This program supports crop protection activities in several countries and regions by cooperating with national institutions in the planning , development and evaluation of education programs in crop protection at various levels .

This program supports crop protection activities in several countries and regions by cooperating with national institutions in the planning , development and evaluation of education programs in crop protection at various levels .

Johnston (1979) has called attention to the advantages of developing a centralized system for retrieval of plant protection (quarantine) information. Foremost among the advantages would be the economies realized by the reduction of the ...