Impact of Smicronyx spp. [Coleoptera:Curculionidae] on fruit development of the parasitic weed Striga hermonthica [Scrophulariaceae]: histological study and prospects for biological control

• Autorzy: Pronier I. , Pare J. , Vincent C. , Salle G.
• Języki publikacji: EN

Abstrakty

EN

Witchweeds, especially Striga spp. (Scrophulariaceae), have become a major pest for cereal crops in Africa. Presently there are no efficient management methods to alleviate the agronomical problem posed by witchweeds. In a multidisciplinary research program addressed to the Striga problem, we conducted histological work to study the effects of a weevil (Smicronyx spp.) on Striga seed production. The embryological development of Striga hermonthica was studied in normal (unattacked) and attacked (by Smicronyx weevils) capsules. The results on the impact of Smicronyx weevils on Striga fruit are described. Our findings should be of interest in implementing a Striga management program based on seed bank control. Seed bank management should be integrated with other control tactics to achieve a practical and agronomical impact on Striga populations.

Słowa kluczowe

EN

fruit development; Striga hermonthica; Scrophulariaceae; Curculionidae; pollination; morphology; Smicronyx; cereal crop; embryological development; transformation; fertilization; parasitic weed; segmentation; Coleoptera; Africa; Striga; embryo

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 1998
• Tom: 40
• Opis fizyczny: p.9-13,fig.

Twórcy

autor

Pronier I.

• Universite de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, France

autor

Pare J.

autor

Vincent C.

autor

Salle G.

Bibliografia

• Berner, D. K., J. G. Kling, and B. B. Singh. 1995. Striga research and control. A perspective from Africa. Plant Disease 79: 652-660.
• Bashir, M. O. 1987. The potential for biocontrol of witchweeds. In:
• L. J. Musselman [ed.], Parasitic weeds in agriculture, vol. 1: Striga, 183-206. CRC Press Inc., Boca Raton (Florida)
• Jost, A., J. Kroschel, and J. Sauerborn. 1996. Studies on Smicronyx spp. and Junonia orithya and their potential for biological control of Striga hermonthica in Northern Ghana. In: M. T. Monero et al. [eds.], Advances in parasitic plant research. Proceedings of the 6th International Parasitic Weed Symposium, 888-898. Cordoba, Spain.
• Kroschel, J., A. A. Abbasher, and J. Sauerborn. 1995. Herbivores of Striga hermonthica in Ghana and approaches to their use as biocontrol agents. Biocontrol Science and Technology 5: 163-164.
• Martoja, R., and M. Martoja. 1967. Initiations aux techniques de l’histologie animale. Masson et Cie, Paris.
• Musselman, L J. 1987. Parasitic weeds in agriculture, vol. 1: Striga, 317. Press Inc., Boca Raton (Florida).
• Pare, J., and I. Pronier. 1996. Plant embryology and control of Striga hermonthica (Scrophulariaceae), parasitic weed. Zoológica Poloniae 41: 91-97.
• Pare, I, B. Dembele, O. Ouedraogo., A. Raynal-Roques, C. Tuquet, and G. Salle. 1997. Dynamics of flowering and embryology of Striga hermonthica (Del.) Benth. (Scrophulariaceae): implications for chemical control. International Journal of Pest Management 43: 285-290.
• Pronier, I. 1997. La galle du fruit de Striga hermonthica, Scrophulariaceae parasite des cultures vivrieres africaines, induites par le Smicronyx (Coleoptere: Curculionides). Memoire de Diplôme d’Etudes Doctorales, Universite Pierre et Marie Curie, Paris, France,
• Salle, G., and A. Raynal-Roques. 1989. Le Striga. La Recherche 206: 44-52.
• Salle, G., A. Raynal-Roques, and C. Tuquet. 1995. Un fléau en Afrique, les Striga. Actualites Scientifiques. La Vie des Sciences 12: 27-46.
• Sauerborn, J. 1991. The economic importance of the phytoparasites Orobanche and Striga. in: Ransom et al. [eds], Proceedings of the 5th International Symposium on Parasitic Weeds, 137-143. CIMMYT, Nairobi, Kenya.
• Traore, D. 1995. Bionomics of Smicronyx guineanus Voss and S. umbrinus Hustache (Coleoptera: Curculionidae), potential biocontrol agents of Striga hermonthica (Del.) Benth. (Scrophulariaceae) in Burkina Faso (West Africa). Ph.D. dissertation, McGill University, Montreal, Canada.