TY  - BOOK
AU  - Dhaliwal, Lakhvir Kaur
TI  - Crop-weather-aphid interaction in raya (Brassica juncea L.) under ... environments
U1  - T 633.859.7 D38C 
PY  - 2002///
CY  - Ludhiana
PB  - P. A. U.
KW  - RAYA -- DISEASES AND PESTS
N2  - Crop-weather-aphid interactions in raya (Brassica juncea L.) under different hydro-thermal environments were studied to establish the empirical relationships between meteorological elements and aphid population.The correlation between aphid population and
ER  -