International Journal of Plant Protection

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Seasonal Incidence of Thrips (Thrips tabaci, Lind.) on Onion in Khandesh Region of Maharashtra


Affiliations
1 Department of Agricultural Entomology, College of Agriculture, Dhule (M.S.), India
     

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Seasonal incidence of thrips on onion was evaluated in field trials at the instructional farm of Agricultural Entomology Section, College of Agriculture, Dhule during Kharif season of 2015-16. The data on average number of thrips per plant under field conditions along with weather parameters viz., temperature (maximum and minimum), relative humidity (morning and evening) and rainfall are correlated. The infestation of thrips was first observed at 2nd week after transplanting in 38th SMW, with population of 1.6 thrips/plant. The population of thrips above 5 thrips/plant was noticed from 4th week of September i.e. 40th SMW onwards. The peak incidence of 19.1 thrips/plant was recorded in 46th SMW i.e. second week of November. The correlation of thrips with morning humidity (-0.7324)**, evening humidity (-0.7123)** and rainfall(-0.5820)* are negatively significant effect at 5 per cent and 1 per cent level with thrips.

Keywords

Onion, Thrips, Seasonal Incidence.
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  • Dharmasena, C.M.D. (1998). Present status of managing leaf curl complex in the north central province of Sri-lanka. Trop. Agric. Res. & Extn.,1(2): 154-158.

  • Fournier, F., Boivin, G. and Stewart, R.K. (1995). Effect of Thrips tabaci on yellow onion yields and economics thresholds for its management. J. Econ. Entomol., 88: 1401-1407.

  • Gareth, G., Laurence, T. and Brian, S. (2002).Onions- A global benefit to health. Phytotherapy Res., 16: 603-615.

  • Gill, C.K., Bhullar, Manmeet, Dhooria, M.S. and Brar, P.S. (2006). Incidence of Thripstabaci (Lind.) and Aceriatulipae (Keifer) on garlic in Punjab. J. Insect Sci., 19(1): 88-90.

  • Nault, B.A. and Shelton, A.M. (2010). Impact of insecticide efficacy on developing action thresholds for pest management: A case study of onion thrips on onion. J. Econ. Entomol.,103: 1315-1326.

  • Neergude, Mallinath, Biradar, A.P., Veerendra, A.C. and Sathisha (2014). Seasonal abundance of onion thrips, T. tabaci Lind. and their natural enemies under dry land conditions. IJAPBC, 3 (1) : 33-36.

  • Robinowitch, H.D. and Currah, L. (2002).Allium crop science: Recent advances. CAB International Wallington, UK. pp.-551.

  • Shitole, D.M., Shankar, G. and Mithyantha, M.S. (2002). Evaluation of certain new insecticides against onion thrips (Thrips tabaci Lind.). Pestology, 26(2): 49-51.


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  • Seasonal Incidence of Thrips (Thrips tabaci, Lind.) on Onion in Khandesh Region of Maharashtra

Abstract Views: 210  |  PDF Views: 0

Authors

D. P. Birhade
Department of Agricultural Entomology, College of Agriculture, Dhule (M.S.), India
G. B. Kabre
Department of Agricultural Entomology, College of Agriculture, Dhule (M.S.), India
S. S. Khating
Department of Agricultural Entomology, College of Agriculture, Dhule (M.S.), India

Abstract


Seasonal incidence of thrips on onion was evaluated in field trials at the instructional farm of Agricultural Entomology Section, College of Agriculture, Dhule during Kharif season of 2015-16. The data on average number of thrips per plant under field conditions along with weather parameters viz., temperature (maximum and minimum), relative humidity (morning and evening) and rainfall are correlated. The infestation of thrips was first observed at 2nd week after transplanting in 38th SMW, with population of 1.6 thrips/plant. The population of thrips above 5 thrips/plant was noticed from 4th week of September i.e. 40th SMW onwards. The peak incidence of 19.1 thrips/plant was recorded in 46th SMW i.e. second week of November. The correlation of thrips with morning humidity (-0.7324)**, evening humidity (-0.7123)** and rainfall(-0.5820)* are negatively significant effect at 5 per cent and 1 per cent level with thrips.

Keywords


Onion, Thrips, Seasonal Incidence.

References