Coffea arabica
clima
temperatura
control cultural
Population dynamics
Coffea arabica
climate
temperature
cultural control
Dinâmica populacional
Coffea arabica
clima
temperatura
controle cultural}
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
In order to describe the population dynamics of Coffee Berry Borer, two one-hectare plots of coffee Coffea arabica var. Castillo (sun vs. shade) were chosen at the Naranjal Central Station, Chinchiná, Caldas, Colombia. From the formation of the first fruits, the population of CBB per tree and the flights of the adults were determined through captures in 70 alcohol traps; also, the movements of the insect were mapped monthly in each plot, in 30 randomly selected trees during four years. The results obtained were related to climatic events. A higher population density of CBB was found in shade-grown coffee during El Niño and neutral events with averages of 2,674 ± 213.9 and 1,675 ± 95 individuals of CBB per tree respectively, in contrast to 1,326 ± 105.2 and 516 ± 23 exposed to full sunlight for both climatic events. During La Niña, no significant differences were observed between the two production systems and low population levels were obtained. The flights of the CBB were higher in shade-grown coffee during El Niño periods, with captures of 23,645 ± 1,352 adults in contrast to La Niña periods with 997 ± 92 individuals. According to the maps, the movement of CBB within the two production systems occurred in an aggregated pattern according to Taylor's Power Law, with a linear regression coefficient (ß) greater than 1, according to the t-test statistic, at 5%.
PDF (Spanish)
FLIP
