1. Black rot: ( Xanthomonas campestris ) Symptoms: * Most commonly seen in areas having a wet and warm climate. * Plants can be infected during any growth stage and the symptoms resemble nutritional deficiencies. * Infected seedlings turn into yellow in color, drop lower leaves and soon become die. * Leaves may be affected only one side of the seedling. * The infected tissue turns pale green-yellow and then turns brown and dies. * Affected areas are usually a wedge or V-shaped. * Disease progress the severely affected leaves may drop off. The veins in infected leaves, stems, and roots become black in color. Management: * Planting should be done on raised beds to facilitate drainage. * Raising non-host crops. * Affected plants should be removed and destroyed. 2. Leaf spot and Blight: (Alternaria brassicae and A.brassiciola) Symptoms: * One of the destructive diseases on seed crop. Older
An informative blog on home gardening, landscaping, and about the bonsai plants, and growing vegetables, fruit trees in organic farming.