Boring beetles of the fruits of holm oaks, Oaks, chestnuts and hazelnuts: biology, damage and treatment

    He Ministry of environment and half Rural and marine edit the collection "them leaves promoters" that were born in the year 1907, of the need of do get to them farmers of form simple and practice it information on them technologies that should apply to their crops and to the breeding and care of their won. In this collection can find answers to activities various related with them different crops, breeding of cattle, machinery agricultural, fight against pests and diseases or conservation of food.