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Effect of different cultural-practices upon the major diseases of dark fire-cured tobacco in Malawi

Effect of different cultural-practices upon the major diseases of dark fire-cured tobacco in Malawi
Effect of different cultural-practices upon the major diseases of dark fire-cured tobacco in Malawi
Priming and discarding the bottom six leaves of dark fire-cured tobacco, increased the incidence of leaf damage caused by Alternaria longipes and Cercospora nicotianae. The stem rot Erwinia carotovora also caused more damage in primed than in unprimed tobacco. Leaving 18 leaves upon the plant as opposed to 15, decreased the incidence of A. longipes and C. nicotianae in tobacco from the top of the plant (leaves 13-15). At the recommended spacing of 0.9 0.9 m, applying a balanced fertilizer did not cause any increase in fungal damage to the leaf, but it did cause an increase in infection when applied at a spacing of 0.9 1.2 m. Decreasing plant populations and increased levels of applied fertilizer both increased the incidence of E. carotovora infection.
0967-0874
158-162
Tanton, T.W.
0f6a361e-394f-4cfc-94a6-5311442ae366
Preston, J.B.
00737e51-2169-4bc2-a048-4fab23eb93c4
Tanton, T.W.
0f6a361e-394f-4cfc-94a6-5311442ae366
Preston, J.B.
00737e51-2169-4bc2-a048-4fab23eb93c4

Tanton, T.W. and Preston, J.B. (1979) Effect of different cultural-practices upon the major diseases of dark fire-cured tobacco in Malawi. International Journal of Pest Management, 25 (2), 158-162. (doi:10.1080/09670877909411691).

Record type: Article

Abstract

Priming and discarding the bottom six leaves of dark fire-cured tobacco, increased the incidence of leaf damage caused by Alternaria longipes and Cercospora nicotianae. The stem rot Erwinia carotovora also caused more damage in primed than in unprimed tobacco. Leaving 18 leaves upon the plant as opposed to 15, decreased the incidence of A. longipes and C. nicotianae in tobacco from the top of the plant (leaves 13-15). At the recommended spacing of 0.9 0.9 m, applying a balanced fertilizer did not cause any increase in fungal damage to the leaf, but it did cause an increase in infection when applied at a spacing of 0.9 1.2 m. Decreasing plant populations and increased levels of applied fertilizer both increased the incidence of E. carotovora infection.

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Published date: June 1979

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Local EPrints ID: 75590
URI: http://eprints.soton.ac.uk/id/eprint/75590
ISSN: 0967-0874
PURE UUID: 6be205a1-1187-4016-99ee-6063331967e2

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:00

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Author: T.W. Tanton
Author: J.B. Preston

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