Afghanistan - Plant pathology /part 1/ - Interim report to the government.

clima climat climate control de enfermedades cuarentena deficiencia de minerales disease control economic situation enfermedades de las plantas environmental factors escarda facteur du milieu factores ambientales fitopatologia fongicide fungicidas fungicides maladie des plantes mineral deficiencies plant diseases plant pathology plant protection equipment quarantaine quarantine rodents roedores rongeur weed control