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dc.contributor.advisorCastro Arteaga, Carlos
dc.contributor.authorMontoya Bravo, Kevin Adrián
dc.date.accessioned2022-11-15T16:06:18Z
dc.date.available2022-11-15T16:06:18Z
dc.date.issued2022
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/13241
dc.descriptionThe western thrips F. occidentalis is found on a wide host range, including numerous horticultural and ornamental greenhouse plants and various weeds. It is a specifically essential pest of watermelon, cucumber, bell pepper, eggplant and many ornamentals. Direct damage is due to feeding bites and laying effects. Feeding by adults and nymphs causes discoloration of affected tissue. Initially silvery and later brown plaques of variable length and abnormal but well-defined outline are found. The presence in these spots of small dark, inexpressive dots similar to deposits of fecal fluid allows them to be differentiated from those resulting from mites. When the bites occur in young tissues or growing organs, they cause deformations or distortions, and in floral organs they cause abortion or desiccation and fall. The information obtained was carried out through the technique of analysis, synthesis and summary, with the purpose of informing the reader about the chemical control for the management of thrips Frankliniella occidentalis Pergande, 1895 in watermelon crop Citrullus lanatus Thunb, 1916. From the above, it was determined that direct damage is due to the feeding of nymphs and adults, particularly on the lower part of the leaves, leaving a silvery appearance on the affected organs, which then appear necrotic. Indirect damage is the greatest and is due to the transmission of Tomato noticed wilt virus (TSWV), which affects watermelon, bell pepper, tomato, eggplant and bean. The mixture of two insecticides Spinetoram + Pyriproxyfen for the control of F. occidentalis showed quality results on the second and third days of application, reducing the population by 74 and 53%, respectively. A good result was obtained with the active ingredient Thiacloprid with a mortality of 26 thrips per plant.es_ES
dc.descriptionThe western thrips F. occidentalis is found on a wide host range, including numerous horticultural and ornamental greenhouse plants and various weeds. It is a specifically essential pest of watermelon, cucumber, bell pepper, eggplant and many ornamentals. Direct damage is due to feeding bites and laying effects. Feeding by adults and nymphs causes discoloration of affected tissue. Initially silvery and later brown plaques of variable length and abnormal but well-defined outline are found. The presence in these spots of small dark, inexpressive dots similar to deposits of fecal fluid allows them to be differentiated from those resulting from mites. When the bites occur in young tissues or growing organs, they cause deformations or distortions, and in floral organs they cause abortion or desiccation and fall. The information obtained was carried out through the technique of analysis, synthesis and summary, with the purpose of informing the reader about the chemical control for the management of thrips Frankliniella occidentalis Pergande, 1895 in watermelon crop Citrullus lanatus Thunb, 1916. From the above, it was determined that direct damage is due to the feeding of nymphs and adults, particularly on the lower part of the leaves, leaving a silvery appearance on the affected organs, which then appear necrotic. Indirect damage is the greatest and is due to the transmission of Tomato noticed wilt virus (TSWV), which affects watermelon, bell pepper, tomato, eggplant and bean. The mixture of two insecticides Spinetoram + Pyriproxyfen for the control of F. occidentalis showed quality results on the second and third days of application, reducing the population by 74 and 53%, respectively. A good result was obtained with the active ingredient Thiacloprid with a mortality of 26 thrips per plant.es_ES
dc.description.abstractEl trips occidental F. occidentalis se descubre en una amplia gama de hospederos, que incluye numerosas plantas hortícolas y ornamentales de invernadero y varias malas hierbas. Es una plaga específicamente esencial de la sandía, el pepino, el pimiento, la berenjena y muchas plantas ornamentales. Los daños directos se deben a las picaduras de alimentación y a los efectos de la puesta. La alimentación a través de adultos y ninfas provoca la decoloración del tejido afectado. Se encuentran placas inicialmente plateadas y más tarde marrones de longitud variable y contorno anormal pero bien definido. La presencia en estas manchas de pequeños puntos oscuros e inexpresivos similares a depósitos de líquido fecal permite diferenciarlas de las resultantes de los ácaros. Cuando las picaduras se producen en tejidos jóvenes u órganos en crecimiento, motivan deformaciones o distorsiones, y en los órganos florales motivan el aborto o la desecación y caída. La información obtenida fue efectuada mediante la técnica de análisis, síntesis y resumen, con la finalidad de que el lector conozca sobre el control químico para el manejo de trips Frankliniella occidentalis Pergande, 1895 en cultivo de sandía Citrullus lanatus Thunb, 1916. Por lo anteriormente detallado se determinó que Los daños directos se deben a la alimentación de las ninfas y los adultos, en particular en la parte inferior de las hojas, dejando un aspecto plateado en los órganos afectados, que luego aparecen necrosados. Los daños indirectos son los máximos y se deben a la transmisión del Tomato noticed wilt virus (TSWV), que afecta a sandía, pimiento, tomate, berenjena y frejol. La mezcla de dos insecticidas Spinetoram + Pyriproxyfen para el control de F. occidentalis mostró los resultados de calidad en el segundo y el tercer día de aplicación, disminuyendo la población en un 74 y un 53%, respectivamente. Se obtuvo un buen resultado con el ingrediente activo Tiacloprid con resultados de una mortalidad de 26 trips por planta.es_ES
dc.format.extent33 p.es_ES
dc.language.isoeses_ES
dc.publisherBABAHOYO: UTB, 2022es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Ecuador*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/*
dc.subjectControl químicoes_ES
dc.subjectTripses_ES
dc.subjectDañoses_ES
dc.subjectSandiaes_ES
dc.titleControl químico de trips Frankliniella occidentalis Pergande, 1895 en cultivo de sandía Citrullus lanatus Thunb, 1916es_ES
dc.typebachelorThesises_ES


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