Management of Bacterial Diseases in Mushrooms
1. Bacterial Blotch (Pseudomonas tolaasii) Symptoms: Yellow-brown, water-soaked lesions or blotches on mushroom caps, especially on Agaricus bisporus (button mushrooms). Lesions often become darker, giving the mushroom a discolored, slimy appearance. Affected mushrooms may have reduced market value due to blemishes. Management: Sanitation: Disinfect surfaces, tools, and growing areas regularly. Proper Ventilation: Maintain good air circulation and reduce humidity to below 85% to inhibit bacterial growth. Use of Bactericides: Some growers apply bactericides like chlorine dioxide or hydrogen peroxide at safe concentrations to control bacterial blotch. Avoid Overwatering: Keep water application to a minimum, and avoid splashing water on the mushrooms. pH Adjustment: Maintain the casing layer pH above 7.0 to make it less conducive for P. tolaasii. 2. Mummy Disease (Pseudomonas agarici) ...