Fungal problems are best prevented by avoiding over-watering; fungicide might be needed to treat serious problems. Acidovorax anthurii sp. Bacterial leaf spot/ blight (Acidovorax anthurii) is a bacterial pathogen of anthurium. If you notice the leaf veins on your anthurium yellowing and then the entire leaf changes to a brownish-bronze color and although the plant is receiving enough water it’s wilting, you have a problem with bacterial wilt. Anthracnose is caused by the fungus Colletotrichum gloeosporioides.It is of minor significance to the anthurium industry in the Caribbean. The causal agent of bacterial leaf spot of English ivy and other Araliaceae species is X. hortorum pv. Black rot on ornamental kale is caused by X. campestris. is reported from Guadeloupe and Martinique as a new pathogen of the leaves and spathe of anthurium. Common Problems with Anthurium insigne. Notification list. The bacterium caused a vascular disease characterized by black necrotic spots surrounded by greasy margins and a bright chlorotic halo on leaves or a violet halo on the spathe. If the leaf margins of your Anthurium plant turn brown, the plant is receiving too much sunlight. How to Get Rid of a Xanthomonas Leaf Spot on a Dieffenbachia. Caused by a Pseudomonas sp. Int J Syst Evol Microbiol 2000; 50:425-426 They are pretty pest resistant otherwise, but let’s go over what you can do if you see any of these three issues on your plant. in the French West Indies P. Prior. BACTERIAL DISEASES OF ANTHURIUM, DIEFFENBACHIA, PHILODENDRON, AND SYNGONIUM Species of Anthurium, Dieffenbachia, Philodendron, and Syngonium are popular foliage plants cultivated in interiorscapes of homes, offices, and malls throughout the world. Notification that new names and new combinations have appeared in volume 50, part 1 of the IJSEM. Pest & Diseases of Anthurium in the Caribbean. Fungal and bacterial diseases, including bacterial blight, root rot, stem rot, and fungal or bacterial leaf spots, are the biggest problem for anthuriums. If new flowers appear but they remain green, the Anthurium is receiving too little light, so place it somewhat closer to the window. A Pseudomonas sp. This new bacterial disease is presently wide spread and constitutes a serious limiting factor for commercial anthurium … Anthracnose | Bacterial blight | Bacterial leaf spot | Bacterial wilt | Nematode decline | Leaf cutting ants | Snails and slugs. Xant homonas leaf spot or bl ight of di eff enbachia. Anthracnose. In this case, place the plant about a meter further away from the window. Spotted leaves occur when fungal spores in the air find a warm, wet, plant surface to cling to. The bacterial leaf-spot of anthurium emerged during the 1980s, in the French West Indies and Trinidad. Institut National de la Recherche Agronomique, Station de Pathologie végétale, de Phytoecologie et de Malherbologie, BP 1232, 97184, Pointe‐d‐Pitre Cedex, Guadeloupe, FWI. Bacterial leaf spot and blight of Araceae, including Dieffenbachia, Anthurium, Philodendron, and Syngonium is caused by X. axonopodis pv. Int J Syst Evol Microbiol 2000; 50:235-246. Corresponding Author. dieffenbachiae. Figu re 1. IJSEM list: Anonymous. These plants, wh ich belon g to Bacterial Leaf Spot of Anthurium (Anthurium spp.) nov., a new phytopathogenic bacterium which causes bacterial leaf-spot of anthurium. Brown leaf margins and leaf tips. You might encounter scale and mealybugs on your Anthurium insigne, as well as some bacterial leaf spot. Bacterial Wilt. Fungal leaf spot can be found in your outdoor garden as well as on your houseplant. A Xanthomonas leaf spot on a Dieffenbachia of anthurium outdoor garden as well as on your anthurium insigne, well... 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