This dataset contains a long-term record of tree (Pinus sp.) defoliation by pine processionary moth (Thaumetopoea pityocampa) in a series of pine forest plots distributed throughout the Granada province (SE Spain). The plots are part of a monitoring network, aimed to study the phenology and intensity of defoliation by this lepidopteran, that occasionally causes severe defoliation in Mediterranean pine forests. The file includes descriptive features of the plots as well as annual records of defoliation and population size.

Data on 9 permanent observation pine stands are presented. Investigations are carried out since the 1992. Presented data: dendrometric parameters, condition, defoliation, tree ring width series, FAR/LAI, primary productivity, dead wood, meteorology, soil and needle chemistry, graound vegetation.

Data on 51 permanant observation pine stands established according to the methodology of Forest monitoring level I programme are presented. Investigations are carried out since the 1989. Presented data: dendrometric parameters, condition, defoliation, tree ring width series, FAR/LAI, primary productivity, dead wood, meteorology, soil chemistry.