TY - BOOK AU - Gupta,G.P. TI - Plant pathology SN - 8171417892 U1 - 632.3 PY - 2004/// CY - New Delhi PB - Discovery Publishing House KW - Pathology-Plants N1 - includes index; Disease causing organisms--Pathogenicity--Mechanical penetration--Chemical penetration--Dispersal of pathogens--Air and water disposal--Dispersal of pathogens by animals--Fungicides and pathogens--Nematocidal effect ER -