El presente trabajo analiza ciertos conceptos referentes a la situación nutricional de Costa Rica y con menos énfasis del resto de Centro América, con base en la información disponible. Se ha tratado de describir los ...

This study deals with the biology of Doru taeniatum, (Forficuüdae), particulary the habitat, feeding, reproduction, maternal care, and nymphal stages. The density of adults is higher in the older corn plants. The earwings ...

A survey was conducted in 30 fields located at three different altitudes in Cartago, Costa Rica’s main potato producing area. Twenty plants were sampled per farm, for a total of 600 samples with 200 samples per altitude. ...