Author(s):

Anandeeswari D and Dr. D John Christopher

Abstract: Sheath rot caused by Sarocladium oryzae to be a major constraints in rice production. Since the existing chemical control measures being costly and may favour development of resistance in pathogens. The potential alternative methods have been explored in the present studies. Inhibition of radial growth varied significantly with different botanicals and animal products with their concentrations. Seven different plant products weeds such as Neem (Azadirachta indica), Garlic (Allium sativam), Ginger (Zingiberofficinale), Mehanthi (Lawsonia inermis), Kizhanelli (Phyllanthus niroori), Turmeric (Curcuma longa) and Notchi (Vitex negundo) were tested against S. oryzae was carried out by Poisoned food technique, Paper disc and Agar well method. Among the extracts, Mehanthi at the highest concentration (20%) was found to be minimum mycelial growth was recorded 11.10 mm and maximum reduction was recorded 42.17 and 39.45 mm. Seven different animal products such as Cow dung, Goat dung, Buffalo dung, Sheep dung, Hen litter, Cow urine and Buffalo urine were tested against S. oryzae was carried out by Poisoned food technique, Paper disc and Agar well method. Among the extracts, Cow dung and Hen litter at the highest concentration (20%) was found to be minimum mycelial growth was recorded 11.13 mm and maximum reduction was recorded 39.79 and 40.86 mm.

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