Vol. 11, Special Issue 4 (2022)

Author(s):
BP Tripathi, NK Mishra, BS Parihar and Richa Mishra

Abstract:
Rice blast diseases caused by Magnaporthe grisea is an economically important disease in Chhattisgarh that attacks at all stage of crop growth like nursery, booting and flowering stage, causing different types of disease symptoms as leaf blight, node blast and neck blast. Among the attacking stages neck blast is very serious stage that’s can affect 15-16% yield loss. Considering the importance of disease the experiment was carried out to assessment of IDM module with some systemic fungicides in rice through on field trials (OFT) against rice blast disease in Kabirdham district of Chhattisgarh during Kharif season 2014-15 and 2015-16 at different location of farmer’s field by supervision of Indira Gandhi Krishi Vishwavidyalaya, Krishi Vigyan Kendra, Kabirdham (Chhattisgarh). The efficacy of two systemic fungicides viz. Tricychalazole and Carbendazim were tested by application of different method at all stages of plant growth at recommended dose. The observation was recorded at all stage of plant growth on various parameters viz. disease incidence (%), severity (%) and yield with cost benefit ratio in two consecutive years. The use of Tricychlazole 75 WP @ 0.075% at nursery stage found economically more effective for blast with low disease incidence, severity as well as cost: befit ratio compare to Carbendazim.