Infestación de Phyllocnistis citrella Stainton en Citrus reticulata Var. W. Murcott en Laredo, La Libertad
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Date
2018
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Universidad Nacional de Trujillo
Abstract
El presente trabajo de investigación se realizó en la localidad de Laredo provincia de Trujillo del departamento de La Libertad en un total de 1.12 ha correspondiente al cultivo de mandarina perteneciente a la empresa agrícola Frutos del valle S.A.C., cuyo objetivo fue describir la infestación por Phyllocnistis citrella Stainton. La variedad de mandarina en la que se trabajo fue W.Murcott con un patrón Cleopatra. Para determinar la infestación se evaluó el total de brotes afectados por la plaga del cual se tomó 62 plantas en forma de zig zag los cuales se evaluó las del tercio superior, tercio medio y tercio inferior de los arboles seleccionados. Se concluye que en la fase que presento la mayor infestación de Phyllocnistes citrella Stainton con un 66.13 % correspondió a la fase 5 cuando el fruto alcanza su 40% de crecimiento final el cual tiene un comportamiento directamente proporcional al incremento de temperatura. Respecto al grado de infestación tanto en larva como en huevo se presenta en un mayor grado en la fase 5 cuando el fruto alcanza su 40% de crecimiento final que cuenta con un grado de 2.55 y 1.71 respectivamente.
ABSTRACT The present research work was conducted in the town of Laredo province of Trujillo department of La Libertad in a total of 1.12 ha corresponding to the cultivation of mandarin belonging to the agricultural company Frutos del Valle SAC, whose objective was to describe the infestation by Phyllocnistis citrella Stainton. The mandarin variety in which he worked was W.Murcott with a cleopatra pattern. To determine the infestation, the total number of outbreaks affected by the pest was evaluated, from which 62 zigzag plants were taken, which were evaluated in the upper third, middle third and lower third of the selected trees. It is concluded that in the phase that presented the greatest infestation of Phylloccnistes citrella Stainton with 66.13% corresponded to phase 5 when the fruit reaches its 40% final growth which has a behavior directly proportional to the increase in temperature. Regarding the degree of infestation in both larva and egg occurs to a greater degree in phase 5 when the fruit reaches its 40% final growth that has a grade of 2.55 and 1.71 respectively.
ABSTRACT The present research work was conducted in the town of Laredo province of Trujillo department of La Libertad in a total of 1.12 ha corresponding to the cultivation of mandarin belonging to the agricultural company Frutos del Valle SAC, whose objective was to describe the infestation by Phyllocnistis citrella Stainton. The mandarin variety in which he worked was W.Murcott with a cleopatra pattern. To determine the infestation, the total number of outbreaks affected by the pest was evaluated, from which 62 zigzag plants were taken, which were evaluated in the upper third, middle third and lower third of the selected trees. It is concluded that in the phase that presented the greatest infestation of Phylloccnistes citrella Stainton with 66.13% corresponded to phase 5 when the fruit reaches its 40% final growth which has a behavior directly proportional to the increase in temperature. Regarding the degree of infestation in both larva and egg occurs to a greater degree in phase 5 when the fruit reaches its 40% final growth that has a grade of 2.55 and 1.71 respectively.
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Keywords
Mandarina, Phyllocnistis citrella Stainton, Etapa reproductiva (fases), Fruto