Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-19T12:17:30.046Z Has data issue: false hasContentIssue false
  • English
  • Français

Aphid infestation on eight potato cultivars (Solanum tuberosum L.) in Kenya

Published online by Cambridge University Press:  19 September 2011

J. H. Nderitu  and
J. M. Mueke
J. H. Nderitu
Affiliation:
National Agricultural Laboratories, P.O. Box 14733, Nairobi, Kenya
J. M. Mueke
Affiliation:
National Agricultural Laboratories, P.O. Box 14733, Nairobi, Kenya
Get access

Abstract

Eight potato cultivars, viz, Anett, Desiree, Feldeslohn, Kerr's Pink, Kenya Baraka, Roslin Eburu, Roslin Gucha and Roslin Tana were tested in the field to compare their susceptibility to aphids. Despite the variation in results, Anett, Kerr's Pink and Desiree were identified as the most susceptible cultivars. The experiments revealed that Roslin Tana was a comparatively resistant cultivar useful for reference in further work.

There were no significant correlations between leaf area, glandular hairs and alate aphids with the number of apterae aphids on the eight potato cultivars. Resistance of Roslin Tana to aphids was, therefore, not due to the morphological characteristics of the cultivar, but probably to some physiological factor(s).

Résumé

Huit ‘cultivars’ de pommes de terre, à savoir, 1'‘Anett’, la ‘Désirée’, la ‘Feldeslohn,’ la ‘Kerr's Pink,’ la ‘Kenya Baraka,’ la ‘Roslin Eburu,’ la ‘Roslin Gucha,’ et la ‘Roslin Tana’ furent testeś sur le terrain pour comparer leurs prédispositions aux aphis. Malgré les différences en résultats, l'Anett, la Kerr's Pink et la Désirée ont été identifiées comme les ‘cultivars’ les plus prédisposés. Ces expériences ont révélé que la ‘Roslin Tana’ est relativement résistante, ce qui implique son utilité référentielle pour des travaux ultérieurs.

Il n'y avait pas de correlations importantes concernant l'aire de feuille, les poils glandulaires et les ‘aphis alates’ vis à vis le nombre d'‘apterae’ sur le huitième cultivar de pomme de terre. La résistance de la Roslin Tana aux aphis n'était, donc, pas due les caractères morphologiques des ‘cultivars’ mais probablement aux facteurs physiologiques.

Keywords

Resistancepotato cultivarsinfestationaphids
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 5 , October 1986 , pp. 677 - 682
Copyright
Copyright © ICIPE 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Adams, J. B. (1946) Aphid resistance in potatoes. Am. Potato J. 23, 1–22.CrossRefGoogle Scholar
Bintcliffe, E. J. B. (1981) Resistance to the aphid Myzus persicae (Sulz.) in potato cultivars. Proceedings of the Eucarpia/10 BC Working Group Meeting. Breeding for Resistance to Insect and Mites, Canterbury, 1980, pp. 29–34.Google Scholar
Gibson, R. W. (1971a) The resistance of three Solanum species to Myzus persicae Sulzer, Macrosiphum euphorbiae Thomas, and Aulacorthum solarti KLTB (Aphididae: Homoptera). Ann. appl Biol. 68, 245–251.CrossRefGoogle Scholar
Gibson, R. W. (1971b) Glandular hairs providing resistance to aphids in certain wild potato species. Ann. appl. Biol. 68, 113–119.CrossRefGoogle Scholar
Gibson, R. W. (1972) The distribution of aphids on potato leaves in relation to vein size. Entomologia exp. appl. 15, 213–223.CrossRefGoogle Scholar
Gibson, R. W. (1974a) The induction of toproll symptoms on potato plants by potato aphid, Macrosiphum euphorbiae Thomas. Ann. appl. Biol. 76, 19–26.CrossRefGoogle Scholar
Gibson, R. W. (1974b) Aphid trapping glandular hairs on hybrids of Solanum tuberosum and S. bertahultii. Potato Res. 17, 152–154.CrossRefGoogle Scholar
Gibson, R. W. (1976) Glandular hairs are a possible means of limiting aphid damage to the potato crop. Ann. appl. Biol. 82, 143–164.CrossRefGoogle Scholar
Gibson, R. W. and Turner, R. H. (1977) Insect trapping hairs on potato plants. PANS 22, 273–277.Google Scholar
Kennedy, J. S. and Stroyan, H. L. C. (1959) Biology of aphids. A. Rev. Ent. 4, 139–160.CrossRefGoogle Scholar
Robertson, D. G. (1975) Aphid Populations and Distribution. Ministry of Agriculture. ODM report pp. 18–19.Google Scholar
Shands, W. A. and Simpson, G. W. (1962) The relation of aphid abundance on potato plants to the specific gravity of the tubers. Am. Potato J. 39, 1–7.CrossRefGoogle Scholar
Taylor, C. E. (1962) The population dynamics of aphids infesting the potato plant with particular reference to the susceptibility of certain varieties to infestation. Am. Potato J. 5, 204–219.CrossRefGoogle Scholar