Symptom Identification and Control Methods for Dendrobium Mosaic Disease

Distribution range:CultivationGreenhouses, commonly seen in Japan. Pathogen: Cucumber mosaic virus. Hosts: Dendrobium and Miltonia. Symptoms: Yellowish chlorotic patches and rings appear on the leaves, different from the mosaic disease caused by the nationalorchidleaf virus. Control: Controlling viral diseases mainly involves removing diseased plants, improving environmental hygiene, and disinfecting tools to prevent their spread. Currently, the internationally recognized better disinfectant solutions are: 1. 2% formalin and 2% sodium hydroxide aqueous solution (cannot be used once it turns green); 2. 164 g of anhydrous or 377 g of crystalline trisodium phosphate (Na3PO4) added to 1 L (1000 cc) of water. These can be used to disinfect tools, environments, etc. (Chen Xinqi, Ji Zhanhe)