ESTIMATION OF AVOIDABLE LOSS DUE TO POWDERY MILDEW OF FENUGREEK (Trigonell foenum-graecum L.)

REKHA KUMAWAT¹*, K.S. SHEKHAWAT², R.P. GHASOLIA^3
1Department of Plant Pathology, S.K.N. College of Agriculture, Jobner (Sri Karan Narendra Agriculture University, Jobner, 303329, Jaipur, Rajasthan
²Department of Plant Pathology, S.K.N. College of Agriculture, Jobner (Sri Karan Narendra Agriculture University, Jobner, 303329, Jaipur, Rajasthan
³Department of Plant Pathology, S.K.N. College of Agriculture, Jobner (Sri Karan Narendra Agriculture University, Jobner, 303329, Jaipur, Rajasthan
* Corresponding Author : vimalcomputer22@gmail.com

Received : 21-08-2015     Accepted : 29-08-2015     Published : 21-11-2015
Volume : 7     Issue : 10       Pages : 727 - 729
Int J Agr Sci 7.10 (2015):727-729

Keywords : Fungicides, Dinocap, Powdery Mildew, Fenugreek.
Academic Editor : Mohammad Reza Rahdari, Jayanta Mistry, M. Sharma , Kannan C. S. Warrier, Heerendra Prasad, Ramachandra Laha
Conflict of Interest : None declared
Acknowledgements/Funding : None declared

The field experiment was conducted during Rabi 2012-13 and 2013-14 to estimate the avoidable loss due to powdery mildew of fenugreek caused by Erysiphe polygoni. Two sprays of dinocap (0.1%), starting from disease initiation were applied at an interval of 14 days significantly reduced powdery mildew severity by 72.04 and resulted in seed yield over inoculated check. Grain yield loss of 47.91 per cent can be avoided by applying fungicides. Single spray of dinocap (0.1%) either 7th or 14th or 21st day of inoculation was also significantly increased grain yield indicating avoidable loss of 9.82, 19.99 and 21.98 per cent, respectively.