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Entomophaga

, Volume 29, Issue 1, pp 29–39 | Cite as

Introduction and evaluation ofChilocorus bipustulatus [Col.: Coccinellidae] for control ofParlatoria blanchardi [Hom.: Diaspididae] in date groves of Niger

  • Philip A. Stansly
Article

Abstract

Chilocorus bipustulatus L. was successfully established in oases of the Aïr Mountain region of Northern Niger (West Africa), where it became the major cause of mortality among adult females of the armored scaleParlatoria blanchardi Targioni-Tozzetti. This resulted in significantly lower scale infestation of date palms in a test plot when compared to a control with no introduced ladybeetles. The coccinellids were able to reproduce year-round, but during the hot season were largely confined to natural refuges composed of dense stands of date palms. Dispersal and multiplication occurred primarily during the rainy season, toward the end of which the greatest suppression of scale populations was seen.

Keywords

Plant Pathology Rainy Season Adult Female Mountain Region Dense Stand 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Chilocorus bipustulatus L. a été établi avec succés dans les oasis des montagnes de l'Aïr, au nord du Niger, où il est devenu la cause principale de mortalité des adultes femelles de la cochenille,Parlatoria blanchardi Targoni-Tozzetti. Il en résulta un taux d'infestation des dattiers expérimentaux significativement plus bas par rapport au témoin sans coccinelles introduites. Apte à la reproduction toute l'année, la coccinelle se limitait aux touffes denses de dattiers qui constituaient des abris naturels pendant la saison sèche. Elle se dispersait et se multipliait surtout durant la saison pluvieuse, vers la fin de laquelle, on assistait à la plus grande réduction de la population de cochenille.

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References

  1. Applebaum, S.W., Kfir, R., Gerson, U. &Taomor, U.. — 1971. Studies on the summer decline ofChilocorus bipustulatus in citrus grooves of Israel. — Entomophaga, 16, 433–444.CrossRefGoogle Scholar
  2. Gaillot, P.. — 1967. Contribution à la lutte biologique contreParlatoria blanchardi Targ. —L'entomologiste, 23, 5–6.Google Scholar
  3. Gerson, U.. — 1967. Observations ofHemisarcoptes coccophagus Meyer [Astigmata: Hemisarcoptidae], with a new synonym. —Acarologia, 9, 631–638.Google Scholar
  4. Hagen, K.S., Sawall, E.F. & Tassan, R.L. — 1971. The use of food sprays to increase effectiveness of entomophagous insects. —Proc. Tall Timbers Conf. Ecol. Anim. Contr. by Habitat Mgmt., Tallahassee Fla. 59–81.Google Scholar
  5. Hecht, O.. — 1936. Studies on the biology ofChilocorus bipustulatus [Coleoptera: Coccinellidae] an enemy of the red scaleChrysomphalus aurantii. —Bull. Soc. R. Entomol. Egypte, 25, 299–326.Google Scholar
  6. Hodek, I.. — 1973. The Biology ofCoccinellidae. —Dr. W. Junk N.V., The Hague.Google Scholar
  7. Iperti, G. &Brun, J.. — 1969. Rôle d'une quarantaine pour la multiplication desCoccinellidae coccidiphages destinés à combattre la cochenille du palmier-dattier (Parlatoria blanchardi Targ). —Entomophaga, 14, 149–157.CrossRefGoogle Scholar
  8. Iperti, G., Laudého, Y., Brun, J. &Choppin de Janvry, E.. — 1970. Les entomophages deParlatoria blanchardi Targ. dans les palmeraies de l'Adrar mauritanien. II. Introduction, acclimatation et efficacité d'un nouveau prédateur[Coccinellidae] Chilocorus bipustulatus L. variétéiranensis (var. nov.). —Ann. Zool. Ecol. Anim., 2, 607–638.Google Scholar
  9. Kaufmann, T.. — 1977a. Bionomics ofChilocorus bipustulatus and its future for the biological control of the data scale,Parlatoria blanchardi Targ. in Niger, W. Africa. —Environ. Entomol., 6, 559–562.Google Scholar
  10. Kaufmann, T.. — 1977b.Hemisarcoptes sp. and biological control of the data palm scale,Parlatoria blanchardi Targioni in the sahel region of Niger. —Environ. Entomol. 6, 882–884.Google Scholar
  11. Kehat, M.. — 1968. Survey and distribution of common lady beetles [Col.: Coccinellidae] on date palm trees in Israel. —Entomophaga, 12, 119–125.Google Scholar
  12. Kehat, M.. — 1968a. The phenology ofPharoscymmus sp. andChilochorus bipustulatus L. [Coccinellidae] in date palm plantations in Israel. —Ann. Epiphyt., 19, 605–614.Google Scholar
  13. Kehat, M.. — 1968b. The feeding behavior ofPharoscymnus numidicus [Coccinellidae], predator of the date palm scaleParlatoria blanchardi. —Entomol. Exp. Appl., 11, 30–42.CrossRefGoogle Scholar
  14. Laudého, Y. &Bénassy, C.. — 1969. Contribution à l'étude de l'écologie deParlatoria blanchardi Targ. en Adrar Mauritanien. —Fruits, 24, 273–287.Google Scholar
  15. Laudého, Y., Choppin de Janvry, E., Iperti, C. &Brun, J.. — 1970. Intervention bio-écologique contre la cochenille blanche du palmier-dattierParlatoria, blanchardi Targ. [Coccoidea-Diaspididae] en Adrar Mauritanien. —Fruits, 25, 147–160.Google Scholar
  16. Martin, H.E.. — 1972. Report to the Government of Saudi Arabia on Research in Plant Protection. —F.A.O., Rome.Google Scholar
  17. Smirnoff, W.A.. — 1957. La cochenille du palmier-dattier (Parlatoria blanchardi Targ.) en Afrique du Nord. Comportement, importance économique, prédateurs, et lutte biologique. —entomophaga, 2, 1–98.CrossRefGoogle Scholar
  18. Smith, B.C.. — 1965. Growth and development of coccinellid larvae on dry foods [Coleoptera: Coccinellidae]. —Can. Entomol., 97, 760–768.Google Scholar
  19. Tourneur, J.C., Hugues, R. &Pham, A.. — 1976. Efficacité prédatrice deChilocorus bipustulatus var.iranensis [Coleoptera, Coccinellidae] dans la lutte contreParlatoria blanchardi Targ. [Hemiptera, Diaspididae]. Assainissement des palmeraies de l'Adrar et du Tagent mauritaniens. —Fruits, 31, 61–66.Google Scholar
  20. Yinon, U.. — 1969. Food consumption of the armored scale lady beetle,Chilocorus bipustulatus [Col. Coccinellidae]. —Entomophaga, 14, 321–328.CrossRefGoogle Scholar

Copyright information

© Lavoisier Abonnements 1984

Authors and Affiliations

  • Philip A. Stansly
    • 1
  1. 1.Department of EntomologyTexas A&M UniversityCollege StationU.S.A.

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