Ocurrencia estacional de los insectos plaga y sus enemigos naturales en Schinus molle L en La Molina
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Authors
Choque Vizcarra, Henry Percy
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Abstract
Se realizaron monitoreos en insectos plagas y sus controladores biológicos del árbol del Schinus molle (molle serrano), y se encontraron; Calophya schini, Aleurodicus juleikae, Empoasca Kraemeri y Hemiberlesia lataniae como plagas importantes. Coccus hesperidium y Pseudococcus longispinus como plagas secundarias en la UNALM. Las evaluaciones se realizaron en 5 sectores de la UNALM, y por cada sector se evaluó 5 árboles al azar, y así se evaluaron 25 árboles semanalmente. Para cada árbol se consideró sus puntos cardinales (Norte, Sur, Este y Oeste) y se dividió en 2 estratos (debajo de la mitad del árbol como estrato inferior, y encima de la mitad del árbol como estrato superior). También se tomaron las variables hidrométricas (la humedad relativa y temperatura media) desde el 3 de abril hasta el 27 de junio del 2019. En la zona exterior e inferior hubo diferencias significativas en Calophya schini, Aleurodicus juleikae, Empoasca Kraemeri y Hemiberlesia lataniae. En ninguna de los insectos mencionados hubo diferencias significativas en sus puntos cardinales (esto fue entre el 3 de enero al 27 de junio del 2019); en cambio, en lo que respecta a los sectores si hubo diferencias significativas entre estos, estas diferencias sectoriales fueron en Calophya schini, Aleurodicus juleikae, y Empoasca Kraemeri. En la ocurrencia estacional de las plagas del molle serrano, en total se determinó que el Calophya schini es el más abundante con un total de 54085 individuos (adultos e inmaduros) registrados en 26 evaluaciones, seguido del Aleurodicus juleikae con un total de 981 individuos (adultos e inmaduros), luego Empoasca kraemeri con un total de 764 individuos, Hemiberlesia lataniae con un total de 830 individuos, Coccus hesperidium con un total de 194 individuos y Pseudococcus longispinus con 115 individuos.
Monitoring was conducted on pest insects and their biological controllers of the Schinus molle (Peruvian pepper tree), and the following were found: Calophya schini, Aleurodicus juleikae, Empoasca kraemeri, and Hemiberlesia lataniae as important pests. Coccus hesperidium and Pseudococcus longispinus were identified as secondary pests at UNALM (National Agrarian University La Molina). The evaluations were carried out in 5 sectors of UNALM, with 5 randomly selected trees evaluated per sector, totaling 25 trees assessed weekly. Each tree was evaluated for cardinal points (North, South, East, and West) and divided into 2 strata (below and above the middle of the tree). Hydrometric variables (relative humidity and average temperature) were also recorded from April 3 to June 27, 2019. Significant differences were observed in the outer and lower zones for Calophya schini, Aleurodicus juleikae, Empoasca kraemeri, and Hemiberlesia lataniae. There were no significant differences observed in cardinal points for any of the mentioned insects from January 3 to June 27, 2019; however, significant differences were found among sectors for Calophya schini, Aleurodicus juleikae, and Empoasca kraemeri. Regarding the seasonal occurrence of pests on Schinus molle, it was determined that Calophya schini was the most abundant with a total of 54,085 individuals (adults and immatures) recorded in 26 evaluations, followed by Aleurodicus juleikae with a total of 981 individuals (adults and immatures), Empoasca kraemeri with 764 individuals, Hemiberlesia lataniae with 830 individuals, Coccus hesperidium with 194 individuals, and Pseudococcus longispinus with 115 individuals.
Monitoring was conducted on pest insects and their biological controllers of the Schinus molle (Peruvian pepper tree), and the following were found: Calophya schini, Aleurodicus juleikae, Empoasca kraemeri, and Hemiberlesia lataniae as important pests. Coccus hesperidium and Pseudococcus longispinus were identified as secondary pests at UNALM (National Agrarian University La Molina). The evaluations were carried out in 5 sectors of UNALM, with 5 randomly selected trees evaluated per sector, totaling 25 trees assessed weekly. Each tree was evaluated for cardinal points (North, South, East, and West) and divided into 2 strata (below and above the middle of the tree). Hydrometric variables (relative humidity and average temperature) were also recorded from April 3 to June 27, 2019. Significant differences were observed in the outer and lower zones for Calophya schini, Aleurodicus juleikae, Empoasca kraemeri, and Hemiberlesia lataniae. There were no significant differences observed in cardinal points for any of the mentioned insects from January 3 to June 27, 2019; however, significant differences were found among sectors for Calophya schini, Aleurodicus juleikae, and Empoasca kraemeri. Regarding the seasonal occurrence of pests on Schinus molle, it was determined that Calophya schini was the most abundant with a total of 54,085 individuals (adults and immatures) recorded in 26 evaluations, followed by Aleurodicus juleikae with a total of 981 individuals (adults and immatures), Empoasca kraemeri with 764 individuals, Hemiberlesia lataniae with 830 individuals, Coccus hesperidium with 194 individuals, and Pseudococcus longispinus with 115 individuals.
Description
Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento
Académico de Entomología
Keywords
Fluctuación
Citation
Date
2025
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