel: The Role of Remotely Sensed Rainfall Data. In New Strategies in Locust Control (Edited by Krall, S., Peveling, and Ba Diallo, D.). Birkhauser Verlag Basel, Switzerland.Google Scholar
Castel, J. M. (1975) Rapport de mission au Mali du 26 mai au 5 juin 1975. Document OCLALAV (Dakar), 12 pp.Google Scholar
Chandra, S. (1982) Screening of some desert plants for feeding preference in Oedaleus senegalensis Krauss (Orthoptera: Acrididae, subfamily Oedipodinae). Plant. Prot. Bull. (New Delhi) 35, 15–17.Google Scholar
Chandra, S. (1983) Some field observations on a small concentration of Oedaleus senegalensis Krauss (Orthoptera: Acrididae) in the Indian desert. Plant Prot. Bull. (New Delhi) 35, 9–13.Google Scholar
Cheke, R. A. (1978) Theoretical rates of increase of gregarious and solitarious populations of the desert locust. Oecologia 35, 161–171.Google Scholar
Cheke, R. A. (1990) A migrant pest in the Sahel: The senegalese grasshopper Oedaleus senegalensis. Phil. Trans. R. Soc. Lond. 328, 539–553.Google Scholar
Cheke, R. A., Fishpool, L. D. C. and Forrest, G. A. (1980a) Oedaleus senegalensis (Krauss) (Orthoptera: Acrididae: Oedipodinae). An account of the 1977 outbreak in West Africa and notes on eclosion under laboratory conditions. Acrida 9, 107–132.Google Scholar
Cheke, R. A., Fishpool, L. D. C. and Ritchie, J. M. (1980b) An ecological study of the eggs-pods of Oedaleus senegalensis (Krauss) (Orthoptera: Acrididae). J. nat. Hist. 14, 363–371.Google Scholar
Chiffaud, J. and Mestre, J. (1991) Reconnaissance des oothèques d'acridiens—Apport des données anatomiques de l'appareil reproducteur. Sahel PV Info 31, 2–3.Google Scholar
CIRAD (1992) Rapport de la première revue externe du PRIFAS. Centre de Coopération Internationale en Recherche agronomique pour le Développement, Montpellier. In French, English summary.Google Scholar
Colvin, J. (1997) Biotic and abiotic factors affecting the population dynamics of the Senegalese grasshopper, Oedaleus senegalensis. In New Strategies in Locust Control (Edited by Krall, S., Peveling, and Ba Diallo, D.). Birkhauser Verlag Basel, Switzerland.Google Scholar
Colvin, J. and Cooter, R. J. (1995) Diapause induction in the Senegalese grasshopper, Oedaleus senegalensis. Physiol. Entomol. 20, 13–17.Google Scholar
Colvin, J. and Holt, J. (1996) Modèle d'étude des effets de la pluviométrie, de la prédation et de la quiescence des oeufs sur la dynamique des population du criquet sénégalais, Oedaleus senegalensis. SECHERESSE 7, 145–150.Google Scholar
Coop, L. B. and Croft, B. A. (1992) Damage rates to pearl millet by adults of grasshopper species and Psalydolytta blister beetles in Mali. Trop. Pest Manage. 38, 201–205.CrossRefGoogle Scholar
Coop, L. B. and Croft, B. A. (1993) Pearl injury by five grasshopper species (Orthoptera: Acrididae) in Mali. J. Econ. Entomol. 86, 891–898.CrossRefGoogle Scholar
COPR (1982) The Locust and Grasshopper Agricultural Manual. Centre for Overseas Pest Research, London, 690 pp.Google Scholar
Davey, J. T., Descamps, M. and Demange, R. (1959) Notes on the Acrididae of the French Sudan, with special reference to central Niger Delta. Part 2. Bull. IFAN 21, 565–600.Google Scholar
Descamps, M. (1953) Observations relatives au criquet migrateur africain et à quelques autres espèces d'Acrididae du Nord Cameroun. Agron. trop. 8, 567–613.Google Scholar
Descamps, M. (1975) Visite d'expert-conseil dans le bassin Tchadien. Etudes biologiques. Recherches sur le criquet migrateur africain. PNUD/FAO. RAF 69/146. 14 pp.Google Scholar
Diop, T. (1987) Contribution à l'étude de la dynamique des populations d'acridiens dans la vallée du Sénégal. Thèse de Doctorat de l'Université Pierre et Marie Curie (Paris VI), 154 pp., 8 p. d'annexes.Google Scholar
Diop, T. (1993) Observations préliminaires sur le rôle de la photopériode sur la diapause embryonnaire du Criquet sénégalais, Oedaleus senegalensis (Krauss, 1877). Insect Sci. Applic. 14, 471–475.Google Scholar
