Vol. 10, Issue 11 (2021)

Author(s):
Arun Kumar, Dushyant Kumar, Joni Kumar, SK Singh, Krishan Pal, Yogandar Sain and Maneesh Kumar

Abstract:
The present investigation was carried on effect of different botanicals and other fungicides on Alternaria lini. The plant extracts of different botanicals were evaluated under in-vitro conditions. The poisoned food technique was used to evaluate the efficacy of botanicals at concentrations of 50, 100 and 150 ppm with three replications. Potato dextrose agar was used as medium and required quantity of each botanical extract was added separately to get a required concentration. The plant extracts inhibited the growth of the pathogen in the medium. The results of in-vitro studies revealed that Garlic bulb extract @ 150ppm significantly reduced the mycelial growth of Alternaria lini as 68.6 percent inhibition followed by Neem leaf extract @ 150 ppm and Ginger rhizome extract @ 150 ppm as 64.3% and 57.2% inhibition respectively. Among the six non-systemic fungicides evaluated at 1000 ppm, Mancozeb completely inhibited of the fungus growth (100%) and significantly superior over other treatments.