International Journal of Chemical Studies
Vol. 6, Issue 1 (2018)
Evaluation of fungicides, biocontrol agents and plant extracts against early blight of potato caused by Alternaria solani
Author(s): Vikash Kumar Yadav, Vijay Kumar and Arghya Mani
Abstract: A study was conducted in the Department of Plant Pathology, College of Horticulture, Bharsar. During kharif season 2016 to control Alternaria solani (Ellis and Martin) Jones and Grout, causing early blight of potato. Ten different treatments were evaluated in vitro and in vivo condition. However, in vitro result revealed that the hexaconazole minimum radial growth (3.00mm) was observed at 3000 ppm concentration followed by mancozeb (3.16mm), Carbendazim (4.36 mm), T. harzianum (4.88mm) and neem oil (5.58mm). The maximum radial growth was observed in onion extract (5.75 mm). In vivo results revealed that hexaconazole (0.10%) was found most effective and recorded lowest disease intensity (12.61, 18.89 and 25.28%) with significantly increased yield (446.95 g/ plant) followed by mancozeb (0.25%) disease intensity (14.73, 21.70 and 27.95%) and yield (428.03 g/ plant), carbendazim (0.15%) disease intensity (17.13, 23.56 and 29.31%) and yield (416.97 g/ plant) at 45, 60 and 75 DAS. Results revealed that hexaconazole is highly effective against Alternaria solani in vitro and in vivo condition.
Pages: 1227-1230 | 433 Views 15 Downloads
How to cite this article:
Vikash Kumar Yadav, Vijay Kumar, Arghya Mani. Evaluation of fungicides, biocontrol agents and plant extracts against early blight of potato caused by Alternaria solani. Int J Chem Stud 2018;6(1):1227-1230.