A., M.T. , SINGH, K.K. , PANDEY, A.C. , SINGH, Y.P. and KANDPAL, B.K. 2021. CALIBRATION AND VALIDATION OF THERMAL-TIME BASED MODELS FOR FOREWARNING OF APHID PEST IN RAPESEED-MUSTARD CROP IN INDIA. MAUSAM. 72, 2 (Oct. 2021), 501–506. DOI:https://doi.org/10.54302/mausam.v72i2.606.