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Field evaluation of foliar and soil insecticides for the control of Aphis gossypii Glover (Homoptera: Aphididae) on potatoes 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
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Abstract

Field evaluation showed oxydemeton methyl 25% E.C. at 0.6 kg a.i./ha and dimethoate 40% E.C. at 0.74 kg a.i./ha to be more effective than cypermethrin 40% E.C. at 0.25 kg a.i./ha, decamethrin 2.5% E.C. at 0.03 kg a.i./ha, endosulphan 35% E.C. at 0.8 kg a.i./ha and profenofos 50% E.C. at 0.74 a.i./ha in the control of apterae on potatoes. Disulfoton 10G at 1.6 k0g a.i./ha and carbofuran 10G at 5.2 kg a.i./ha were superior to oxamyl 10G at 5.2 kg a.i./ha and terbufos 5G at 2.6 kg a.i./ha applied in the furrow at planting for the control of aphids. Although these insecticides gave good control of apterae, the alate population in the treated plots varied from significant reduction to no reduction. All the insecticides tested did not significantly increase potato yield, although mean yields were increased.

Résumé

Les expériences entreprises sur le terrain ont montré que l'‘oxydemeton methyl 25% E.C. á 0.6 kg m.a./ha’ et le ‘dimethoate 40% E.C. á 0.74 kg m.a./ha’ sont plus efficaces que le ‘cypermethrin 40% E.C. á 0.25 kg m.a./ha’, ‘decamethrin 2.5% E.C. á 0.03 kg m.a./ha’, ‘endosulphan 35% E.C. á 0.8 kg m.a./ha’ et ‘profenofos 50% E.C. á 0.74kg m.a./ha’ pour la suppression des ‘apterae’ sur les pommes de terre. Le ‘disulfoton 10G á 1.6kg m.a./ha’ et le ‘carbofuran 10G á 5.2kg m.a./ha’ étaient meilleurs que l'‘oxamyl 10G á 5.2kg m.a./ha’ et le ‘terbufos 5G á kg m.a./ha’ dans le sillon au lemps desemence pour la suppression des aphis. Mênce si ces insecticides ont fait une bonne suppression des ‘apterae’, la population ‘alate’ dans les ceins traites a varié d'une réduction significative á une réduction nulle. Aucun de ces insecticides á accru significativement la production des pommes de terre.

Keywords

Apteraealatesfoliar sprayssoil insecticides
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 5 , October 1986 , pp. 667 - 675
Copyright
Copyright © ICIPE 1986

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References

REFERENCES

Bacon, G. O. (1960) Systemic insecticides applied to cut seed pieces and to soil at planting time to control aphids. J. econ. Ent. 53, 835–839.CrossRefGoogle Scholar
Bacon, G. O., Burton, V. E., McLean, D. L., James, R. H., Riley, W. D., Baghott, K. G. and Kinsey, M. G. (1976) Control of the green peach aphid and its effect on the incidence of potato leaf roll virus. J. econ. Ent. 69, 410–414.CrossRefGoogle Scholar
Burt, P. E., Broadbent, L. and Heathcote, G. D. (1960) The use of soil insecticides to control potato aphids and virus diseases. Ann. appl. Biol. 48, 580–590.CrossRefGoogle Scholar
Cancellado, R. E. and Radcliffe, E. B. (1979) Action thresholds for green peach aphid on potatoes in Minnesota. J. econ. Ent. 72, 606–609.CrossRefGoogle Scholar
Garden, P. W. and Golightly, W. H. (1977) Potato aphids. Ministry of Agriculture, Fisheries and Food, England. Advisory Leafllet Vol. 575.Google Scholar
Gibson, R. W., Whitehead, D., Austin, D. J. and Sinkins, J. (1976) Prevention of toproll by aphicides and the effect on leaf area and photosynthesis. Ann. appl. Biol. 82, 151–153.CrossRefGoogle Scholar
Palgrave, J. A. C. (1972) Aphids on potatoes. Rhodesia agric. J. 69, 125–126.Google Scholar
Peterson, A. G. (1963) Increases on peach aphid following the use of some insecticides on potatoes. Am. Potato J. 40, 121–129.CrossRefGoogle Scholar
Pond, D. D. (1967) Field evaluation of insecticides for the control of aphids on potatoes. J. econ. Ent. 60, 1203–1205.CrossRefGoogle Scholar
Powell, D. M. and Mondor, T. W. (1973) Control of the green peach aphid and suppression of leaf roll on potatoes by systemic soil insecticides and multiple foliar sprays. J. econ. Ent. 66, 170–177.CrossRefGoogle ScholarPubMed
Powell, D. M. (1980) Control of the green peach aphid on potatoes with soil systemic insecticides; pre-plant broadcast and planting time furrow applications, 1973–1977. J. econ. Ent. 73, 839–843.CrossRefGoogle Scholar
Simpson, G. W. and Shands, W. A. (1963) Systemic insecticides and leaf roll spread in 1961. Main farmg Res. 11, 19–21.Google Scholar
Singh, G. and Misra, P. N. (1978) Effects of some insecticides on aphid populations and yield of potato crop. Indian J. agric. Sci. 48, 12–16.Google Scholar
Till, B. B. (1971) The effect of insecticides on the spread of potato leaf roll virus in seed potato fields at Pukekole. N.Z. J. agric. Res. 14, 458–468.CrossRefGoogle Scholar