Diop, T. (1995) Effets de la photopériode sur l'induction de la diapause embryonnaire du Criquet sénégalais, Oedaleus senegalensis (Krauss, 1877) (Orthoptera, Acridoidea). J. Afr. Zool. 109, 161–172.Google Scholar
Diop, T. (1998) The effect of temperature and sand moisture on the hatching of eggs of the senegalese grasshopper, Oedaleus senegalensis. Bull. ent. Res. London. (sous press).Google Scholar
Dirsh, V. M. (1961) A preliminary revision of the families and subfamilies of Acridoidea (Orthoptera: Insecta). Bull. Brit. Mus. nat. Hist. 10, 351–419.Google Scholar
Duranton, J. F., Launois, M., Launois-Luong, M. H. et Lecoq, M. (1983) Contribution à l'inventaire faunistique des Acridiens de l'Archipel du Cap-Vert. Bull. Soc. ent. France 88, 197–224.Google Scholar
Duranton, J. F., Launois, M., Launois-Luong, M. H. et Lecoq, M. (1984) Nouvelle contribution à l'inventaire faunistique des Acridiens de l'Archipel du Cap-Vert. Signalisation du genre Wernerella Karny 1907 et description de Wernerella atlantica Popov n.sp. (Orth. Acrididae). Cour. Forsch.-Inst. Senckenberg 68, 39–17.Google Scholar
Faure, J. C (1932) The phases of locusts in South Africa. Bull. ent. Res. 23, 293–405.Google Scholar
Fishpool, L. D. S. (1982) The ecology of the west African grasshopper fauna of the sahel and Sudan savanna with special reference to Oedaleus senegalensis (Krauss, 1877). PhD Thesis, University of London, 442 pp.Google Scholar
Fishpool, L. D. C. and Cheke, R. A. (1983) Protracted eclosion and viability of Oedaleus senegalensis (Krauss, 1877) eggs (Orthoptera, Acrididae). Entomol. month. Mag. 119, 215–219.Google Scholar
Golding, F. D. (1948) The Acridinae (Orthoptera) of Nigeria. Trans. R. ent. Soc. (London) 99, 517–587.Google Scholar
Greathead, D. J. (1963) A review of the insect enemies of Acridoidea (Orthoptera). Trans. R. ent. Soc. (London) 114, 114–437.Google Scholar
Greathead, D. J. (1992) Natural Enemies of Tropical Locusts and Grasshoppers: Their Impact and Potential as Biological Agents, pp. 105–121. CAB International (Silwood Park) UK.Google Scholar
Henry, J. E., Fowler, J. L., Wilson, M. C. and Onsager, J. A. (1985a) Infection of west African grasshoppers with Nosema locustae Canning (Protozoa: Microsporida: Nosematidae). Trop. Pest Manage 31, 144–147.Google Scholar
Henry, J. E., Wilson, M. C., Oma, E. A. and Fowler, J. L. (1985b) Pathogenic micro-organisms isolated from west African grasshoppers (Orthoptera: Acrididae). Trop. Pest Manage. 31, 192–195.Google Scholar
Hergert, C. R. (1975) An analysis of grasshopper problems in Kano. Samaru Newsletter 17, 91–94.Google Scholar
Jago, N. D. (1983) Light trap sampling of the grasshopper Oedaleus senegalensis (Krauss, 1877) (Acrididae: Oedipodinae) and other species in West Africa: A critique, pp. 165–198. In Proceedings of the 2nd Triennal Meeting, Pan American Acridological Society, Bozeman, USA, 21–25 July 1979 (Edited by Tyrkus, M., Cantrall, I.J. and Carbonell, C.S.).Google Scholar
Jago, N. D., Kremer, A. R. and West, C. (1993) Pesticides on Millet in Mali. NRI Bulletin 50. Natural Resources Institute. Chatham, UK. 46 pp.Google Scholar
Joyce, R. J. V. (1952) The ecology of grasshoppers in East Central Sudan. Anti-Locust Bull. 11, 1–103.Google Scholar
Krauss, H. A. (1877) Orthopteren vom Senegal gesammelt von Dr. Frantz Steindachner. Sber. Akad. Wiss. Wien 76, 29–63.Google Scholar
Launois, M. (1978a) Modélisation écologique et simulation opérationnelle en acridologie. Application à Oedaleus senegalensis (Krauss, 1877). Ministère de la Coopération, Paris, et GERDAT, Montpellier, 212 pp.Google Scholar
Launois, M. (1978b) Manuel pratique d'identification des principaux acridiens du Sahel. Ministère de la Coopération, Paris, 256 pp.Google Scholar
Launois, M. (1979) An ecological model for the study of the grasshopper Oedaleus senegalensis in West Africa. Phil. Trans. R. Soc. Lond. 287, 345–355.Google Scholar
