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The occurrence and importance of okra mosaic virus in Nigerian weeds
Author(s) -
ATIRI G. I.
Publication year - 1984
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1984.tb05610.x
Subject(s) - abutilon , biology , weed , malvaceae , virus , inoculation , agronomy , veterinary medicine , horticulture , virology , medicine
SUMMARY The Nigerian National Horticultural Research Institute experimental and commercial farm has a long history of okra mosaic virus (OMV) disease. In an attempt to determine possible sources of inoculum, weeds growing within or around the vicinity of the farm were investigated. Several weeds showed virus or virus‐like disease symptoms and mechanical inoculation of crude sap from three malvaceous weeds (Abutilon hirtum, Sida acuta , and Malvastrum coromandelianum) and one solanaceous weed (Physalis angulata) induced symptoms of OMV on okra test seedlings; serological tests confirmed the presence of OMV. Beetle vectors caught both from weeds and from okra were infective when confined on healthy okra seedlings for 48 h. Increase in the abundance of beetle vectors was accompanied by an increase in the incidence of OMV disease. The implications of these findings in the epidemiology and control of OMV are discussed.