Fluctuación poblacional del insecto sogata, Tagosodes orizicolus empleando una trampa de luz y su relación con variables climáticas en Calabozo Estado Guárico, Venezuela
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J. Selva Andina Biosph.
Abstract
Se realizaron estudios de la población del insecto sogata, Tagosodes orizicolus, Muir empleando una trampa de luz ubicada en el Centro de Investigaciones Agrícolas del INIA en Calabozo estado Guárico, en los Bancos de San Pedro, Venezuela ubicado a 73 msnm, entre los años 2000 a 2010. En un área clasificada como bosque seco tropical. Los objetivos de este trabajo fueron: Estudiar la fluctuación poblacional del insecto T. orizicolus, y la relación de la población con seis factores climáticos, información aportada por la sección de Climatología del mismo Centro. El cultivo de arroz en Calabozo, presenta a la especie T. orizicolus como la plaga más abundante e importante durante la época de verano, alcanzando picos poblacionales durante los meses de marzo y abril en los años de estudio. Así mismo, se encontró significación estadística entre las poblaciones del insecto con la temperatura media (p≤ 0.0001), no resultando significativa la relación con las temperaturas mínima, máxima, humedad, evaporación y precipitación. Se describe la metodología y forma de evaluar al insecto con una trampa de luz en el arroz.
Population studies of planthopper insect, Tagosodes orizicolus Muir, were performed using a light trap located in the Centre of Agricultural Research INIA Calabozo in Bancos de San Pedro, Guárico state, Venezuela, located at 73 masl from 2000 to 2010. In an area classified as Dry Tropical Forest. The objectives of this study were to study the population dynamics of the insect T. orizicolus and the ratio of the population with six climatic factors, information provided by the Climatology section of the same center. Rice cultivation in Calabozo presents the species T. orizicolus the most abundant and important pest during the summer, reaching population peaks during the months of March and April in the years of study. Also, statistical significance between insect populations with the average temperature (p ≤ 0.0001) was found, no significant relationship resulting with low temperatures, high, humidity, evaporation and precipitation. We also described the methodology and forms to evaluate the sogata insect using a light trap in rice.
Population studies of planthopper insect, Tagosodes orizicolus Muir, were performed using a light trap located in the Centre of Agricultural Research INIA Calabozo in Bancos de San Pedro, Guárico state, Venezuela, located at 73 masl from 2000 to 2010. In an area classified as Dry Tropical Forest. The objectives of this study were to study the population dynamics of the insect T. orizicolus and the ratio of the population with six climatic factors, information provided by the Climatology section of the same center. Rice cultivation in Calabozo presents the species T. orizicolus the most abundant and important pest during the summer, reaching population peaks during the months of March and April in the years of study. Also, statistical significance between insect populations with the average temperature (p ≤ 0.0001) was found, no significant relationship resulting with low temperatures, high, humidity, evaporation and precipitation. We also described the methodology and forms to evaluate the sogata insect using a light trap in rice.
Description
Vol. 5, No. 2