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Acariosis del maíz en Navarra. Ecología de Tetranychus turkestani Ugarov y Nikolski

Authors: Moraza-Zorrilla, M.L. (Maria Lourdes); Biurrun, R. (Ricardo); Iraola-Calvo, V. M. (V. M.);

Acariosis del maíz en Navarra. Ecología de Tetranychus turkestani Ugarov y Nikolski

Abstract

Se ha estudiado el comportamiento ecológico de las poblaciones de Tetranychus turkestani Ugarov y Nikolski, tetraniquido fitófago que ataca al maíz en Navarra. Esta especie, que puede pasar el invierno en forma de hembra diapausica, comienza su actividad sobre la vegetación espontánea del borde de las parcelas de maíz a partir del mes de Marzo (temperatura media 13 °C). Desde esta vegetación, se desplaza a las hojas inferiores de las plantas de maíz del borde de la parcela a partir del mes de Junio, dependiendo del clima y de la existencia o no de vegetación de ribazo. A partir de ese momento, los ácaros siguen una doble dirección: hacia arriba, colonizando la planta y hacia los lados, colonizando las plantas vecinas. El estado fisiológico de la planta de maíz incide acusadamente en esta colonización. La semana previa y durante el estado de floración masculina, el crecimiento de T. turkestani se ve favorecido, produciéndose la colonización total de la planta por un lado, y de la parcela por otro. Las poblaciones de tetraníquidos se ven afectadas por: el estado fisiológico del maíz, el clima (temperaturas elevadas y humedad relativa baja les favorecen) y los enemigos naturales (especialmente los ácaros fitoseidos) que controlan sus poblaciones. Ecological populations behavior of Tetranychus turkestani UGAROV Y NIKOLSKI, phytophagous spider mite, infesting corn in Navarra has been studied. This species, which can spend winter time as diapausic female, starts its activity on spontaneous vegetation of the corn plots borders at the beginning of March (mean temperature 13 °C). From here on, and beginning with June, mites move to corn basal leaves of the plots border depending of weather and existence of slope vegetation. Beginning with this moment, mites follow a double direction: upward colonizing corn plants and toward every direction colonizing neighboring corn plants. Corn plants physiological state falls this colonization. During the masculine flowering state and previous week to this time, T. turkestani population increase is favored and total plant and total plot colonization occur. Spider mite populations are affected by: corn physiological state, clime (high temperatures and relative low humidity favour the mite) and natural enemies (predaceous phytoseiid mites over all) which control spider mite populations.

Country
Spain
Related Organizations
Keywords

:Ciencias de la vida::Zoología [Materias Investigacion], Materias Investigacion::Ciencias medioambientales::Ecosistemas y Ecología, Corn, Spider mites, Colonization dynamic, Population dynamic, Navarra, Acariosis, :Ciencias medioambientales::Ecosistemas y Ecología [Materias Investigacion], Dinámica de colonización, Materias Investigacion::Ciencias de la vida::Zoología, Maíz, Tetranychus turkestani, Dinámica de poblaciones

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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