Management of Seed Associated Fungi and Alternaria Leaf Spot Disease of Black Mustard (Brassica Nigra L.) Using Botanicals

The efficacy of five native botanicals viz., neem, castor, akondo, basok and ata against the seed associated fungi in controlling leaf spot disease black mustard was evaluated. In blotter method, maximum reduction (85.91%) observed seeds treated with (1:1) while neem (1:1), (1:2) castor gave 83.52, 82.59 82.39%, respectively over control. Maximum germination (93%) akondo where supported 92, 92 90% germination, respectively. percent incidence (29.22%) diseases severity (24.67%) were recorded application at 28 days after sowing highest shoot length (16.09cm), root (4.69cm), vigor index (1842.56%) yield (33.70%) comparison to control net house. findings found as an effective botanical for ecofriendly management Alternaria mustard.
 Bangladesh J. Agril. Res. 46(4): 407-416, December 2021