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The influence of green spider mite, Mononychellus tanajoa (Bondar) infestation on some biochemical components of cassava leaves

Published online by Cambridge University Press:  19 September 2011

T. O. Ezulike  and
R. I. Egwuatu
T. O. Ezulike
Affiliation:
National Root Crops Research Institute, Umudike, P. M. B. 7006, Umuahia, Imo State, Nigeria
R. I. Egwuatu
Affiliation:
Department of Crop Science, University of Nigeria, Nsukka
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Abstract

Cassava leaves damaged by green spider mite, Mononychellus tanajoa (Bondar) and undamaged leaves were analysed in the laboratory for chlorophyll content by spectrophotometry. Proximate analysis was also carried out on the leaves in the laboratory using the Association of Official Analytical Chemists methods.

More light was absorbed by the chlorophyll extract from the undamaged leaves than in the mite-damaged leaves. More light was also absorbed at the wavelength of 663 nm than at 645 nm. The concentrations of chlorophyll a and b were higher in the undamaged leaves than in the mite-damaged leaves. The concentration of chlorophyll a was higher than that of chlorophyll b both in the undamaged and mite-damaged leaves.

Mite-damaged leaves weighed less than the undamaged leaves, both when fresh and when dried. The proximate products values were less in the mite-damaged leaves than in the undamaged leaves.

Résumé

Les feuilles du manioc endommagées par la mite Mononychellus tanajoa (Bondar) et celles intactes furent analysées pour leur teneur en chlorophylle grâce à un photospectrometre. D'autres analyses furent faites sur les feuilles en se basant sur les methodes analytiques de l'association officielle des chemistes. Une quantité importante de lumière fut absorbée par l'extrait de la chlorophylle des feuilles endomagées par les mites par rapport à celles intactes. A la longuer d'ondes 663 nm la lumiere fut absorbée efficacement comparée à la longueur d'ondes 645 nm. La concentration de la chlorophylle a et b etaient plus elevée dans les deux cas. Les feuilles endommagées par les mites avaient un poids inferieur par rapport à celles intactes fraiches comme sèches. Les valeurs d'autres substances ètaient moindre chez les feuilles endommagées que celles intactes.

Keywords

Mite-damaged leavesundamaged leaveshealthy leaveschlorophyllextractconcentrationwavelengthlight absorbanceFeuilles endommagees par les mitesfeuilles intactesfeuilles saineschlorophylleextraitconcentrationlongueur d'ondesabsorption de la lumière
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 11 , Issue 1 , February 1990 , pp. 63 - 67
Copyright
Copyright © ICIPE 1990

