Vol. 10, Special Issue 10 (2021)

Author(s):
Chenesh Patel, RM Srivastava, Deeksha MG, Roopam Kunwar, Jahanvi Tiwari and Khanika Pal

Abstract:
The present investigation on the seasonal dynamics of whitefly (Bemisia tabaci) on tomato (cv. Pant Tomato 3) was performed out at the Vegetable Research Centre, GBPUA&T, Pantnagar, during the Kharif crop seasons 2017-18 and 2018-19. Seasonal incidence revealed that whitefly first occurred during the 38^th (2017-18) and 39^th SMW (2018-19) standard week, peaking during the 48^th (2017-18) and 49^th SMW (2018-19). Maximum humidity and evaporation exhibited a positive association with the adult whitefly population, while temperature (maximum and minimum), rainfall, wind velocity, and sunshine hours exhibit a negative correlation. Taken together, the major weather parameters studied, caused 78.00 per cent variation in the whitefly population (R² value).