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Windborne spread of ergot disease (Claviceps africana) in sorghum A-lines in Zimbabwe

OAR@ICRISAT

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Relation http://oar.icrisat.org/1483/
http://dx.doi.org/10.1111/j.1365-3059.1993.tb01514.x
 
Title Windborne spread of ergot disease (Claviceps africana) in sorghum A-lines in Zimbabwe
 
Creator Frederickson, D E
Mantle, P G
Milliano, W A J De
 
Subject Sorghum
 
Description In field trials in Zimbabwe, C. africana spread rapidly through replicated plots of male-sterile sorghum A-lines, from a group of centrally situated, inoculated plants. Prominent secondary conidiation by the pathogen on the surface of exuded honeydew provided airborne spores which were trapped in a Burkard continuous spore trap and showed diurnal peaks in air close to the primary inoculum source. From the rate and pattern of disease spread it is concluded that the characteristic secondary conidia of C. africana were the principal disease agents within the experimental area, and that ergot spread by windborne secondary conidia has significant epidemiological and economic implications for sorghum hybrid breeding in southern Africa.
 
Date 1993
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/1483/1/Plant_Pathology42%283%29368-377_1993.pdf
Frederickson, D E and Mantle, P G and Milliano, W A J De (1993) Windborne spread of ergot disease (Claviceps africana) in sorghum A-lines in Zimbabwe. Plant Pathology, 42 (3). pp. 368-377.