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VOL. 6, ISSUE 6 (2021)
Effect of seasonal variation on the population dynamics of whitefly (Bemisia tabaci) on tobacco
Authors
Arpita Chatterjee
Abstract
The whitefly Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) is an important pest throughout the world for the field crops. It is the natural vector of geminivirus disease of different hosts. The Bemisia is a species complex having many biotypes and it has two extant cryptic species. In the present study, effect of seasonal variation on the population dynamics of whitefly was investigated on tobacco plants. Meteorological data were recorded regularly throughout the year, for a consecutive 3 years. Whitefly population per plant was recorded at experimental field of Basirhat District of West Bengal, India. A second trial was also carried out at field condition of North 24 Parganas District of West Bengal, India. For the maintenance of the insect, large wooden cages covered with galvanized insect-proof wire mesh were used and kept in the glasshouse. The result revealed that the whitefly population dynamics were influenced by many parameters, among which temperature, relative humidity, total rainfall, evaporation, number of rainy days, and bright sunny hours are important factors. In this study, it was observed that the minimum temperature has two peaks, one during the month of June, and the second peak during the month of September. The September peak is highest one. Observations on three years data indicated that the whitefly population was highest during August-October and it reached its maximum peak at September with a short peak during June in a year.
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Pages:282-286
How to cite this article:
Arpita Chatterjee "Effect of seasonal variation on the population dynamics of whitefly (<em>Bemisia tabaci</em>) on tobacco ". International Journal of Entomology Research, Vol 6, Issue 6, 2021, Pages 282-286
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