Epidemiology of Maize Streak Disease in Kenya

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Date
1996
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Kenya Agricultural Research Institute
Abstract
Maize streak was observed in 17 of 19 districts of Kenya surveyed in 1994-1995. The highest disease incidence in the farmers' maize (Zea mays L.) fields (53.5%) was recorded in the Kiambu district in the Central province. Maize streak geminivirus (MSV) was identified from maize, wheat (Triticum aestivum) , finger millet (Eleusine coracana) and various grass species including Coix lacryma-jobi, Dactyloctenium aegyptium, Digitaria velutina, Eleusine indica, Eragrostis macilenta, E. tenuifolia, Panicum maximum, P. trichocladum, Setaria homonyma, S. verticillata and Urocloa brachyura. Among 11 grass species found naturally infected with MSV, D. velutina was the most abundantly diseased. However, P. maximum with streak symptoms was seen in more locations, but in less numbers .
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