Wheat: Striated mosaic virus detected in the southeast of Córdoba, Argentina
Wheat
Argentina
Published Oct 21, 2021
Tridge summary
As in several areas of the province of Buenos Aires, the wheat striated mosaic virus also attacks crops in the province of Córdoba, more precisely in the region of Marcos Juárez. "We analyzed groups of leaves of commercial varieties of wheat from nine samples sent by specialists from the Inta de Marco Juárez experimental station and all were positive for the striated mosaic virus," explained Vanina Alemandri, researcher at the Institute of Plant Pathology of Inta (Ipave).
Original content
The striated mosaic of wheat is transmitted by an eriophid mite (Aceria tosichella) of a very small size and that can also be spread by seeds and mechanically. "The management of this disease is so significant in how it spreads that it should focus on prevention, since once wheat is attacked by this virus, there are no biological or chemical curative measures that serve to deal with the problem," he explained. Lucrecia Couretot, specialist in plant pathology at the Inta Pergamino Agricultural Experiment Station. “The guachos play a fundamental role in epidemiology because they act as green bridges by being hosts of both the virus and the vector mites during the summer. It is necessary to evaluate what role oats and cover crops such as triticale and rye play, since several of them are registered as hosts of the virus and vector ”, Alemandri specified. Unlike other pathologies such as leaf spots and rusts that can be treated with fungicides, this virus cannot be chemically treated; ...
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