Pests and diseases of groundnuts in Malawi. II. Disorders of pods, kernels and seedlings.

Mercer, P.C. (1978) Pests and diseases of groundnuts in Malawi. II. Disorders of pods, kernels and seedlings. Oleagineux, 33 (3). pp. 119-122.

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Abstract

Diseases of pods, kernels and seeds and their prevention and control are described. Fungi isolated from pod rots and surface-sterilized kernels are listed. Fusarium oxysporum and F. solani f.sp. phaseoli were consistently isolated from "pale testa" type of pod rot, but only F. oxysporum was able to reproduce symptoms when inoculated on surface-sterilized detached pods and kernels. Infections were produced with difficulty in actively growing pods, although mature pods were attacked. Corticium rolfsii and Macrophomina phaseolina were sometimes observed on pods. Seeds that failed to germinate were mostly attacked by Aspergillus niger, A. flavus or Rhizopus sp. Crown rot due to A. niger is the only important seedling disease. From seedlings with damping-off Fusarium oxysporum, Thanatephorus cucumeris and Enterobacter aerogenes were isolated

Item Type: Article
Additional Information: SNNigam Collection
Author Affiliation: Forestry Commission, Alice Holt Lodge, Wrecclesham, Farnham, Surrey, UK.
Subjects: Plant Protection
Crop Improvement
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 21 Jul 2013 13:22
Last Modified: 21 Jul 2013 13:22
URI: http://eprints.icrisat.ac.in/id/eprint/11160

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