Home Garden and Organic Farming

Bacterial Wilt:  Symptoms:       - Wilting ( loss of water from leaves), Stunting( results in dwarfing and loss of vigor), yellowing of the foliage, and finally entire plant will break down.       -The vascular system becomes brown in color.       -Plants show wilting symptoms in afternoon times, will recover at nights but it will die soon.       -Lower leaves will drop first before wilting occurs.     Management:       Crop rotation with cruciferous vegetables such as cauliflower helps in reducing the spreading of disease.

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