TY - BOOK AU - TAJINDER Singh TI - Studies on powdery mildew of grapes U1 - T 634.82 T11S PY - 1989/// CY - Ludhiana PB - PAU KW - GRAPES -- DISEASES AND PESTS KW - FUNGUS KW - GRAPES KW - PL. PATHOLOGY KW - POWDERY MILDEW DISEASES N2 - Optimum temperature for the development of grape powdery mildew was 25"C, whereas 35"C and above were unfavourable Conidia were capable of germinating at all RH levels ranging from 0 to 100%. Temperature was very important in the development of Unecator W ER -