Vol. 7, Issue 4 (2019)
Climatic factors influencing whiteflies infesting chilli
Author(s): NE Jayewar, DR Kadam and BB Bhosle
Abstract: During Kharif season of 2016-17 the field experiment was conducted at the Research Farm of Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani to study the influence of cliamatic factors on whitefly population on chilli cv., PBN C-1 in non-replicated design. The incidence of Whitefly Bemisia tabaci (Gennadius), initiated from 34th Standard Meteorological Week (2.72 whiteflies/plant) and then the population gradually increased and attained peak during 39th SMW (6.86 whiteflies/leaf) when the corresponding maximum and minimum temperature, morning and evening relative humidity, evaporation, bright sunshine hours and wind velocity were 30.2 and 21.7 0C, 91 and 73 per cent, 3.3 mm, 3.7 hrs and 4.7 kmph, respectively. Thereafter the population decreased up to 41st SMW and again population increased with second peak (5.12 whiteflies/leaf) during 42nd SMW, since then population showed decreasing trend up to 52nd SMW and thereafter it was disappeared up to end of season. As regard the correlation studies, whitefly had significant and positive correlation with minimum temperature (r=0.628*), morning relative humidity (r=0.576*) and evening relative humidity (r=0.606*), while the negatively significant correlation of whitefly was noticed with bright sunshine hours (r=-0.487*).
Pages: 2585-2588 | 238 Views 92 Downloads
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How to cite this article:
NE Jayewar, DR Kadam, BB Bhosle. Climatic factors influencing whiteflies infesting chilli. Int J Chem Stud 2019;7(4):2585-2588.