Launois, M., Launois-Luong, M. H. and Lecoq, M. (1988) Faune caboverdienne: Catalogue des Acridiens de l'Archipel du Cap-Vert. Cour. Forsch.-Inst. Senckenberg, 105, 155–163.Google Scholar
Launois, M. et Launois-Luong, M. H. (1989) Oedaleus senegalensis (Krauss, 1877), sauteriau ravageur du Sahel. Collection Acridologie Opérationnelle No. 4, CILSS-DFPV, Niamey, 72 pp.Google Scholar
Launois-Luong, M. H. (1979a) Etude de la production des oeufs de Oedaleus senegalensis (Krauss) au Niger (Région de Maradi). Bull. IFAN 41, 128–147.Google Scholar
Launois-Luong, M. H. (1979b) Etude comparée de l'activité génésique de sept acridiens du Sahel dans des conditions éco-météorologiques semblables. Ann. Zool. Fedi. anim. 1, 202–226.Google Scholar
Launois-Luong, M. H. (1980) Etude expérimentale des potentialités de dégâts des principaux acridiens du Sahel. Bull. IFAN (1979) 41, 774–814.Google Scholar
Launois-Luong, M. H. and Lecoq, M. (1989) Vade-mecum des criquets du Sahel. Collection Acridologie Opérationnelle no. 5, CILSS-DFPV, Niamey, 126 pp.Google Scholar
Lecoq, M. (1978a) Biologie et dynamique d'un peuplement acridien de zone soudanienne en Afrique de l'ouest (Orthoptera, Acrididae). Ann. Soc. ent. Fr. 14, 603–681.CrossRefGoogle Scholar
Lecoq, M. (1978b) Le problème sauteriaux en Afrique soudano-sahelienne. Agron. Trop. 33, 241–258.Google Scholar
Lecoq, M. (1988) Les Criquets du Sahel. Collection Acridologie Opérationnelle no. 1, CILSS-DFPV, Niamey, 129 pp.Google Scholar
Lecoq, M. (1995) Forecasting systems for migrant pests. III. Locust and grasshopper in West Africa and Madagascar. In Insect Migration (Edited by Drake, V. A. and Gatehouse, A. G.). Cambridge University Press.Google Scholar
Lima, M. L. L., Brito, J. M. and Henry, J. E. (1992) Biological Control of Grasshoppers in the Cape Verde Islands. CAB International. National Institute for Agricultural Research, CX postal 128, Praia, Cape Verde.Google Scholar
Mallamaire, A. (1948) Acridiens migrateurs et acridiens sédentaires en Afrique occidentale. Agron. Trop. Nogent 3, 630–634.Google Scholar
Mathée, M. J. (1951) The structure and physiology of the egg of Locustana pardalina (Walk.). Scentific Bulletin, Department of Agriculture, South Africa, 316 83 pp.Google Scholar
McAleer, I. P. B. (1977) OSRO Plant Protection Project: Grasshopper Pests of the Sahel. Centre for Overseas Pest Research, London. 27 pp.Google Scholar
Mestre, J. (1988) Les acridiens des formations herbeuses d'Afrique de l'ouest. Ministère de la Coopération, Paris, et CIRAD/PRIFAS, Montpellier, 330 pp.Google Scholar
Moizuddin, M. (1991) Studies of Oedaleus senegalensis (Krauss) (Orthoptera: Acrididae) with special reference to its habitat and genitalia. Proceedings, Eleventh Pakistan Congress of Zoology 11, 107–117.Google Scholar
Neville, A. C. (1963) Daily growth layers for determining the age of grasshopper populations. Oikos 14, 1–8.CrossRefGoogle Scholar
Niassy, A., Beye, A. and van der Valk, H. C. H. G. (1993) Impact des applications de Fénitrothion sur la mortalité naturelle des oothèques de sauteriaux au Sénégal (traitements de 1991). FAO Projet Eclo/Sen/003/ /Net ‘Locustox’. DPV Dakar, Sénégal.Google Scholar
OCLALAV (1973–1983) Rapports mensuels. Organisation Commune de Lutte Antiacridienne et de Lutte Antiaviaire, Dakar.Google Scholar
Okay, S. (1956) The effect of temperature and humidity on the formation of green pigment in Acrida bicolor (Thunberg). Archives Int. Physiol. Biochimie Vol. LXIV Fase. 1, 80–91.Google Scholar
Ouedraogo, R. (1993) Investigations on the use of Beauveria bassiana against the senegalese grasshopper, Oedaleus senegalensis (Krauss, 1877) (Orthoptera: Acrididae). Simon Fraser University, Burnaby, British Columbia, Canada. Thesis of MPM. 68 pp.Google Scholar
Popov, G. B. (1970) Preliminary report on the grasshopper survey in the northern state of Nigeria during September-December 1970. (Unpublished report in COPR Archives).Google Scholar
