Population Dynamics of Onion Thrips Thrips tabaci Lindeman
Keywords:Allium cepa, Thrips tabaci, seasonal incidence, correlation, weather parameters, temperature, relative humidity, rainfall
A field experiment was conducted at Entomology farm, Faculty of Agriculture, SKUAST-K during rabi, 2019-20 to study the population dynamics of Thrips tabaci Lindeman in onion. The incidence of adults (31.00/ plant) and immatures (61.00/ plant) was observed from 9th standard meteorological week (SMW). It reached a peak on 22nd and 21st SMW and declined thereafter. The incidence revealed a positive correlation with temperature, rainfall and evening RH, and a negative one with morning RH; however, with nymphs it was a positive one with temperature and evening RH, and a negative one with rainfall and morning RH.
How to Cite
Anonymous. 2018. Horticultural Statistics at a Glance.
El-Sherif S I, Mahmoud H H. 2008. The population densities of two major insect pests of onion; the onion thrips (Thrips tabaci Lindeman) in fields and onion bulb fly (Eumerus amoenus Loew.) in stores. Bulletin of Faculty of Agriculture, Cairo University 59(4): 326-332.
Fournier F, Boivin G, Stewart R K. 1995. Effect of Thrips tabaci (Thysanoptera: Thripidae) on yellow onion yields and economic thresholds for its management. Journal of Economic Entomology 88: 1401-1407.
Gupta R P, Srivastava V K, Bhardwaj B S, Pandey U B. 1984. Chemical control of Thrips tabaci L. infesting onion crop. Journal of Entomological Research 8(2): 196-198.
Kannan H O, Mohamed M B 2001. Impact of irrigation frequency on population density of thrips, T. tabaci and yield of onion in E1 Sudan. Annals of Applied Biology 138: 129-132.
Khan I A, Shah R A, Said F. 2015. Distribution and population dynamics of Thrips tabaci (Thysanoptera: Thripidae) in selected districts of Khyber Pakhtunkhwa province Pakistan. Journal of Entomology and Zoology Studies 3(5): 153-157.
Lorine I, Torrer L, Gumaraes D R. 1986. Population fluctuations of thrips in an onion crop. Empresa Brass Pesqui Agropeca Brasilera 62: 4.
Murai T. 2000. Effect of temperature on development and reproduction of the onion thrips, Thrips tabaci Lindeman on pollen and honey solution. Applied Entomology and Zoology 35: 499–504.
Muthuram T, Balamurugan G, Suhasini V, Arivudainambi S. 2017. Evaluation of various sticky traps against Thrips tabaci Lindman (Thripidae: Thysanoptera) on onion. International Journal of Life Sciences Research 5(3): 102-104.
Reuda A, Shelton A M. 2003. Development of a bioassay system for monitoring susceptibility in Thrips tabaci. Pest Management 59(5): 553-558.
Stacey D A, Fellowes, M D E. 2002. Temperature and the development rates of thrips: Evidence for a constraint on local adaptation. European Journal of Entomology 99: 399– 404.
Sudhir K K. 2011. Pest complex in onion crop and its management with special reference to thrips, Thrips tabaci (Thysanoptera: Thripidae). Ph.D. Thesis, University of Agricultural Sciences, Bangalore, pp. 260-268.
Ullah F, Maraj-ul-Mulk, Farid A, Saeed M Q, Sattar S. 2010. Population dynamics and chemical control of onion thrips (Thrips tabaci Lindemann). Pakistan Journal of Zoology 42(4): 401-406.
Vinuthan K D, Rajashekharappa K, Meghana J, Revannavar R. 2018. Seasonal incidence of Thrips tabaci (Lind) (Thysanoptera: Thripidae) on onion, Allium cepa (L.). International Journal of Pure and Applied Bioscience 6(6): 993-996.