TY  - BOOK
AU  - MALHI, Avtar Singh
TI  - Studies on canker and die back of pear in Punjab
U1  - T 634.139.4 M29S 
PY  - 1988///
CY  - Ludhiana
PB  - PAU
KW  - PEAR -- DISEASES AND PESTS
KW  - CANKER(PLANT DISEASE)
KW  - DIE -- BACK OF PEAR
KW  - FUNGUS
KW  - PEAR
KW  - PL PATHOLOGY
N2  - Disease severity index of canker and dieback of pear caused by Botryodiploda theobromae varied from 12.50 to 55.83% on variety I Patharnakh, 7.50 & 3850% on Bagughosa and 11.50% on Leconte. Disease severity index was maximum on trees of 18 or >18 years ol
ER  -