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References

REFERENCES

Association of Official Agricultural Chemists (A.O.A.C.) (1975) Official Methods of Analysis. (Edited by Horwitz, W.), Benjamin Franklin Station, Washington D. C.12th Edition.Google Scholar
Avery, D. J. and Briggs, J. B. (1968) Damage to leaves caused by fruit tree red spider mite, Panonychus ulmi (Koch). J. Hort. Sci. 43, 463–473.CrossRefGoogle Scholar
Ayanru, D. K. G. and Sharma, V. C. (1983) Chlorophyll depletion in leaves of field grown cassava clones infested by cassava green spider mites, Mononychellus tanajoa (Bondar) (Acarina: Tetranychidae). Trop. Agric. Trinidad, 60, 85–88.Google Scholar
Bellotti, A. C. and Schoonhoven, A. V. (1977) World distribution, identification and control of cassava pests. Proceedings of the 4th Symposium of the International Society for Tropical Root Crops, CIAT, Cali, Colombia, 1976, pp. 188–193.Google Scholar
Bellotti, A. C. and Schoonhoven, A. V. (1978) Cassava Pests and Their Control. CIAT, Cali, Colombia, Series 0 9 EC-2, pp. 1–14.Google Scholar
Bondar, G. (1938) Notas Entomologicas de Bahia II. Rev. Entomol. Brazil 9, 441–449.Google Scholar
Byrne, D. H., Bellotti, A. C. and Guerrero, J. M. (1983) The cassava mites. Trop. Pest Manage. 29, 378–394.CrossRefGoogle Scholar
Centro Internacional de Agricultura Tropical (1975) Cassava production systems. In Annual Report 1974. Cali, Colombia, pp. 54–109.Google Scholar
Centro Internacional de Agricultura Tropical (1977) Cassava production systems. In Annual Report 1976. Cali, Colombia, B1–B76.Google Scholar
Chapman, P. J., Lienk, S. E. and Curtis, O. F. (1952) Responses of apple trees to mite infestation: I. J. Econ. Entomol. 45, 815–821.CrossRefGoogle Scholar
Cock, J. H. (1978) A physiological basis of yield loss in cassava due to pests. Proceedings of the Cassava Protection Workshop, 7–12 November 1977, CIAT, Cali, Colombia, Series CE-14, pp. 9–16.Google Scholar
Doreste, E. and Aponte, O. (1978) Effecto de les ataques del complejo de acaras Tetranychidae en les rendimientos del cultivo de la yuca. Rev. Fac. de Agron. (Maracay, Venezuela) 10, 1–4.Google Scholar
Ezulike, T. O. (1987) The bionomics and control of the green spider mite, Mononychellus tanajoa (Bondar), infesting cassava Manihot esculenta (Crantz) in Nigeria. Ph.D. Thesis. Department of Crop Science, University of Nigeria, Nsukka.Google Scholar
Girling, D. J., Bennett, F. D. and Yaseen, M. (1978) Biological control of the green mite, Mononychellus tanajoa (Bondar) (Acarina; Tetranychidae) in Africa. Proceedings of the Cassava Protection Workshop, CIAT, Cali, Colombia, 7–12 November, 1977 Series CE 14, pp. 165–170.Google Scholar
Hall, F. R. and Ferre, D. C. (1975) Influence of two-spotted spider mite populations on photosynthesis of apple leaves. J. Econ. Entomol. 68, 517–520.CrossRefGoogle Scholar
Liesering, R. (1958) Zur Kenntnis der Spinnmilbe Tetranychus althaeae V. Hanst. sowie ihre Wechselbeziehungen zur Pflanze. Diss. Univ. Wurzburg.Google Scholar
Mackinney, G. (1941) Absorption of light by Chlorophyll solutions. J. Biol. Chem. 140, 315– 322.CrossRefGoogle Scholar
Maini, S. B. and Lal, S. S. (1977) Influence of Tetranychid spider mites attack on biochemical changes in cassava leaves. J. Bot. Crops 3, 51–53.Google Scholar
Nyiira, Z. M. (1978) Mononychellus tanajoa (Bondar): Biology, Ecology and Economic Importance Cassava Protection Workshop. CIAT, Cali, Colombia, 1977, pp. 155–159.Google Scholar
Owens, J. C., Ward, C. R. and Teetes, G. L. (1976) Current status of spider mites in corn and sorghum. Proceedings of the 31st Annual Corn and Sorghum Research Conference, pp. 38–64.Google Scholar
Rodriguez, J. G. (1978) The biology and ecology of the tetranychid mite complex in cassava in perspective. Proceedings of Cassava Protection Workshop. CIAT, Cali, Colombia, 7–12 November, 1977 Series C.-14, pp. 171–175.Google Scholar
Shukla, P. T. (1976) Preliminary report on the green spider mite, Mononychellus tanajoa (Bondar) resistance in Tanzania local cassava varieties. E. Afr. Agrie. J. 42, 55–59.Google Scholar
Van de Vrie, M., McMurtry, J. A. and Huffaker, C. B. (1972) Ecology of tetranychid mites and their natural enemies: A review III. Biology, ecology and pest status and host-plant relations of tetranychids. Hilgardia 41, 343–432.CrossRefGoogle Scholar
Zukova, V. P. (1963) Feeding mechanisms of the spider mite, Tetranychus telarius Trudy n.-1. in -ta zascity rastenij Uz. SSR 6, 13–18.Google Scholar