Nematodes and insects have been the only zoophytophagous groups that have been reported in the literature living on Nothofagus in Chile.
According to the area covered by Nothofagus and the type of plant that it represents, (apparent) the number of phytophagous insects living on this genus was estimated in 125. A total of 34 phytophagous species were reported as pests. The importance that the infestation to different parts of the plant, would have in tree performance is indicated.
The close relationship of sap suckers fauna living on Nothofagus in Australia, New Zealand and Chile is reported. Two genero and two species of phytophagous nematodes is indicated.