Vol. 12, Issue 8 (2023)

Author(s):
Amritpal Singh and Dr. Vipul Kumar

Abstract:
The study focused on a disease observed on the leaves of certain exotic Indian mustard varieties. The research aimed to assess the effectiveness of nine different fungal toxicants, including mancozeb (0.05%), azoxystrobin (0.05%), propiconazole (0.05%), thiram (0.05%), tebuconazole (0.05%), copper oxychloride (0.05%), hexaconazole (0.05%), captan (0.05%), and trifloxystrobin (0.05%), as well as a control group. Two methods were used for evaluation: under in vitro conditions using the Poison Food Technique (PFT), and under in vivo conditions through foliar application. This assessment was conducted to determine their effectiveness in controlling Alternaria blight during the Rabi season of 2022-23. The findings from the in vivo study indicated that among the fungicide treatments, tebuconazole (0.05%) exhibited the strongest efficacy in controlling Alternaria Blight of Mustard under field conditions. Additionally, Propiconazole (0.05%) also displayed notable effectiveness in controlling the disease. Conversely, copper oxychloride (0.05%) and captan (0.05%) were found to be the least effective among the tested fungicides. In the in vitro study, tebuconazole (0.05%) demonstrated the highest inhibition percentage over the control, achieving a substantial inhibition rate of 98.12%. On the other hand, copper oxychloride (0.05%) exhibited the lowest inhibition percentage over the control, with a significantly lower rate of 9.5%.