MAIZE STREAK VIRUSES Meaning and
Definition
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Maize streak viruses (MSVs) are a group of plant viruses that infect and cause diseases in maize (corn) plants. They belong to the genus Mastrevirus and the family Geminiviridae. MSVs are considered one of the most important viral pathogens affecting maize crops worldwide.
MSVs are primarily transmitted by insects called leafhoppers, which feed on infected plants and carry the virus from one plant to another. Once inside the host plant, the virus replicates and spreads, causing deleterious effects on the maize plants' growth and development.
Symptoms of MSV infection include the appearance of streaks or stripes of discolored, necrotic tissue on the leaves, stunting of the plants, and reduction in yield. The severity of the symptoms varies depending on the virus strain and the stage of plant growth at the time of infection.
MSV infections can have a significant impact on maize production, causing substantial economic losses for farmers. Control measures for managing MSVs include the use of resistant maize varieties, insecticides to control the leafhopper vectors, and implementation of cultural practices such as crop rotation and removal of weed hosts that can harbor the virus.
Research efforts are ongoing to better understand the biology and epidemiology of MSVs and to develop effective strategies for their control.
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