Popov, G. B. (1976) The 1974 outbreak of grasshoppers in western Africa, pp. 35–43. In Report of the Sahel Crop Pest Management Conference, USAID report. University of California, Berkeley.Google Scholar
Popov, G. B. (1980) Studies on oviposition, egg development and mortality in Oedaleus senegalensis (Krauss) (Orthoptera, Acridoidea) in the Sahel. COPR Miscellaneous Report no. 53, 1–48.Google Scholar
Popov, G. B. (1987) Guide FAO de prospection d'oothèques particulièrement d Oedaleus senegalensis (Krauss, 1877) FAO (Rome), 21 pp.Google Scholar
Popov, G. B. (1988) Sahelian grasshoppers. Overseas Development Natural Resources Institute Bulletin no. 5, 87 + vi pp.Google Scholar
Popov, G. B. (1989) Les larves des criquets du Sahel. Overseas Development Natural Resources Institute, Chatham, v + 158 pp.Google Scholar
Popov, G. B. (1996) Quelques effets de la secheresse sahélienne sur la dynamique des populations acridiennes. SECHERESSE vol. 2, 91–97.Google Scholar
Popov, G. B., Launois-Luong, M. H. and Van der Weel, J. J. (1990) Les oothèques des criquets du Sahel. Collection Acridologie Opérationnelle no. 7, CILSSDFPV, Niamey, 135 pp.Google Scholar
Reynolds, D. R. and Riley, J. R. (1988) A migration of grasshoppers, particularly Diabolocatantops axillaris (Thunberg) (Orthoptera: Acrididae), in the West African Sahel. Bull, entomol. Res. 78, 251–271.Google Scholar
Riley, J. R. and Reynolds, D. R. (1979) Radar-based studies of the migratory flight of grasshoppers in the middle Niger area of Mali. Proc. R. Soc. Lond. B 204, 67–82.Google Scholar
Riley, J. R. and Reynolds, D. R. (1983) A long-range migration of grasshoppers observed in the Sahelian zone of Mali by two radars. J. Anim. Ecol. 52, 167–183.Google Scholar
Riley, J. R. and Reynolds, D. R. (1990) Nocturnal grasshopper migration in West Africa: Transport and concentration by the wind, and the implication for air-to-air control. Phil. Trans. R. Soc. Lond. Series B, Biological Sciences 328, 655–672.Google Scholar
Risbec, J. and Mallamaire, A. (1949) Les animaux prédateurs et les insectes parasites des riz cultivés en Afrique occidentale. Agron. Trop. 4, 70–76.Google Scholar
Ritchie, J. M. (1978) Melanism in Oedaleus senegalensis and other oedipodines (Orthoptera, Acrididae). J. Nat. Hist. 12, 153–162.CrossRefGoogle Scholar
Ritchie, J. M. (1981) A taxonomie revision of the genus Oedaleus Fieber (Orthoptera: Acrididae). Bull. Br. Mus. nat. Hist. (Ent. Ser.) 43, 83–183.Google Scholar
Ritchie, J. M. (1983) Determination of sex and instar number of nymphs of the senegalese grasshopper, Oedaleus senegalensis Krauss (Orthoptera: Acrididae). Entomol. Month. Mag. 119, 97–101.Google Scholar
Rowell, C. H. F. (1971) The variable coloration of the acridoid grasshoppers. Adv. Insect Physiol. 8, 146–198.Google Scholar
Saraiva, A. C. (1962) Plague locusts Oedaleus senegalensis (Krauss) and Schistocerca gregaria (Forskal) in the Cape Verde Islands. Estudios agron. 3, 61–89.Google Scholar
Singh, S. and Bhatia, D. R. (1965) Gregarization of low density desert locust hopper populations as a result of association with other grasshoppers. Plant Prot. Bull. 17, 1–2, 7–9.Google Scholar
Steedman, A. (1990) Locust Handbook, 3rd edn. Natural Resources Institute, Chatham.Google Scholar
Uvarov, B. P. (1942) New and less known palaearctic Orthoptera. Trans. Am. ent. Soc. 67, 303–361.Google Scholar
Uvarov, B. P. (1966) Grasshoppers and Locusts. A Handbook of General Acridology, I. Cambridge University Press London.Google Scholar
Venkatesh, M. V., Ahluwalia, P. J. S. and Harjai, S. C. (1972) Influence of rainfall on the egg diapause of Oedaleus senegalensis Krauss (Orthoptera: Acrididae). Plant Prot. Bull. 23, 20–27.Google Scholar
Walsh, J. (1986) Grasshopper control program successful. Science, Wash. 234, 815–816.Google Scholar
Yonli, O. T. (1990) Parasitisme des oothèques de sauteriaux au Mali. Sahel PV Info 23, 3–5.Google Scholar