Skip to main content Accessibility help
×
Home

Laboratory toxicity of the crude extracts of Piper guineense schum and thonn,Azadirachta indica A. Juss and Parkia clappertoniana (Jacq) to the termites Macrotermes nigeriensis (Sjostedt) (Isoptera: Termitidae)

  • Matt F. Ivbijaro (a1), V. C. Umeh (a1) and H. J. W. Mutsaers (a1)

Abstract

Aqueous extracts (5%) of the seeds Parkia clappertoniana (Jacq), Azadirachta indica A. Juss, and Piper guineense Schum and Thonn caused 90% mortalityof the worker caste with P. guineense, and 86% mortality with A. indica and P. clappertoniana respectively within 3 hr of topical application. At 24 hr, mortality of Macrotermes nigeriensis (Sjostedti) workers was 100% with the same concentration of each extract. Oral toxicity at 3 hr to the worker caste using cuttings of cassava, Manihotesculenta Crantz impregnated with each extract gave 65% mortality with Piper, and 45 and 29% with Azadirachta and Parkia, respectively. Mortalityby oral toxicity reached 100% in 12 hr with Piper, 95 and 69%, respectively with Azadirachta and Parkia. Increasing the concentrations of each extract to 15% did not significantly (P > 0.05) increase the toxicities of the extracts to the worker caste even at prolonged exposure periods.

Des essais biologiques à une dose des 5% portant sur le termite, Macrotermes nigeriensis (Sjostedti) et utilisant des extraits aqueux de semences de Parkia clappertoniana (Jacq), d' Azadirachta indicaA. Juss et de Piper guineense Schum et Thonn ont entraine 90% de mortalitéau sein de la caste des ouvrières avec une concentration à 5% de P. guineense, et 86% de mortalité avec une concentration à 5% de A. indica et P. clappertoniana respectivement, en l'espace de trois heures après une application tropique.A 24 heures, le taux de mortalité chez les ouvrières s'élevant à 100% avec une concentration à 5% de chaque extrait. La toxicité orale administrée à la caste des ouvrières, à l'aide de boutures de manioc, Manihot esculenta Crantz impregnées de 5% de chaque extrait a donné en 3 hr, 65% de mortalité avec Piper et 45 et 29%, respectivement, avec Azadirachta et Parkia. La mortalité due à toxicité orale a attient 100% en 12 hr avec Piper, 95% et 69% respectivement avec Azadirachta et Parkia. En portant les concentrations de chaque extraits à 15%, il n'a pas été possible d'accroitre de manière significative (P >0,05) les toxicités des extraits pour la caste des ouvrières même si on les expose pendant de plues longues périodes.

Copyright

References

Hide All
Butterworth, J. H. and Morgan, E. D. (1971) Investigation of the locust feeding inhibition of the seeds of the neem tree, Azadirachta indica. J. Insect Physiol. 17, 969977.
Fagoonee, I. (1987) Use of neem in vegetable crop protection in Mauritius. In Natural Pesticides from the Neem Tree (Azadirachta indica A. Juss) and other tropical plants (Edited by Schmutterer, H. and Ascher, K. R. S.), pp. 419–130. Proceedings of the Third International Neem Conference, Nairobi, Kenya, 1986. (GTZ) GmbH Eschborn.
Ivbijaro, M. F. (1990) The efficacy of seed oils of Azadirachta indica A. Juss and Piper guineense Schum and Thonn on the control of Callosobruchus maculatus F. Insect Sci. Applic. 2, 149152.
Ivbijaro, M. F. and Bolaji, O. O. (1990) Effects of cypermethrin dimethoate and extracts of Piper guineense and Azadirachta indica on the pests and yield of cowpea, Vigna unguiculata. J. Agric. Sci. Cambridge 115, 227231.
Lin, T. S. and Wang, C. L. (1988) The antitermite properties of extracts from Melia azaderach Linn. Bull. Taiwan For, Res. Ins. New series 3, 255261.
Logan, J. W. M., Cowie, R. H. and Wood, T. G. (1990) Termite (Isoptera) control in agriculture and forestry by non-chemical methods: areview. Bull. Entomol. Res. 80, 309330.
Malaka, S. L. O. (1972) Some measures applied in the control of termites in parts of Nigeria. Nigerian Entomol. Mag. 2, 137141.
Saxena, R. C. (1987) Neem seed derivatives for management of rice insect pests—a review of recent studies. In Natural Pesticides from the Neem Tree (Azadirachta indica A. Juss) and Other Tropical Plants (Edited by Schmutterer, H. and Ascher, K. R. S.), pp. 5580. Proceedings of the Third International Neem Conference, Nairobi, Kenya, 1986. (GTZ) GmbH Eschborn.

Keywords

Laboratory toxicity of the crude extracts of Piper guineense schum and thonn,Azadirachta indica A. Juss and Parkia clappertoniana (Jacq) to the termites Macrotermes nigeriensis (Sjostedt) (Isoptera: Termitidae)

  • Matt F. Ivbijaro (a1), V. C. Umeh (a1) and H. J. W. Mutsaers (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed