This study presents a one-year investigation on the population dynamics of Glycaspis brimblecombei and their natural enemies in several hosts of Eucalyptus spp. in a farm in the municipality of Cuiaba, State of Mato Grosso, Brazil. Collection was performed by yellow sticky traps and on the leaves and stems of plants in five plots. The population fluctuation of the pest and its natural enemies were determined in correlation with meteorological parameters. The population fluctuation of Glycaspis brimblecombei presented greater occurrence in the dry season, in direct correlation with the maximum temperature and inversely proportional to the relative humidity, showing greater amount of individuals in August and September 2008. Psyllaephagus bliteus and other natural enemies founded in the 'Jardim' farm were not correlated with meteorological parameters. The species E. camaldulensis and the Clone MG1277 favored the population increase of G. brimblecombei, while the Clone GG100 was the least favorable host for the population increase of the pest.
biological control; synecology; red gum lerp psyllid