Vol. 4 (5) : September-October 2013 issue
Green Farming Vol. 4 (5) : 647-649 (September-October, 2013)
Evaluation of plant extracts and fungicides against Alternaria sesami inciting leaf spot of sesame
UMESH SAHU1*, K.P. VERMA2, S.M. ALI HUMAYUN3 and RITIKA THAKUR4
Department of Plant Pathology, Indira Gandhi Agriculture University, Raipur - 492 006 (Chattisgarh)
Designation : 1,4Rural Agriculture Extn. Officer *(umesh.sahu1986@gmail.com), 2Principal Scientist, 3P.G. Student
Subject : Plant Pathology, Nematology and Virology, Mushroom Cultivation
Paper No. : P-0889
Total Pages : 3
Received : 25 April 2013
Revised accepted : 20 September 2013
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Citation :
UMESH SAHU, K.P. VERMA, S.M. ALI HUMAYUN and RITIKA THAKUR. 2013. Evaluation of plant extracts and fungicides against Alternaria sesami inciting leaf spot of sesame. Green Farming Vol. 4 (5) : 647-649 ; September-October, 2013
ABSTRACT
Leaf extract of 18 locally available plant species and 9 fungicides both were evaluated in vitro and the same fungicides were sprayed in the field at 0.02% concentration to manage Alternaria leaf spot of sesame caused by Alternaria sesami. All the plant species showed fungitoxic properties at 20% concentration. The maximum inhibition in growth was recorded with the leaf extract of Ashwagandha (62.57%) followed by Datura (35.32%). In fungicides, Hexaveer at a concentration of 500 ppm and Hexaveer and Dhanteam at a concentration of 1000 ppm were the most effective in reducing the radial growth of A. sesami and the same Hexaveer followed by Dhanteam and Saaf showed 55.59, 50.35 and 38.65% inhibition in leaf spot severity in the field respectively in comparison to control.
Key words :
Alternaria sesami, Leaf spot, Fungicides, Plant extracts, Sesame indicum.
