ANTICUERPO CONJUGADO, ACIDOVORAX AVENAE SUBSP. CATTLEYAE, AACAT PARA 500 ENSAYOS, 1 TUBO_0.1ML

Bacterial brown spot of orchid is a destructive disease caused by Acidovorax avenae subsp. cattleyae (2). Other host genera for this bacterium are Cattleya, Cypripedium, Dendrobium, Oncidium, and Vanda. The first symptoms on orchids are soft, water-soaked lesions which eventually turn brown or black. The disease may cause death of seedlings in community pots. Infection on older plants may occur anywhere on the leaf, and can kill the plant if it reaches the growing point.

Diseased areas always show a considerable amount of exudate, which contains infectious bacteria that may be carried to other plants by splashing water. On Cattleya-type orchids the disease appears on the leaves as sunken, black, water-soaked spots.